EV1531B R0.3 EN 20170619 - joulwatt.com · BUCK CC/CV Driver Without Auxiliary Winding ®...
Transcript of EV1531B R0.3 EN 20170619 - joulwatt.com · BUCK CC/CV Driver Without Auxiliary Winding ®...
Parameters Subject to ChangeParameters Subject to ChangeParameters Subject to ChangeParameters Subject to Change Without NoticeWithout NoticeWithout NoticeWithout Notice
EV1531B JoulWatt
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FEATURES
� No auxiliary winding
� Supplied from line voltage directly
� High current accuracy of line and load
regulation
� Low output voltage ripple
� Critical conduction mode
� High efficiency over wide operating range
� Cycle-by-cycle current limit
� Short Circuit Protection
� Internal over-temperature protection
� SOP7 package
APPLICATIONS
� AC/DC Power Adapter
EVALUATION BOARD
BUCK CC/CV DriverWithout Auxiliary WindingWithout NoticeWithout NoticeWithout NoticeWithout Notice
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Supplied from line voltage directly
High current accuracy of line and load
wide operating range
temperature protection
DESCRIPTION
The JW®1531B is a constant
current driver with high accuracy.
JW1531B integrates high voltage power source,
and can be supplied from
and auxiliary winding is not needed
simplifies the system.
Low standby consumption
deep pulse frequency modulation.
conduction mode operation reduces the switching
losses and largely increases the efficiency.
JW1531B has multi-protection functions which
largely enhance the safety and reliability of the
system, including VCC over
VCC UVLO, short
pulse-by-pulse current limit and
protection.
EV1531B BUCK CC/CV Driver Auxiliary Winding
1
1531B is a constant voltage constant
with high accuracy.
JW1531B integrates high voltage power source,
from line voltage directly,
and auxiliary winding is not needed, which largely
consumption can be achieved with
deep pulse frequency modulation. Critical
onduction mode operation reduces the switching
losses and largely increases the efficiency.
protection functions which
largely enhance the safety and reliability of the
system, including VCC over-voltage protection,
circuit protection,
limit and over-temperature
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ELECTRICAL SPECIFICATIONS
Description Symbol Min Typ. Max Unit Comment
Input
Input voltage VIN 90 264 V 2 wire
Frequency fLINE 47 50/60 63 Hz
No Load Consumption (220VAC)
0.2 W
Output
Output voltage VOUT 4.90 5.0 6.10 V
Output current IOUT 450 mA
Output Ripple Voltage VRIPPLE 100 mV Set oscilloscope at 20MHz bandwidth
Total Output Power
Continuous Output Power
POUT 2.25 W
Over current Protection
IOCP 0.5 A
Efficiency η 60 %
Environmental
Conducted EMI Meets EN55022B
Ambient Temperature Ta -25 +45 ℃
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SCHEMATIC
BILL OF MATERIALS
Quantity Designator Comment Description Footprint Manufacturer Manufacturer
P/N
1 BD1 600V/1A BM10F
1 C2 1nF/16V/0603 0603C
1 C3 1uF/25V/0805 0805C
1 C4 47pF/16V/060
3
0603C
1 C5 100pF/500V/1
206
1206C
1 CE1 1uF/400V CAP-6.3
1 CE2 2.2uF/400V CAP-6.3
1 CE3 470uF/10V CAP-6
1 D1 ES2J SMA
1 F1 250V/1A 1A Fuse FU2
1 L1 3mH(6*8) L-6*8-3
1 L2 (EE10)320uH/
0.28mm*115T
EE10-4+4
1 R1 51K/1%/1206 1206R
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1 R2 18K/1%/0603 0603R
1 R3 20R/5%/1206 1206R
1 R4 510R/5%/1206 1206R
1 RL1 5.1K/5%/0805 0805R
2 RS1,RS2 0.4R/1%/1206 0805R
1 U1 JW1531B BUCK CC/CV
Driver
SOP7 Joulwatt
1 VR1 7D471 7D471-3
EV1531B
EV1531B JoulWatt
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PRINTED CIRCUIT BOARD LAYEROUT
Figure1————Top Silk Layer
Figure3————Bottom Silk
QUICK START
1. Connect the load with Vo+, Vo
2. Set the AC source to 90V ~
3. Connect the “Line” of AC source to the “L”, and “neutral” to “N”.
4. Turn on the AC source; the evaluation board starts operating in normal condition.
5. To get more information, please refer to the datasheet of
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PRINTED CIRCUIT BOARD LAYEROUT
Top Silk Layer Figure2————Top
Silk Layer Figure4————Bottom
Vo+, Vo-.
V ~264V, turn off the source.
Connect the “Line” of AC source to the “L”, and “neutral” to “N”.
Turn on the AC source; the evaluation board starts operating in normal condition.
To get more information, please refer to the datasheet of JW15
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5
Top Layer
Bottom Layer
Connect the “Line” of AC source to the “L”, and “neutral” to “N”.
Turn on the AC source; the evaluation board starts operating in normal condition.
JW1531B.
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TYPICAL PERFORMANCE CHARACTERISTICS
1. Input Characteristics
1.1 Standby Power
Pin = 0.22W @ Vin = 230V, Io = 0
1.2.1 Efficiency Curve
1.2.2 Efficiency Data
Input 100mA load 200mA load 300mA load 450mA load
90Vac 58.60% 60.67% 60.95% 61.19%
110Vac 58.82% 61.48% 62.66% 62.20%
230Vac 51.71% 57.23% 58.53% 59.88%
264Vac 51.03% 56.95% 57.59% 59.25%
2. Output Characteristics
2.1 Line regulation and load regulation
Test condition: input voltage ranges from 90Vac/60Hz~264Vac/50Hz
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Input Voltage No load 100mA
load
200mA
load
300mA
load
450mA
load
Spec. Test result
90Vac 5.72V 5.45V 5.40V 5.14V 4.99V 4.90V-6.10V Pass
110Vac 5.80V 5.47V 5.41V 5.18V 4.99V 4.90V-6.10V Pass
230Vac 5.89V 5.43V 5.38V 5.19V 4.99V 4.90V-6.10V Pass
264Vac 6.10V 5.46V 5.41V 5.26V 5.03V 4.90V-6.10V Pass
Line regulation 1% < 2% Pass
Load regulation 12% <±5%
Note: Output voltage was measured at the end of PCBA.
2.2 Output ripple and noise
Test condition: input voltage ranges from 90Vac/60Hz~264Vac/50Hz
Input voltage Ripple and noise (mV)
Test result No load Full load Spec.
90Vac 29.6mV 79mV 100mV PASS
110Vac 45mV 55mV 100mV PASS
230Vac 44mV 61mV 100mV PASS
264Vac 41.6mV 71mV 100mV PASS
Note: Ripple and noise was measured at cable end with CC 100nF/25V and EC 10uF/25V. Measurement bandwidth was
limited to 20MHz.
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2.3 Output voltage over shoot
Test condition: input voltage ranges from 90Vac/60Hz~264Vac/50Hz. Output voltage Vo is 5V. Output current Io is
0A &0.45A.
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2.4 Dynamic load response test
Test condition: input voltage ranges from 90Vac/60Hz~264Vac/50Hz
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Frefuency:50Hz; duty cycle: 50%; slew rate: 0.5A/uS; load: 0.1A->0.45A->0.1A
Input Vomin~Vomax
90Vac 4.96V~5.62V
110Vac 4.96V~5.62V
230Vac 5.00V~5.60V
264Vac 5.00V~5.60V
3. Protection function test
3.1 Short Circuit Protection
Test condition: input voltage ranges from 220Vac/50Hz. Output is short circuit condition.
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3.2 Over current protection
Test condition: input voltage ranges from 90Vac/50Hz~264Vac/50Hz
Input OCP current
90Vac 0.51A
110Vac 0.51A
230Vac 0.56A
264Vac 0.57A
4. EMI test
4.1 Conduction EMI test
Test condition: input voltage ranges from 110Vac/60Hz&230Vac/50Hz. Output voltage Vo is 5V. Output current Io is
0.45A.
5. EMS Test
5.1 1000V Surge Test
Test condition: input voltage 230Vac/50Hz. Output voltage Vo is 5V . Output current Io is 0.45A.
Surge input : +/-1000V Differential-mode
Test result: PASS.
6. Thermal Performance Test
Test condition: input voltage ranges from 115Vac/60Hz~230Vac/50Hz. Output voltage Vo is 5V. Output current Io is 0.45A.
Circuit board in the constant temperature(+55℃℃℃℃) box. Test the Temp. after 2 hours..
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Input Po Ambient JW1531B EE10 Inductor
Wire
EE10 Inductor
Core
Diode
ES2J
220Vac 5V/0.45A +55℃ 92.9℃ 86.6℃ 93.3℃ 80.7℃
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IMPORTANT NOTICE
� Joulwatt Technology Inc. reserves the right to make modifications, enhancements, improvements,
corrections or other changes without further notice to this document and any product described herein. � Any unauthorized redistribution or copy of this document for any purpose is strictly forbidden.
� Joulwatt Technology Inc. does not warrant or accept any liability whatsoever in respect of any products
purchased through unauthorized sales channel.
Copyright © 2018JW1531B Incorporated.
All rights are reserved by Joulwatt Technology Inc.