Distribution Service Elmos Support

More information: www.elmos.com

002-

10/

2014

Channel Microelectronic GmbH

Alleenstr. 29/3 | 73730 Esslingen (Germany)

Phone: +49 (0) 711 / 93 07 21-30 | Fax: +49 (0) 711 / 93 07 21-40

info@channel-microelectronic.de | www.channel-microelectronic.de

MEV Elektronik Service GmbH

Nordel 5a | 49176 Hilter a.T.W. (Germany)

Phone: +49 (0) 5424 / 23 40-0 | Fax: +49 (0) 5424 / 23 40-40

info@mev-elektronik.com | www.mev-elektronik.com

SILICA (An Avnet Company)

Gruber Strasse 60c | 85586 Poing (Germany)

Phone: +49 (0)8121 / 777 02 | Fax: +49 (0)8121 / 777 531

marketing@silica.com | www.silica.com

Mostyle Corporation

sgold@mostyle.com.tw | www.mostyle.com.tw

Mouser Electronics, Inc. (Catalog- and Online-Distribution)

sales@mouser.com | www.mouser.com

MUJIN Electronics. Co., Ltd.

jkkim@mujin.co.kr | www. mujin.co.kr

Sensors & Solutions Co. Ltd. (SNS)

mail@sensol.co.kr | www.sensol.co.kr

Technokey Co. Ltd. (Hong Kong)

king.chow@technokey.com | www.technokey.com

Tokai Electronics Co., Ltd.

info@tokai-ele.co.jp | www.tokai-ele.co.jp

Vitec Co., Ltd.

elmos_info@vitec.co.jp | www. vitec.co.jp

WT Microelectronics Co., Ltd.

jerrychang@wtmec.com | www.wtmec.com

Headquarters Elmos Semiconductor AG

Heinrich-Hertz-Str. 1 | 44227 Dortmund (Germany)

Phone: +49 (0) 231 / 75 49-100 | sales-germany@elmos.com

www.elmos.com

Sales and Application Support Office North America Elmos NA Inc.

32255 Northwestern Highway, Suite 220 | Farmington Hills,

MI 48334 (United States)

Phone: +1 (0) 248 / 8 65 32 00 | sales-usa@elmos.com

Sales and Application Support Office China Elmos Semiconductor Technology (Shanghai) Co., Ltd.

Unit 16B, 16F Zhao Feng World Trade Building, No. 369 Jiang Su Road,

Chang Ning District, Shanghai, P.R. China, 200050

Phone: +86 (0) 21 / 62 10 09 08 | sales-china@elmos.com

Sales and Application Support Office Korea Elmos Korea Co., Ltd.

B-1007, U-Space 2, #670 Daewangpangyo-ro, Sampyoung-dong,

Bunddang-gu, Sungnam-si Kyounggi-do | 463-400 Republic of Korea

Phone: +82 (0) 31 / 7 14 11 31 | sales-korea@elmos.com

Sales and Application Support Office Japan Elmos Japan K.K.

BR Shibaura N Bldg. 7F | 3-20-9 Shibaura, Minato-ku

Tokyo 108-0023 Japan

Phone: +81 3 / 3451-7101 | sales-japan@elmos.com

Sales and Application Support Office Singapore Elmos Semiconductor Singapore Pte Ltd.

3A International Business Park | #09-13 ICON@IBP, Singapore 609935

Phone: +65 (0) 690 / 8 12 61 | sales-singapore@elmos.com

Your Local Partner

E522.41 | Automotive USB Power & ProtectSolutions for better Infotainment Systems

USB 2.0 compatible power supply

EN CHDRSW1/2

GND

SUP

E522.41

VDD

SDAI2C interface pins arereused for fixed 3Bithard coded setup pins

LX1LX2CS

BUSOptional ESDClamp

USBConnector

VBUS

VBAT

GND

D+D-GND

CMP

PD+PD-

CCHDR

CCMP2

CVDDCIN

CCMP1

CBUS

RS 5.1V@2.5A

D1

L1

RCMP

RDM_D-

UDM_D-

SCLADR

INTB

D+

D-

RDM_D+

UDM_D+

Interrupt request output

Fixed system activateinput

USB2.0 Data comm. (+)

USB2.0 Data comm. (-)

Optional coding networkfor DCP or individualUSB chargers insteadof Data Communicationwith USB host

ADR CHDRSW1/2

GND

SUP

E522.41SDAI2C communication input

VDDLX1LX2CS

BUSOptional ESDClamp

USBConnector

VBUS

VBAT

GND

D+D-GND

CMP

PD+PD-

CCHDR

CCMP2

CVDDCIN

CCMP1

CBUS

RS 5.1V@2.5A

D1

L1

RCMP

SCLINTB

EN

D+

D-

Microprocessor supply

I2C communication inputInterrupt request outputSystem activate inputSynchronizing frequency

I2C address selectioninput

USB2.0 Data comm. (+)

USB2.0 Data comm. (-)

Automotive USB Power & Protect with ext. Microcontroller | E522.41

E522.41 | Demoboard

Stand-Alone Automotive USB Power & Protect | E522.41

Key Features

� Wide input voltage range from 6V to 32V (tran. 42V)

� Fixed frequency Step-Down converter with selectable

center frequency 250kHz, 500kHz, 1MHz or 2MHz

� Advanced PWM voltage regulation loop with 100% duty cycle capability

� Fixed 5V±3% USB BUS voltage, with seven programmable

negative resistance adjustments

� Programmable USB corresponding output currents of

0.5/1A/1.5A/2.5A with fixed limits or regulation

� ±25% synchronizable to center frequencies

� USB 2.0 high speed compatible data line switches

� Wake-on USB functionality

� Adjustable for SDP or BC1.2 CDP downstream loads and DCP

or individual USB chargers

� Full automotive qualification AEC-Q 100

� Thermally efficient QFN20L5 package operational up to 105°C ambient

Brief Functional DescribtionThe E522.41 is a USB 2.0 compatible power supply with protection

features for the automotive environment. Protection includes

ISO7637 pulses on the input, as well as short to battery/ground

and 2kV ESD (HBM) on the USB bus and data lines.

An I2C interface allows system setup and diagnostics in real time via

external microprocessor. Three different I2C bus system addresses

are decoded by pin ADR.

An internal Switch-Mode Power Supply (SMPS) provides efficient

USB 5V supply from either vehicle battery or a lower voltage bus rail.

Selectable soft power-up sequence protects the external parts from

overload and reduces inrush currents. The switching frequency can

be synchronized in Master-Slave configurations with other devices

via PLL input. In addition the switchable spread spectrum option

reduces EMI.

The E522.41 supports USB charging downstream loads according

to the Battery Charging Specification Revision 1.2 and various other

specific USB charger emulations.

Compensation of current induced wire losses along the USB cableThe E522.41 implements two different strategies to prevent

brown-out at the USB receptacle. The output voltage can be raised

to a higher fixed level, or it can track the load current.

1. BUS can be raised to the maximum specified level of typ. 5.15V.

2. Negative Resistance Programming (NRP) implements a current

dependent voltage gain on BUS.

Application parameters VBUS and IOUT can be checked by an

external microcontroller during operation via I2C and the voltage gain

corrected without BUS reset.

Automotive Robustness Features The E522.41 has been especially designed with automotive

robustness requirements in mind:

� Open drain output flag INTB signals system errors an warnings

and can be used as an interrupt by an external microcontroller

� A set of maskable, internal warning or interrupt events indicate

critical system conditions

� The supply voltage SUP, SW and BUS is monitored for over and

under-voltage. Observation of reference voltage and temperature

protection.

� The internal high-side switch is independently short-circuit

protected, to prevent a short in the external freewheeling diode.

Gate-voltage monitoring of the switching FET issues a warning in

case of critically low system voltage.

� Short to GND and VBAT protection for BUS and data lines.

� To protect against VBUS overvoltage in case of an open circuit at

the current sense resistor, an internal bypass resistor will limit the

output voltage.

� The SMPS supports an active discharge current of the external

VBUS capacitor to provide a safe power-down function.

This allows an active BUS reset for the portable device or change

of the port characteristics.