TPS2060 - CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES

7/27/2019 TPS2060 - CURRENT-LIMITED, POWER-DISTRIBUTION SWITCHES

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DGN8

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F E A T U R E S A P P L I C A T I O N S

TPS2060

DGN PACKAGE

(TOP VIEW)

GND

IN

EN2

OC1

OUT1

OUT2EN1

OC2

1

2

3

4

8

7

6

5

TPS2064

DGN PACKAGE

(TOP VIEW)

GND

IN

EN2

OC1

OUT1

OUT2EN1

OC2

1

2

3

4

8

7

6

5

D E S C R I P T I O N

TPS201xA

TPS202x

TPS203x

33 m, single 0.2 A 2 A0.2 A 2 A

0.2 A 2 A

TPS2014

TPS2015

TPS2041B

TPS2051B

TPS2045

TPS2055

TPS2061

TPS2065

80 m, single

600 mA

1 A

500 mA

500 mA

250 mA

250 mA

1 A

1 A

GENERAL SWITCH CATALOG

TPS2042B

TPS2052B

TPS2046

TPS2056

TPS2062

TPS2066

TPS2060

TPS2064

80 m, dual500 mA

500 mA

250 mA

250 mA

1 A

1 A

1.5 A

1.5 A

TPS2100/1260 m

IN1 500 mA

IN2 10 mA

OUT

IN1

IN2 TPS2102/3/4/5

IN1 500 mA

IN2 100 mA1.3

TPS2043

TPS2053B

TPS2047

TPS2057

TPS2063

TPS2067

80 m, triple

500 mA

500 mA

250 mA

250 mA

1 A

1 A

TPS2044B

TPS2054B

TPS2048

TPS2058

80 m, quad

500 mA

500 mA

250 mA

250 mA

80 m, dual

TPS2080

TPS2081

TPS2082

TPS2090

500 mA

500 mA

500 mA

250 mA

TPS2091

TPS2092

250 mA

250 mA

80 m, quad

TPS2085

TPS2086

TPS2087

TPS2095

500 mA

500 mA

500 mA

250 mA

TPS2096

TPS2097

250 mA

250 mA

T P S 2 0 6 0 T P S 2 0 6 4

S L V S 5 5 3 A M A R C H 2 0 0 5 R E V I S E D J U L Y 2 0 0 5

C U R R E N T - L I M I T E D , P O W E R - D I S T R I B U T I O N S W I T C H E S

H e a v y C a p a c i t i v e L o a d s 7 0 - m H i g h - S i d e M O S F E T

S h o r t - C i r c u i t P r o t e c t i o n s 1 . 5 - A C o n t i n u o u s C u r r e n t

T h e r m a l a n d S h o r t - C i r c u i t P r o t e c t i o n

A c c u r a t e C u r r e n t L i m i t ( 1 . 6 A m i n , 2 . 6 A m a x )

O p e r a t i n g R a n g e : 2 . 7 V t o 5 . 5 V

0 . 6 - m s T y p i c a l R i s e T i m e

U n d e r v o l t a g e L o c k o u t

D e g l i t c h e d F a u l t R e p o r t ( O C )

N o O C G l i t c h D u r i n g P o w e r U p

1 - A M a x i m u m S t a n d b y S u p p l y C u r r e n t

B i d i r e c t i o n a l S w i t c h

A m b i e n t T e m p e r a t u r e R a n g e : 0 C t o 7 0 C E S D P r o t e c t i o n

U L L i s t e d - F i l e N o . E 1 6 9 9 1 0

T h e T P S 2 0 6 x p o w e r - d i s t r i b u t i o n s w i t c h e s a r e i n t e n d e d f o r a p p l i c a t i o n s w h e r e h e a v y c a p a c i t i v e l o a d s a n d s h o r t - c i r c u i t s a r e l i k e l y t o b e e n c o u n t e r e d . T h i s d e v i c e i n c o r p o r a t e s 7 0 - m N - c h a n n e l M O S F E T p o w e r s w i t c h e s f o r p o w e r - d i s t r i b u t i o n s y s t e m s t h a t r e q u i r e m u l t i p l e p o w e r s w i t c h e s i n a s i n g l e p a c k a g e . E a c h s w i t c h i s c o n t r o l l e d b y a l o g i c e n a b l e i n p u t . G a t e d r i v e i s p r o v i d e d b y a n i n t e r n a l c h a r g e p u m p d e s i g n e d t o c o n t r o l t h e p o w e r - s w i t c h r i s e t i m e s a n d f a l l t i m e s t o m i n i m i z e c u r r e n t s u r g e s d u r i n g s w i t c h i n g . T h e c h a r g e p u m p r e q u i r e s n o e x t e r n a l c o m p o n e n t s a n d a l l o w s o p e r a t i o n f r o m s u p p l i e s a s l o w a s 2 . 7 V .

W h e n t h e o u t p u t l o a d e x c e e d s t h e c u r r e n t - l i m i t t h r e s h o l d o r a s h o r t i s p r e s e n t , t h e d e v i c e l i m i t s t h e o u t p u t c u r r e n t t o a s a f e l e v e l b y s w i t c h i n g i n t o a c o n s t a n t - c u r r e n t m o d e , p u l l i n g t h e o v e r c u r r e n t ( O C x ) l o g i c o u t p u t l o w . W h e n c o n t i n u o u s h e a v y o v e r l o a d s a n d s h o r t - c i r c u i t s i n c r e a s e t h e p o w e r d i s s i p a t i o n i n t h e s w i t c h , c a u s i n g t h e j u n c t i o n t e m p e r a t u r e t o r i s e , a t h e r m a l p r o t e c t i o n c i r c u i t s h u t s o f f t h e s w i t c h t o p r e v e n t d a m a g e . R e c o v e r y f r o m a t h e r m a l s h u t d o w n i s a u t o m a t i c o n c e t h e d e v i c e h a s c o o l e d s u f f i c i e n t l y . I n t e r n a l c i r c u i t r y e n s u r e s t h a t t h e s w i t c h r e m a i n s o f f u n t i l v a l i d i n p u t v o l t a g e i s p r e s e n t . T h i s p o w e r - d i s t r i b u t i o n s w i t c h i s d e s i g n e d t o s e t c u r r e n t l i m i t a t 2 . 1 A t y p i c a l l y .

P l e a s e b e a w a r e t h a t a n i m p o r t a n t n o t i c e c o n c e r n i n g a v a i l a b i l i t y , s t a n d a r d w a r r a n t y , a n d u s e i n c r i t i c a l a p p l i c a t i o n s o f T e x a s I n s t r u m e n t s s e m i c o n d u c t o r p r o d u c t s a n d d i s c l a i m e r s t h e r e t o a p p e a r s a t t h e e n d o f t h i s d a t a s h e e t .

P R O D U C T I O N D A T A i n f o r m a t i o n i s c u r r e n t a s o f p u b l i c a t i o n d a t e . C o p y r i g h t 2 0 0 5 , T e x a s I n s t r u m e n t s I n c o r p o r a t e d P r o d u c t s c o n f o r m t o s p e c i f i c a t i o n s p e r t h e t e r m s o f t h e T e x a s I n s t r u m e n t s s t a n d a r d w a r r a n t y . P r o d u c t i o n p r o c e s s i n g d o e s n o t

n e c e s s a r i l y i n c l u d e t e s t i n g o f a l l p a r a m e t e r s .


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A B S O L U T E M A X I M U M R A T I N G S

D I S S I P A T I N G R A T I N G T A B L E

R E C O M M E N D E D O P E R A T I N G C O N D I T I O N S

T P S 2 0 6 0 T P S 2 0 6 4


T h e s e d e v i c e s h a v e l i m i t e d b u i l t - i n E S D p r o t e c t i o n . T h e l e a d s s h o u l d b e s h o r t e d t o g e t h e r o r t h e d e v i c e p l a c e d i n c o n d u c t i v e f o a m d u r i n g s t o r a g e o r h a n d l i n g t o p r e v e n t e l e c t r o s t a t i c d a m a g e t o t h e M O S g a t e s .

A V A I L A B L E O P T I O N A N D O R D E R I N G I N F O R M A T I O N

R E C O M M E N D E D T Y P I C A L P A C K A G E D

M A X I M U M S H O R T - C I R C U I T N U M B E R O F D E V I C E S ( 1 ) ( 2 ) T A E N A B L E C O N T I N U O U S C U R R E N T L I M I T S W I T C H E S M S O P ( D G N ) L O A D C U R R E N T A T 2 5 C

A c t i v e l o w T P S 2 0 6 0 D G N 0 C t o 7 0 C 1 . 5 A 2 . 1 A D u a l

A c t i v e h i g h T P S 2 0 6 4 D G N

( 1 ) T h e p a c k a g e i s a v a i l a b l e t a p e d a n d r e e l e d . A d d a n R s u f f i x t o d e v i c e t y p e s ( e . g . , T P S 2 0 6 0 D G N ) . ( 2 ) F o r t h e m o s t c u r r e n t p a c k a g e a n d o r d e r i n g i n f o r m a t i o n , s e e t h e P a c k a g e O p t i o n A d d e n d u m a t t h e e n d o f t h i s d o c u m e n t , o r s e e t h e T I

w e b s i t e a t w w w . t i . c o m .

o v e r o p e r a t i n g f r e e - a i r t e m p e r a t u r e r a n g e u n l e s s o t h e r w i s e n o t e d ( 1 )

U N I T

I n p u t v o l t a g e r a n g e , V I ( I N ) ( 2 ) - 0 . 3 V t o 6 V

V I I n p u t v o l t a g e r a n g e , V I ( / E N x ) , V I ( E N x ) - 0 . 3 V t o 6 V

V o l t a g e r a n g e , V I ( / O C ) , V I ( / O C x ) - 0 . 3 V t o 6 V

V O O u t p u t v o l t a g e r a n g e , V O ( O U T ) ( 2 ), V O ( O U T x ) - 0 . 3 V t o 6 V

IO C o n t i n u o u s o u t p u t c u r r e n t , I O ( O U T ) , I O ( O U T x ) I n t e r n a l l y l i m i t e d

C o n t i n u o u s t o t a l p o w e r d i s s i p a t i o n S e e D i s s i p a t i o n R a t i n g T a b l e

T J O p e r a t i n g v i r t u a l j u n c t i o n t e m p e r a t u r e r a n g e 0 C t o 1 0 5 C

T s t g S t o r a g e t e m p e r a t u r e r a n g e - 6 5 C t o 1 5 0 C

L e a d t e m p e r a t u r e s o l d e r i n g 1 , 6 m m ( 1 / 1 6 i n c h ) f r o m c a s e f o r 1 0 s e c o n d s 2 6 0 C

H u m a n b o d y m o d e l M I L - S T D - 8 8 3 C 2 k V E l e c t r o s t a t i c d i s c h a r g e ( E S D ) p r o t e c t i o n

C h a r g e d e v i c e m o d e l ( C D M ) 5 0 0 V

( 1 ) S t r e s s e s b e y o n d t h o s e l i s t e d u n d e r a b s o l u t e m a x i m u m r a t i n g s m a y c a u s e p e r m a n e n t d a m a g e t o t h e d e v i c e . T h e s e a r e s t r e s s r a t i n g s o n l y , a n d f u n c t i o n a l o p e r a t i o n o f t h e d e v i c e a t t h e s e o r a n y o t h e r c o n d i t i o n s b e y o n d t h o s e i n d i c a t e d u n d e r r e c o m m e n d e d o p e r a t i n g c o n d i t i o n s i s n o t i m p l i e d . E x p o s u r e t o a b s o l u t e - m a x i m u m - r a t e d c o n d i t i o n s f o r e x t e n d e d p e r i o d s m a y a f f e c t d e v i c e r e l i a b i l i t y .

( 2 ) A l l v o l t a g e s a r e w i t h r e s p e c t t o G N D .

T A < 2 5 C D E R A T I N G F A C T O R T A = 7 0 CP A C K A G E P O W E R R A T I N G A B O V E T A = 2 5 C P O W E R R A T I N G

D G N - 8 1 7 1 2 . 3 m W 1 7 . 1 2 3 m W / C 9 4 1 . 7 8 m W

M I N M A X U N I T

I n p u t v o l t a g e , V I ( I N ) 2 . 7 5 . 5 V V I I n p u t v o l t a g e , V I ( E N x ) , V I ( / E N x ) 0 5 . 5 V

IO C o n t i n u o u s o u t p u t c u r r e n t , I O ( O U T x ) 0 1 . 5 A

T J O p e r a t i n g v i r t u a l j u n c t i o n t e m p e r a t u r e 0 1 0 5 C

2
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E L E C T R I C A L C H A R A C T E R I S T I C S

T P S 2 0 6 0 T P S 2 0 6 4


o v e r r e c o m m e n d e d o p e r a t i n g j u n c t i o n t e m p e r a t u r e r a n g e , V I ( I N ) = 5 . 5 V , I O = 1 A , V I ( / E N x ) = 0 V , o r V I ( E N x ) = 5 . 5 V ( u n l e s s

o t h e r w i s e n o t e d )

P A R A M E T E R T E S T C O N D I T I O N S ( 1 ) M I N T Y P M A X U N I T

P O W E R S W I T C H

S t a t i c d r a i n - s o u r c e o n - s t a t e r e s i s t - V I ( I N ) = 5 V o r a n c e , 5 - V o p e r a t i o n a n d 3 . 3 - V o p - I O = 1 . 5 A 0 C < T J < 1 0 5 C 7 0 1 1 5 m 3 . 3 V ,

e r a t i o n r D S ( o n )

S t a t i c d r a i n - s o u r c e o n - s t a t e r e s i s t - a n c e , 2 . 7 - V V I ( I N ) = 2 . 7 V , I O = 1 . 5 A 0 C < T J < 1 0 5 C 7 5 1 2 5 m o p e r a t i o n ( 2 )

V I ( I N ) = 5 . 5 V 0 . 6 1 . 5 tr

( 2 ) R i s e t i m e , o u t p u t V I ( I N ) = 2 . 7 V 0 . 4 1 C L = 1 F , T J = 2 5 C m sR L = 5 V I ( I N ) = 5 . 5 V 0 . 0 5 0 . 5

tf( 2 ) F a l l t i m e , o u t p u t

V I ( I N ) = 2 . 7 V 0 . 0 5 0 . 5

E N A B L E I N P U T E N O R E N

V I H H i g h - l e v e l i n p u t v o l t a g e 2 . 7 V < V I ( I N ) < 5 . 5 V 2 V

V I L L o w - l e v e l i n p u t v o l t a g e 2 . 7 V < V I ( I N ) < 5 . 5 V 0 . 8

II I n p u t c u r r e n t V I ( / E N x ) = 0 V o r 5 . 5 V , V I ( E N x ) = 0 V o r 5 . 5 V - 0 . 5 0 . 5 Ato n

( 3 ) T u r n o n t i m e C L = 1 0 0 F , R L = 5 3m s

to f f( 3 ) T u r n o f f t i m e C L = 1 0 0 F , R L = 5 1 0

C U R R E N T L I M I T

V I ( I N ) = 5 V , O U T c o n n e c t e d t o G N D , d e v i c e e n a b l e d i n t o IO S S h o r t - c i r c u i t o u t p u t c u r r e n t 1 . 6 2 . 1 2 . 6 s h o r t - c i r c u i t A

I O C _ T R I P ( 3 ) O v e r - c u r r e n t t r i p t h r e s h o l d V I ( I N ) = 5 V , C u r r e n t r a m p ( 1 0 0 A / s ) o n O U T 3 . 2 3 . 9

T J = 2 5 C 0 . 5 1 N o l o a d o n O U T , V I ( / E N x ) = 5 . 5 V , S u p p l y c u r r e n t , l o w - l e v e l o u t p u t Ao r V I ( E N x ) = 0 V 0 C < T J < 1 0 5 C 0 . 5 5

T J = 2 5 C 5 0 7 0 N o l o a d o n O U T , V I ( / E N x ) = 0 V , S u p p l y c u r r e n t , h i g h - l e v e l o u t p u t Ao r V I ( E N x ) = 5 . 5 V 0 C < T J < 1 0 5 C 5 0 9 0

O U T c o n n e c t e d t o g r o u n d , L e a k a g e c u r r e n t V

I ( / E N x )

= 5 . 5 V , 0 C < T J

< 1 0 5 C 1 Ao r V I ( E N x ) = 0 V

R e v e r s e l e a k a g e c u r r e n t V I ( O U T x ) = 5 . 5 V , I N = g r o u n d ( 3 ) T J = 2 5 C 0 . 2 A

U N D E R V O L T A G E L O C K O U T

L o w - l e v e l i n p u t v o l t a g e , I N 2 2 . 5 V

H y s t e r e s i s , I N T J = 2 5 C 7 5 m V

O V E R C U R R E N T O C 1 a n d O C 2

O u t p u t l o w v o l t a g e , V O L ( O C x ) I O ( / O C x ) = 5 m A 0 . 4 V

O f f - s t a t e c u r r e n t ( 3 ) V O ( / O C x ) = 5 V o r 3 . 3 V 1 A

O C d e g l i t c h ( 3 ) O C x a s s e r t i o n o r d e a s s e r t i o n 4 8 1 5 m s

T H E R M A L S H U T D O W N ( 4 )

T h e r m a l s h u t d o w n t h r e s h o l d ( 3 ) 1 3 5 C

R e c o v e r y f r o m t h e r m a l s h u t d o w n

( 3 )

1 2 5 CH y s t e r e s i s ( 3 ) 1 0 C

( 1 ) P u l s e - t e s t i n g t e c h n i q u e s m a i n t a i n j u n c t i o n t e m p e r a t u r e c l o s e t o a m b i e n t t e m p e r a t u r e ; t h e r m a l e f f e c t s m u s t b e t a k e n i n t o a c c o u n t s e p a r a t e l y .

( 2 ) N o t t e s t e d i n p r o d u c t i o n , s p e c i f i e d b y d e s i g n . ( 3 ) N o t t e s t e d i n p r o d u c t i o n , s p e c i f i e d b y d e s i g n . ( 4 ) T h e t h e r m a l s h u t d o w n o n l y r e a c t s u n d e r o v e r c u r r e n t c o n d i t i o n s .

3


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D E V I C E I N F O R M A T I O N

T P S 2 0 6 0 T P S 2 0 6 4


T e r m i n a l F u n c t i o n s ( T P S 2 0 6 0 a n d T P S 2 0 6 4 )

T E R M I N A L I / O D E S C R I P T I O N

N A M E N O .

T P S 2 0 6 0 T P S 2 0 6 4

E N 1 3 - I E n a b l e i n p u t , l o g i c l o w t u r n s o n p o w e r s w i t c h I N - O U T 1

E N 2 4 - I E n a b l e i n p u t , l o g i c l o w t u r n s o n p o w e r s w i t c h I N - O U T 2

E N 1 - 3 I E n a b l e i n p u t , l o g i c h i g h t u r n s o n p o w e r s w i t c h I N - O U T 1

E N 2 - 4 I E n a b l e i n p u t , l o g i c h i g h t u r n s o n p o w e r s w i t c h I N - O U T 2

G N D 1 1 G r o u n d

I N 2 2 I I n p u t v o l t a g e

O C 1 8 8 O O v e r c u r r e n t , o p e n - d r a i n o u t p u t , a c t i v e l o w , I N - O U T 1

O C 2 5 5 O O v e r c u r r e n t , o p e n - d r a i n o u t p u t , a c t i v e l o w , I N - O U T 2

O U T 1 7 7 O P o w e r - s w i t c h o u t p u t , I N - O U T 1

O U T 2 6 6 O P o w e r - s w i t c h o u t p u t , I N - O U T 2

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Thermal

Sense

Driver Current

Limit

Charge

Pump

UVLO

CS

Driver Current

Limit

CS

Thermal

Sense

ChargePump

GND

EN1

IN

EN2

OC1

OUT1

OUT2

OC2

Deglitch

Deglitch

(See Note A)

(See Note A)

(See Note B)

(See Note B)

Note A: Current senseNote B: Active low (ENx) for TPS2060. Active high (ENx) for TPS2064.

P A R A M E T E R M E A S U R E M E N T I N F O R M A T I O N

RL CL

OUT

tr tf

90% 90%

10%10%

50% 50%

90%

10%

VO(OUT)

VI(EN)

VO(OUT)

VOLTAGE WAVEFORMS

TEST CIRCUIT

ton toff

50% 50%

90%

10%

VI(EN)

VO(OUT)

ton toff

T P S 2 0 6 0 T P S 2 0 6 4


F u n c t i o n a l B l o c k D i a g r a m

F i g u r e 1 . T e s t C i r c u i t a n d V o l t a g e W a v e f o r m s

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VI(EN)

5 V/div

VO(OUT)

2 V/div

t - Time - 400 s

R = 5

C = 1 F,

L

L

,

= 25 CTA

VI(EN)

5 V/div

VO(OUT)

2 V/div

t - Time - 400 s

R = 5

C = 1 F,

L

L

,

= 25 CTA

VI(EN)

5 V/div

VO(OUT)

2 V/div

t - Time - 400 s

R = 5

C = 100 F,

L

L

,

= 25 CTA

VI(EN)

5 V/div

VO(OUT)

2 V/div

t - Time - 400 s

R = 5C = 100 F,L

L

,

= 25 CTA

T P S 2 0 6 0 T P S 2 0 6 4


P A R A M E T E R M E A S U R E M E N T I N F O R M A T I O N ( c o n t i n u e d )

F i g u r e 2 . T u r n o n D e l a y a n d R i s e T i m e W i t h 1 - F L o a d F i g u r e 3 . T u r n o f f D e l a y a n d F a l l T i m e W i t h 1 - F L o a d

F i g u r e 4 . T u r n o n D e l a y a n d R i s e T i m e W i t h 1 0 0 - F L o a d F i g u r e 5 . T u r n o f f D e l a y a n d F a l l T i m e W i t h 1 0 0 - F L o a d

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VI(EN)5 V/div

IO(OUT)500 mA/div

t Time 500 s/div

220 F

470 F

100 F

VI(EN)5 V/div

IO(OUT)500 mA/div

t Time 500 s/div

VIN= 5 V,RL= 3,TA= 25C

VO(OUT)2 V/div

IO(OUT)1 A/div

t Time 2 ms/div

T P S 2 0 6 0 T P S 2 0 6 4


P A R A M E T E R M E A S U R E M E N T I N F O R M A T I O N ( c o n t i n u e d )

F i g u r e 6 . S h o r t - C i r c u i t C u r r e n t , F i g u r e 7 . I n r u s h C u r r e n t W i t h D i f f e r e n t D e v i c e E n a b l e d I n t o S h o r t L o a d C a p a c i t a n c e

F i g u r e 8 . 0 . 6 - L o a d C o n n e c t e d t o E n a b l e d D e v i c e

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T Y P I C A L C H A R A C T E R I S T I C S

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

2 3 4 5 6

TurnonTimems

VI Input Voltage V

CL= 100 F,

RL= 5,TA= 25C

1.5

1.6

1.7

1.8

1.9

2

2 3 4 5 6

CL= 100 F,

RL= 5,TA= 25C

TurnoffTimemS

VI Input Voltage V

0

0.1

0.2

0.3

0.4

0.5

0.6

2 3 4 5 6

RiseTimems

VI Input Voltage V

CL= 1 F,

RL= 5,

TA= 25C

0

0.05

0.1

0.15

0.2

0.25

2 3 4 5 6

CL= 1 F,

RL= 5,

TA= 25C

FallTimems

VI Input Voltage V

T P S 2 0 6 0 T P S 2 0 6 4


T U R N O N T I M E T U R N O F F T I M E v s v s

I N P U T V O L T A G E I N P U T V O L T A G E

F i g u r e 9 . F i g u r e 1 0 .

R I S E T I M E F A L L T I M E v s v s

I N P U T V O L T A G E I N P U T V O L T A G E

F i g u r e 1 1 . F i g u r e 1 2 .

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0

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

0.5

50 0 50 100 150

VI= 5.5 VVI= 5 V

VI= 3.3 VVI= 2.7 V

TJ Junction Temperature C

SupplyCurrent,OutputDisabled

II

(IN)

A

0

10

20

30

40

50

60

70

50 0 50 100 150

VI= 5.5 V

VI= 5 V

VI= 3.3 V

VI= 2.7 V


SupplyCurrent,OutputEnabled

II(IN)

A

0

20

40

60

80

100

120

50 0 50 100 150

Out1 = 5 V

Out1 = 3.3 V

Out1 = 2.7 V

IO= 0.5 A


rDS(on)StaticDrain-Sourc

e

On-StateResistancem

1.6

1.7

1.8

1.9

2

2.2

2.3

2.4

2.5

2.6

-50 0 50 100 150

2.1

T - Junction Temperature - CJ

I

-Short-CircuitCurrentLim

it-A

OS

V = 2.7 VI

V = 3.3 VI

V = 5 VI

V = 5.5 VI

T P S 2 0 6 0 T P S 2 0 6 4


T Y P I C A L C H A R A C T E R I S T I C S ( c o n t i n u e d )

S U P P L Y C U R R E N T , O U T P U T E N A B L E D S U P P L Y C U R R E N T , O U T P U T D I S A B L E D v s v s

J U N C T I O N T E M P E R A T U R E J U N C T I O N T E M P E R A T U R E

F i g u r e 1 3 . F i g u r e 1 4 .

S T A T I C D R A I N - S O U R C E O N - S T A T E R E S I S T A N C E S H O R T - C I R C U I T O U T P U T C U R R E N T v s v s

J U N C T I O N T E M P E R A T U R E J U N C T I O N T E M P E R A T U R E

F i g u r e 1 5 . F i g u r e 1 6 .

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2.1

2.14

2.18

2.22

2.26

2.3

50 0 50 100 150

UVLO Rising

UVLO Falling

UVOL

UndervoltageLockoutV


1.5

1.7

1.9

2.1

2.3

2.5

2.5 3 3.5 4 4.5 5 5.5 6

TA= 25CLoad Ramp = 1A/10 ms

ThresholdTripCurrentA

VI Input Voltage V

0

50

100

150

200

0 2.5 5 7.5 10

Current-LimitResponse-

s

Peak Current - A

VI = 5 V,

TA

= 25 C

T P S 2 0 6 0 T P S 2 0 6 4


T Y P I C A L C H A R A C T E R I S T I C S ( c o n t i n u e d )

T H R E S H O L D T R I P C U R R E N T U N D E R V O L T A G E L O C K O U T v s v s

I N P U T V O L T A G E J U N C T I O N T E M P E R A T U R E

F i g u r e 1 7 . F i g u r e 1 8 .

C U R R E N T - L I M I T R E S P O N S E v s

P E A K C U R R E N T

F i g u r e 1 9 .

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A P P L I C A T I O N I N F O R M A T I O N

P O W E R - S U P P L Y C O N S I D E R A T I O N S

IN

OC1

EN1

OC2

2

8

5

7

0.1 F 22 F

0.1 F 22 F

Load

Load

OUT1

OUT2

Power Supply

2.7 V to 5.5 V

6

EN2

3

4

GND

0.1 F

TPS2060

1

O V E R C U R R E N T

O C R E S P O N S E

T P S 2 0 6 0 T P S 2 0 6 4


F i g u r e 2 0 . T y p i c a l A p p l i c a t i o n

A 0 . 0 1 - F t o 0 . 1 - F c e r a m i c b y p a s s c a p a c i t o r b e t w e e n I N a n d G N D , c l o s e t o t h e d e v i c e , i s r e c o m m e n d e d . P l a c i n g a h i g h - v a l u e e l e c t r o l y t i c c a p a c i t o r o n t h e o u t p u t p i n ( s ) i s r e c o m m e n d e d w h e n t h e o u t p u t l o a d i s h e a v y . T h i s p r e c a u t i o n r e d u c e s p o w e r - s u p p l y t r a n s i e n t s t h a t m a y c a u s e r i n g i n g o n t h e i n p u t . A d d i t i o n a l l y , b y p a s s i n g t h e o u t p u t w i t h a 0 . 0 1 - F t o 0 . 1 - F c e r a m i c c a p a c i t o r i m p r o v e s t h e i m m u n i t y o f t h e d e v i c e t o s h o r t - c i r c u i t t r a n s i e n t s .

A s e n s e F E T i s e m p l o y e d t o c h e c k f o r o v e r c u r r e n t c o n d i t i o n s . U n l i k e c u r r e n t - s e n s e r e s i s t o r s , s e n s e F E T s d o n o t i n c r e a s e t h e s e r i e s r e s i s t a n c e o f t h e c u r r e n t p a t h . W h e n a n o v e r c u r r e n t c o n d i t i o n i s d e t e c t e d , t h e d e v i c e m a i n t a i n s a c o n s t a n t o u t p u t c u r r e n t a n d r e d u c e s t h e o u t p u t v o l t a g e a c c o r d i n g l y . C o m p l e t e s h u t d o w n o c c u r s o n l y i f t h e f a u l t i s p r e s e n t l o n g e n o u g h t o a c t i v a t e t h e r m a l l i m i t i n g .

T h r e e p o s s i b l e o v e r l o a d c o n d i t i o n s c a n o c c u r . I n t h e f i r s t c o n d i t i o n , t h e o u t p u t h a s b e e n s h o r t e d b e f o r e t h e d e v i c e i s e n a b l e d o r b e f o r e V I ( I N ) h a s b e e n a p p l i e d ( s e e F i g u r e 1 3 ) . T h e T P S 2 0 6 x s e n s e s t h e s h o r t a n d

i m m e d i a t e l y s w i t c h e s i n t o a c o n s t a n t - c u r r e n t o u t p u t . I n t h e s e c o n d c o n d i t i o n , a s h o r t o r a n o v e r l o a d o c c u r s w h i l e t h e d e v i c e i s e n a b l e d . A t t h e i n s t a n t t h e o v e r l o a d o c c u r s , h i g h c u r r e n t s m a y f l o w f o r a s h o r t p e r i o d o f t i m e b e f o r e t h e c u r r e n t - l i m i t c i r c u i t c a n r e a c t . A f t e r t h e c u r r e n t - l i m i t c i r c u i t h a s t r i p p e d ( r e a c h e d t h e o v e r c u r r e n t t r i p t h r e s h o l d ) , t h e d e v i c e s w i t c h e s i n t o c o n s t a n t - c u r r e n t m o d e .

I n t h e t h i r d c o n d i t i o n , t h e l o a d h a s b e e n g r a d u a l l y i n c r e a s e d b e y o n d t h e r e c o m m e n d e d o p e r a t i n g c u r r e n t . T h e c u r r e n t i s p e r m i t t e d t o r i s e u n t i l t h e c u r r e n t - l i m i t t h r e s h o l d i s r e a c h e d o r u n t i l t h e t h e r m a l l i m i t o f t h e d e v i c e i s e x c e e d e d ( s e e F i g u r e 1 4 ) . T h e T P S 2 0 6 x i s c a p a b l e o f d e l i v e r i n g c u r r e n t u p t o t h e c u r r e n t - l i m i t t h r e s h o l d w i t h o u t d a m a g i n g t h e d e v i c e . O n c e t h e t h r e s h o l d h a s b e e n r e a c h e d , t h e d e v i c e s w i t c h e s i n t o i t s c o n s t a n t - c u r r e n t m o d e .

T h e O C x o p e n - d r a i n o u t p u t i s a s s e r t e d ( a c t i v e l o w ) w h e n a n o v e r c u r r e n t o r o v e r t e m p e r a t u r e s h u t d o w n c o n d i t i o n

i s e n c o u n t e r e d a f t e r a 1 0 - m s d e g l i t c h t i m e o u t . T h e o u t p u t r e m a i n s a s s e r t e d u n t i l t h e o v e r c u r r e n t o r o v e r t e m p e r a t u r e c o n d i t i o n i s r e m o v e d . C o n n e c t i n g a h e a v y c a p a c i t i v e l o a d t o a n e n a b l e d d e v i c e c a n c a u s e a m o m e n t a r y o v e r c u r r e n t c o n d i t i o n ; h o w e v e r , n o f a l s e r e p o r t i n g o n O C x o c c u r s d u e t o t h e 1 0 - m s d e g l i t c h c i r c u i t . T h e T P S 2 0 6 x i s d e s i g n e d t o e l i m i n a t e f a l s e o v e r c u r r e n t r e p o r t i n g . T h e i n t e r n a l o v e r c u r r e n t d e g l i t c h e l i m i n a t e s t h e n e e d f o r e x t e r n a l c o m p o n e n t s t o r e m o v e u n w a n t e d p u l s e s . O C x i s n o t d e g l i t c h e d w h e n t h e s w i t c h i s t u r n e d o f f d u e t o a n o v e r t e m p e r a t u r e s h u t d o w n .

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GND

IN

EN1

EN2

OC1

OC2

OUT1

OUT2

TPS2060 Rpullup

V+

P O W E R D I S S I P A T I O N A N D J U N C T I O N T E M P E R A T U R E

T H E R M A L P R O T E C T I O N

U N D E R V O L T A G E L O C K O U T ( U V L O )

T P S 2 0 6 0 T P S 2 0 6 4


A P P L I C A T I O N I N F O R M A T I O N ( c o n t i n u e d )

F i g u r e 2 1 . T y p i c a l C i r c u i t f o r t h e O C P i n

T h e l o w o n - r e s i s t a n c e o n t h e N - c h a n n e l M O S F E T a l l o w s t h e s m a l l s u r f a c e - m o u n t p a c k a g e s t o p a s s l a r g e c u r r e n t s . T h e t h e r m a l r e s i s t a n c e s o f t h e s e p a c k a g e s a r e h i g h c o m p a r e d t o t h o s e o f p o w e r p a c k a g e s ; i t i s g o o d d e s i g n p r a c t i c e t o c h e c k p o w e r d i s s i p a t i o n a n d j u n c t i o n t e m p e r a t u r e . B e g i n b y d e t e r m i n i n g t h e r D S ( o n ) o f t h e

N - c h a n n e l M O S F E T r e l a t i v e t o t h e i n p u t v o l t a g e a n d o p e r a t i n g t e m p e r a t u r e . A s a n i n i t i a l e s t i m a t e , u s e t h e h i g h e s t o p e r a t i n g a m b i e n t t e m p e r a t u r e o f i n t e r e s t a n d r e a d r D S ( o n ) f r o m F i g u r e 1 5 . U s i n g t h i s v a l u e , t h e p o w e r d i s s i p a t i o n p e r s w i t c h c a n b e c a l c u l a t e d b y :

PD = rD S ( o n ) I2

M u l t i p l y t h i s n u m b e r b y t h e n u m b e r o f s w i t c h e s b e i n g u s e d . T h i s s t e p r e n d e r s t h e t o t a l p o w e r d i s s i p a t i o n f r o m t h e N - c h a n n e l M O S F E T s .

F i n a l l y , c a l c u l a t e t h e j u n c t i o n t e m p e r a t u r e :

T J = P D x R J A + T A

W h e r e :

T A = A m b i e n t t e m p e r a t u r e C

R J A = T h e r m a l r e s i s t a n c e

P D = T o t a l p o w e r d i s s i p a t i o n b a s e d o n n u m b e r o f s w i t c h e s b e i n g u s e d .

C o m p a r e t h e c a l c u l a t e d j u n c t i o n t e m p e r a t u r e w i t h t h e i n i t i a l e s t i m a t e . I f t h e y d o n o t a g r e e w i t h i n a f e w d e g r e e s , r e p e a t t h e c a l c u l a t i o n , u s i n g t h e c a l c u l a t e d v a l u e a s t h e n e w e s t i m a t e . T w o o r t h r e e i t e r a t i o n s a r e g e n e r a l l y s u f f i c i e n t t o g e t a r e a s o n a b l e a n s w e r .

T h e r m a l p r o t e c t i o n p r e v e n t s d a m a g e t o t h e I C w h e n h e a v y - o v e r l o a d o r s h o r t - c i r c u i t f a u l t s a r e p r e s e n t f o r e x t e n d e d p e r i o d s o f t i m e . T h e T P S 2 0 6 x i m p l e m e n t s a t h e r m a l s e n s i n g t o m o n i t o r t h e o p e r a t i n g j u n c t i o n t e m p e r a t u r e o f t h e p o w e r d i s t r i b u t i o n s w i t c h . I n a n o v e r c u r r e n t o r s h o r t - c i r c u i t c o n d i t i o n , t h e j u n c t i o n t e m p e r a t u r e r i s e s d u e t o e x c e s s i v e p o w e r d i s s i p a t i o n . O n c e t h e d i e t e m p e r a t u r e r i s e s t o a p p r o x i m a t e l y 1 4 0 C d u e t o o v e r c u r r e n t c o n d i t i o n s , t h e i n t e r n a l t h e r m a l s e n s e c i r c u i t r y t u r n s t h e p o w e r s w i t c h o f f , t h u s p r e v e n t i n g t h e p o w e r s w i t c h f r o m d a m a g e . H y s t e r e s i s i s b u i l t i n t o t h e t h e r m a l s e n s e c i r c u i t , a n d a f t e r t h e d e v i c e h a s c o o l e d a p p r o x i m a t e l y 1 0 C , t h e s w i t c h t u r n s b a c k o n . T h e s w i t c h c o n t i n u e s t o c y c l e i n t h i s m a n n e r u n t i l t h e l o a d f a u l t o r i n p u t p o w e r i s r e m o v e d . T h e O C x o p e n - d r a i n o u t p u t i s a s s e r t e d ( a c t i v e l o w ) w h e n a n o v e r t e m p e r a t u r e s h u t d o w n o r o v e r c u r r e n t o c c u r s .

A n u n d e r v o l t a g e l o c k o u t e n s u r e s t h a t t h e p o w e r s w i t c h i s i n t h e o f f s t a t e a t p o w e r u p . W h e n e v e r t h e i n p u t v o l t a g e f a l l s b e l o w a p p r o x i m a t e l y 2 V , t h e p o w e r s w i t c h i s q u i c k l y t u r n e d o f f . T h i s f a c i l i t a t e s t h e d e s i g n o f h o t - i n s e r t i o n s y s t e m s w h e r e i t i s n o t p o s s i b l e t o t u r n o f f t h e p o w e r s w i t c h b e f o r e i n p u t p o w e r i s r e m o v e d . T h e U V L O a l s o k e e p s t h e s w i t c h f r o m b e i n g t u r n e d o n u n t i l t h e p o w e r s u p p l y h a s r e a c h e d a t l e a s t 2 V , e v e n i f t h e s w i t c h i s e n a b l e d . O n r e i n s e r t i o n , t h e p o w e r s w i t c h i s t u r n e d o n , w i t h a c o n t r o l l e d r i s e t i m e t o r e d u c e E M I a n d v o l t a g e o v e r s h o o t s .

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U N I V E R S A L S E R I A L B U S ( U S B ) A P P L I C A T I O N S

H O S T / S E L F - P O W E R E D A N D B U S - P O W E R E D H U B S

T P S 2 0 6 0 T P S 2 0 6 4



T h e u n i v e r s a l s e r i a l b u s ( U S B ) i n t e r f a c e i s a 1 2 - M b / s , o r 1 . 5 - M b / s , m u l t i p l e x e d s e r i a l b u s d e s i g n e d f o r l o w - t o - m e d i u m b a n d w i d t h P C p e r i p h e r a l s ( e . g . , k e y b o a r d s , p r i n t e r s , s c a n n e r s , a n d m i c e ) . T h e f o u r - w i r e U S B i n t e r f a c e i s c o n c e i v e d f o r d y n a m i c a t t a c h - d e t a c h ( h o t p l u g - u n p l u g ) o f p e r i p h e r a l s . T w o l i n e s a r e p r o v i d e d f o r

d i f f e r e n t i a l d a t a , a n d t w o l i n e s a r e p r o v i d e d f o r 5 - V p o w e r d i s t r i b u t i o n . U S B d a t a i s a 3 . 3 - V l e v e l s i g n a l , b u t p o w e r i s d i s t r i b u t e d a t 5 V t o a l l o w f o r v o l t a g e d r o p s i n c a s e s w h e r e p o w e r i s d i s t r i b u t e d t h r o u g h m o r e t h a n o n e h u b a c r o s s l o n g c a b l e s . E a c h f u n c t i o n m u s t p r o v i d e i t s o w n r e g u l a t e d 3 . 3 V f r o m t h e 5 - V i n p u t o r i t s o w n i n t e r n a l p o w e r s u p p l y .

T h e U S B s p e c i f i c a t i o n d e f i n e s t h e f o l l o w i n g f i v e c l a s s e s o f d e v i c e s , e a c h d i f f e r e n t i a t e d b y p o w e r - c o n s u m p t i o n r e q u i r e m e n t s :

H o s t s / s e l f - p o w e r e d h u b s ( S P H )

B u s - p o w e r e d h u b s ( B P H )

L o w - p o w e r , b u s - p o w e r e d f u n c t i o n s

H i g h - p o w e r , b u s - p o w e r e d f u n c t i o n s

S e l f - p o w e r e d f u n c t i o n s

S P H s a n d B P H s d i s t r i b u t e d a t a a n d p o w e r t o d o w n s t r e a m f u n c t i o n s . T h e T P S 2 0 6 x h a s h i g h e r c u r r e n t c a p a b i l i t y t h a n r e q u i r e d b y o n e U S B p o r t ; s o , i t c a n b e u s e d o n t h e h o s t s i d e a n d s u p p l i e s p o w e r t o m u l t i p l e d o w n s t r e a m p o r t s o r f u n c t i o n s .

H o s t s a n d S P H s h a v e a l o c a l p o w e r s u p p l y t h a t p o w e r s t h e e m b e d d e d f u n c t i o n s a n d t h e d o w n s t r e a m p o r t s ( s e e F i g u r e 2 2 ) . T h i s p o w e r s u p p l y m u s t p r o v i d e f r o m 5 . 2 5 V t o 4 . 7 5 V t o t h e b o a r d s i d e o f t h e d o w n s t r e a m c o n n e c t i o n u n d e r f u l l - l o a d a n d n o - l o a d c o n d i t i o n s . H o s t s a n d S P H s a r e r e q u i r e d t o h a v e c u r r e n t - l i m i t p r o t e c t i o n a n d m u s t r e p o r t o v e r c u r r e n t c o n d i t i o n s t o t h e U S B c o n t r o l l e r . T y p i c a l S P H s a r e d e s k t o p P C s , m o n i t o r s , p r i n t e r s , a n d s t a n d - a l o n e h u b s .

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IN

OC1

EN1

OC2

EN2

GND

0.1 F

2

8

3

5

4

7

22 F

22 F

GND

1

OUT1

TPS2060

Power Supply

D+

D

VBUS

GND

D+

D

VBUS

Downstream

USB Ports

USB

Controller

3.3 V 5 V

2 F GND

OUT2

D+

D

VBUS

22 F GND

D+

D

VBUS

6

0.1 F

0.1 F

0.1 F

0.1 F

22 F GND

D+

D

VBUS

0.1 F

22 F GND

D+

DVBUS

0.1 F

T P S 2 0 6 0 T P S 2 0 6 4



F i g u r e 2 2 . T y p i c a l S i x - P o r t U S B H o s t / S e l f - P o w e r e d H u b

B P H s o b t a i n a l l p o w e r f r o m u p s t r e a m p o r t s a n d o f t e n c o n t a i n a n e m b e d d e d f u n c t i o n . T h e h u b s a r e r e q u i r e d t o p o w e r u p w i t h l e s s t h a n o n e u n i t l o a d . T h e B P H u s u a l l y h a s o n e e m b e d d e d f u n c t i o n , a n d p o w e r i s a l w a y s a v a i l a b l e t o t h e c o n t r o l l e r o f t h e h u b . I f t h e e m b e d d e d f u n c t i o n a n d h u b r e q u i r e m o r e t h a n 1 0 0 m A o n p o w e r u p , t h e p o w e r t o t h e e m b e d d e d f u n c t i o n m a y n e e d t o b e k e p t o f f u n t i l e n u m e r a t i o n i s c o m p l e t e d . T h i s c a n b e a c c o m p l i s h e d b y r e m o v i n g p o w e r o r b y s h u t t i n g o f f t h e c l o c k t o t h e e m b e d d e d f u n c t i o n . P o w e r s w i t c h i n g t h e e m b e d d e d f u n c t i o n i s n o t n e c e s s a r y i f t h e a g g r e g a t e p o w e r d r a w f o r t h e f u n c t i o n a n d c o n t r o l l e r i s l e s s t h a n o n e u n i t l o a d . T h e t o t a l c u r r e n t d r a w n b y t h e b u s - p o w e r e d d e v i c e i s t h e s u m o f t h e c u r r e n t t o t h e c o n t r o l l e r , t h e e m b e d d e d f u n c t i o n , a n d t h e d o w n s t r e a m p o r t s , a n d i t i s l i m i t e d t o 5 0 0 m A f r o m a n u p s t r e a m p o r t .

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L O W - P O W E R B U S - P O W E R E D A N D H I G H - P O W E R B U S - P O W E R E D F U N C T I O N S

IN

OC1

OC2

2

8

3

5

4

7

0.1 F 10 F

Internal

Function

OUT1

Power Supply

3.3 V

EN1

6

0.1 F 10 F

OUT2 Internal

Function

0.1 F10 F

USB

Control

GND

VBUS

D

D+TPS2060

EN2

GND

1

U S B P O W E R - D I S T R I B U T I O N R E Q U I R E M E N T S

T P S 2 0 6 0 T P S 2 0 6 4



B o t h l o w - p o w e r a n d h i g h - p o w e r b u s - p o w e r e d f u n c t i o n s o b t a i n a l l p o w e r f r o m u p s t r e a m p o r t s ; l o w - p o w e r f u n c t i o n s a l w a y s d r a w l e s s t h a n 1 0 0 m A ; h i g h - p o w e r f u n c t i o n s m u s t d r a w l e s s t h a n 1 0 0 m A a t p o w e r u p a n d c a n d r a w u p t o 5 0 0 m A a f t e r e n u m e r a t i o n . I f t h e l o a d o f t h e f u n c t i o n i s m o r e t h a n t h e p a r a l l e l c o m b i n a t i o n o f 4 4

a n d 1 0 F a t p o w e r u p , t h e d e v i c e m u s t i m p l e m e n t i n r u s h c u r r e n t l i m i t i n g ( s e e F i g u r e 2 3 ) . W i t h T P S 2 0 6 x , t h e i n t e r n a l f u n c t i o n s c o u l d d r a w m o r e t h a n 5 0 0 m A , w h i c h f i t s t h e n e e d s o f s o m e a p p l i c a t i o n s s u c h a s m o t o r d r i v i n g c i r c u i t s .

F i g u r e 2 3 . H i g h - P o w e r B u s - P o w e r e d F u n c t i o n

U S B c a n b e i m p l e m e n t e d i n s e v e r a l w a y s , a n d , r e g a r d l e s s o f t h e t y p e o f U S B d e v i c e b e i n g d e v e l o p e d , s e v e r a l p o w e r - d i s t r i b u t i o n f e a t u r e s m u s t b e i m p l e m e n t e d .

H o s t s / S P H s m u s t :

C u r r e n t - l i m i t d o w n s t r e a m p o r t s

R e p o r t o v e r c u r r e n t c o n d i t i o n s o n U S B V B U S B P H s m u s t :

E n a b l e / d i s a b l e p o w e r t o d o w n s t r e a m p o r t s

P o w e r u p a t < 1 0 0 m A

L i m i t i n r u s h c u r r e n t ( < 4 4 a n d 1 0 F )

F u n c t i o n s m u s t :

L i m i t i n r u s h c u r r e n t s

P o w e r u p a t < 1 0 0 m A

T h e f e a t u r e s e t o f t h e T P S 2 0 6 x a l l o w s t h e m t o m e e t e a c h o f t h e s e r e q u i r e m e n t s . T h e i n t e g r a t e d c u r r e n t - l i m i t i n g a n d o v e r c u r r e n t r e p o r t i n g i s r e q u i r e d b y h o s t s a n d s e l f - p o w e r e d h u b s . T h e l o g i c - l e v e l e n a b l e a n d c o n t r o l l e d r i s e t i m e s m e e t t h e n e e d o f b o t h i n p u t a n d o u t p u t p o r t s o n b u s - p o w e r e d h u b s , a s w e l l a s t h e i n p u t p o r t s f o r b u s - p o w e r e d f u n c t i o n s ( s e e F i g u r e 2 4 ) .

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DP1

DM1

DP2

DM2

DP3

DM3

DP4

PWRON1

OVRCUR1

PWRON2

OVRCUR2

DM4

DP0

DM0

VCC

XTAL1

XTAL2

OCSOFF

SN75240

D +

D

5 V

GND

D +

D

5 V

D +

D

5 V

D +D

5 V

48-MHz

Crystal

Downstream

Ports

TUSB2040

Hub Controller

Tuning

Circuit

A

B

C

D

33 F

SN75240

A

B

C

D

GND

GND

GND

33 F

33 F

33 F

D +

D

Upstream

Port

TPS2041B

SN75240

A

B

5 V

GND

C

D

1 F

IN

GND

Ferrite Beads

Ferrite Beads

Ferrite Beads

Ferrite Beads

BUSPWR

GANGED

Tie to TPS2041 EN Input

OC EN

OUT

5-V Power

Supply

IN

GND

3.3 V4.7 F

0.1 F

4.7 F

EN1

IN

OC1

OUT1

TPS2060

EN2

OC2

OUT2

0.1 F

GND

USB rev 1.1 requires 120 F per hub.

TPS76333

G E N E R I C H O T - P L U G A P P L I C A T I O N S

T P S 2 0 6 0 T P S 2 0 6 4



F i g u r e 2 4 . H y b r i d S e l f / B u s - P o w e r e d H u b I m p l e m e n t a t i o n

I n m a n y a p p l i c a t i o n s i t m a y b e n e c e s s a r y t o r e m o v e m o d u l e s o r p c b o a r d s w h i l e t h e m a i n u n i t i s s t i l l o p e r a t i n g . T h e s e a r e c o n s i d e r e d h o t - p l u g a p p l i c a t i o n s . S u c h i m p l e m e n t a t i o n s r e q u i r e t h e c o n t r o l o f c u r r e n t s u r g e s s e e n b y t h e m a i n p o w e r s u p p l y a n d t h e c a r d b e i n g i n s e r t e d . T h e m o s t e f f e c t i v e w a y t o c o n t r o l t h e s e s u r g e s i s t o l i m i t a n d s l o w l y r a m p t h e c u r r e n t a n d v o l t a g e b e i n g a p p l i e d t o t h e c a r d , s i m i l a r t o t h e w a y i n w h i c h a p o w e r s u p p l y n o r m a l l y t u r n s o n . D u e t o t h e c o n t r o l l e d r i s e t i m e s a n d f a l l t i m e s o f t h e T P S 2 0 6 x , t h e s e d e v i c e s c a n b e u s e d t o p r o v i d e a s o f t e r s t a r t - u p t o d e v i c e s b e i n g h o t - p l u g g e d i n t o a p o w e r e d s y s t e m . T h e U V L O f e a t u r e o f t h e T P S 2 0 6 x a l s o e n s u r e s t h a t t h e s w i t c h i s o f f a f t e r t h e c a r d h a s b e e n r e m o v e d , a n d t h a t t h e s w i t c h i s o f f d u r i n g t h e n e x t i n s e r t i o n . T h e U V L O f e a t u r e i n s u r e s a s o f t s t a r t w i t h a c o n t r o l l e d r i s e t i m e f o r e v e r y i n s e r t i o n o f t h e c a r d o r m o d u l e .

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Power

Supply

0.1 F1000 F

Optimum

2.7 V to 5.5 V

PC Board

Overcurrent Response

TPS2060

OC1GND

EN1

IN

EN2

OUT1

OUT2

OC2

Block of

Circuitry

Block of

Circuitry

D E T A I L E D D E S C R I P T I O N

P o w e r S w i t c h

C h a r g e P u m p

D r i v e r

E n a b l e ( E N x )

O v e r c u r r e n t ( O C x )

T P S 2 0 6 0 T P S 2 0 6 4



F i g u r e 2 5 . T y p i c a l H o t - P l u g I m p l e m e n t a t i o n

B y p l a c i n g t h e T P S 2 0 6 x b e t w e e n t h e V C C i n p u t a n d t h e r e s t o f t h e c i r c u i t r y , t h e i n p u t p o w e r r e a c h e s t h e s e d e v i c e s f i r s t a f t e r i n s e r t i o n . T h e t y p i c a l r i s e t i m e o f t h e s w i t c h i s a p p r o x i m a t e l y 1 m s , p r o v i d i n g a s l o w v o l t a g e r a m p a t t h e o u t p u t o f t h e d e v i c e . T h i s i m p l e m e n t a t i o n c o n t r o l s s y s t e m s u r g e c u r r e n t s a n d p r o v i d e s a

h o t - p l u g g i n g m e c h a n i s m f o r a n y d e v i c e .

T h e p o w e r s w i t c h i s a n N - c h a n n e l M O S F E T w i t h a l o w o n - s t a t e r e s i s t a n c e . C o n f i g u r e d a s a h i g h - s i d e s w i t c h , t h e p o w e r s w i t c h p r e v e n t s c u r r e n t f l o w f r o m O U T t o I N a n d I N t o O U T w h e n d i s a b l e d . T h e p o w e r s w i t c h s u p p l i e s a m i n i m u m c u r r e n t o f 1 . 5 A .

A n i n t e r n a l c h a r g e p u m p s u p p l i e s p o w e r t o t h e d r i v e r c i r c u i t a n d p r o v i d e s t h e n e c e s s a r y v o l t a g e t o p u l l t h e g a t e o f t h e M O S F E T a b o v e t h e s o u r c e . T h e c h a r g e p u m p o p e r a t e s f r o m i n p u t v o l t a g e s a s l o w a s 2 . 7 V a n d r e q u i r e s l i t t l e s u p p l y c u r r e n t .

T h e d r i v e r c o n t r o l s t h e g a t e v o l t a g e o f t h e p o w e r s w i t c h . T o l i m i t l a r g e c u r r e n t s u r g e s a n d r e d u c e t h e a s s o c i a t e d e l e c t r o m a g n e t i c i n t e r f e r e n c e ( E M I ) p r o d u c e d , t h e d r i v e r i n c o r p o r a t e s c i r c u i t r y t h a t c o n t r o l s t h e r i s e t i m e s a n d f a l l t i m e s o f t h e o u t p u t v o l t a g e .

T h e l o g i c e n a b l e d i s a b l e s t h e p o w e r s w i t c h a n d t h e b i a s f o r t h e c h a r g e p u m p , d r i v e r , a n d o t h e r c i r c u i t r y t o r e d u c e t h e s u p p l y c u r r e n t . T h e s u p p l y c u r r e n t i s r e d u c e d t o l e s s t h a n 1 A w h e n a l o g i c h i g h i s p r e s e n t o n E N x , o r w h e n a l o g i c l o w i s p r e s e n t o n E N x . A l o g i c z e r o i n p u t o n E N x , o r a l o g i c h i g h i n p u t o n E N x r e s t o r e s b i a s t o t h e d r i v e a n d c o n t r o l c i r c u i t s a n d t u r n s t h e s w i t c h o n . T h e e n a b l e i n p u t i s c o m p a t i b l e w i t h b o t h T T L a n d C M O S l o g i c l e v e l s .

T h e O C x o p e n - d r a i n o u t p u t i s a s s e r t e d ( a c t i v e l o w ) w h e n a n o v e r c u r r e n t o r o v e r t e m p e r a t u r e c o n d i t i o n i s e n c o u n t e r e d . T h e o u t p u t r e m a i n s a s s e r t e d u n t i l t h e o v e r c u r r e n t o r o v e r t e m p e r a t u r e c o n d i t i o n i s r e m o v e d . A 1 0 - m s d e g l i t c h c i r c u i t p r e v e n t s t h e O C x s i g n a l f r o m o s c i l l a t i o n o r f a l s e t r i g g e r i n g . I f a n o v e r t e m p e r a t u r e s h u t d o w n o c c u r s , t h e O C x i s a s s e r t e d i n s t a n t a n e o u s l y .

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C u r r e n t S e n s e

T h e r m a l S e n s e

U n d e r v o l t a g e L o c k o u t

T P S 2 0 6 0 T P S 2 0 6 4


D E T A I L E D D E S C R I P T I O N ( c o n t i n u e d )

A s e n s e F E T m o n i t o r s t h e c u r r e n t s u p p l i e d t o t h e l o a d . T h e s e n s e F E T m e a s u r e s c u r r e n t m o r e e f f i c i e n t l y t h a n c o n v e n t i o n a l r e s i s t a n c e m e t h o d s . W h e n a n o v e r l o a d o r s h o r t c i r c u i t i s e n c o u n t e r e d , t h e c u r r e n t - s e n s e c i r c u i t r y s e n d s a c o n t r o l s i g n a l t o t h e d r i v e r . T h e d r i v e r i n t u r n r e d u c e s t h e g a t e v o l t a g e a n d d r i v e s t h e p o w e r F E T i n t o i t s

s a t u r a t i o n r e g i o n , w h i c h s w i t c h e s t h e o u t p u t i n t o a c o n s t a n t - c u r r e n t m o d e a n d h o l d s t h e c u r r e n t c o n s t a n t w h i l e v a r y i n g t h e v o l t a g e o n t h e l o a d .

T h e T P S 2 0 6 x i m p l e m e n t s a t h e r m a l s e n s i n g t o m o n i t o r t h e o p e r a t i n g t e m p e r a t u r e o f t h e p o w e r d i s t r i b u t i o n s w i t c h . I n a n o v e r c u r r e n t o r s h o r t - c i r c u i t c o n d i t i o n t h e j u n c t i o n t e m p e r a t u r e r i s e s . W h e n t h e d i e t e m p e r a t u r e r i s e s t o a p p r o x i m a t e l y 1 4 0 C d u e t o o v e r c u r r e n t c o n d i t i o n s , t h e i n t e r n a l t h e r m a l s e n s e c i r c u i t r y t u r n s o f f t h e s w i t c h , t h u s p r e v e n t i n g t h e d e v i c e f r o m d a m a g e . H y s t e r e s i s i s b u i l t i n t o t h e t h e r m a l s e n s e , a n d a f t e r t h e d e v i c e h a s c o o l e d a p p r o x i m a t e l y 1 0 d e g r e e s , t h e s w i t c h t u r n s b a c k o n . T h e s w i t c h c o n t i n u e s t o c y c l e o f f a n d o n u n t i l t h e f a u l t i s r e m o v e d . T h e o p e n - d r a i n f a l s e r e p o r t i n g o u t p u t ( O C x ) i s a s s e r t e d ( a c t i v e l o w ) w h e n a n o v e r t e m p e r a t u r e s h u t d o w n o r o v e r c u r r e n t o c c u r s .

A v o l t a g e s e n s e c i r c u i t m o n i t o r s t h e i n p u t v o l t a g e . W h e n t h e i n p u t v o l t a g e i s b e l o w a p p r o x i m a t e l y 2 V , a c o n t r o l s i g n a l t u r n s o f f t h e p o w e r s w i t c h .

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PACKAGING INFORMATION

Orderable Device Status (1) PackageType

PackageDrawing

Pins PackageQty

Eco Plan (2) Lead/Ball Finish MSL Peak Temp(3)

TPS2060DGN ACTIVE MSOP-

PowerPAD

DGN 8 80 Green (RoHS &

no Sb/Br)

CU NIPDAU Level-1-260C-UNLIM

TPS2060DGNG4 ACTIVE MSOP-PowerPAD

DGN 8 80 Green (RoHS &no Sb/Br)


TPS2060DGNR ACTIVE MSOP-PowerPAD



TPS2060DGNRG4 ACTIVE MSOP-PowerPAD



TPS2064DGN ACTIVE MSOP-PowerPAD



TPS2064DGNG4 ACTIVE MSOP-PowerPAD

DGN 8 80 Green (RoHS &no Sb/Br) CU NIPDAU Level-1-260C-UNLIM

TPS2064DGNR ACTIVE MSOP-PowerPAD



TPS2064DGNRG4 ACTIVE MSOP-PowerPAD



(1)The marketing status values are defined as follows:

ACTIVE:Product device recommended for new designs.LIFEBUY:TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.NRND:Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part ina new design.PREVIEW:Device has been announced but is not in production. Samples may or may not be available.

OBSOLETE:TI has discontinued the production of the device.

(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS & no Sb/Br) - please checkhttp://www.ti.com/productcontentfor the latest availability information and additional product content details.TBD:The Pb-Free/Green conversion plan has not been defined.Pb-Free (RoHS):TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirementsfor all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be solderedat high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.Green (RoHS & no Sb/Br):TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flameretardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)

(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak soldertemperature.

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In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TIto Customer on an annual basis.

PACKAGE OPTION ADDENDUM

www.ti.com 17-Nov-2005

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Interface interface.ti.com Digital Control www.ti.com/digitalcontrol

Logic logic.ti.com Military www.ti.com/military

Power Mgmt power.ti.com Optical Networking www.ti.com/opticalnetwork

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