EV1502 S3 R0 - joulwatt.com

EV1502_S3_R0 Multi-Mode Primary-Side Regulation Controller Parameters Subject to ChangeParameters Subject to ChangeParameters Subject to ChangeParameters Subject to Change Without NoticeWithout NoticeWithout NoticeWithout Notice

JW1502_S3_R0 Rev.0.1 JoulWatt®Proprietary Information Patent Protected. 1

Unauthorized Photocopy and Duplication Prohibited.

DESCRIPTION

JW®1502 is a high performance Primary Side

Regulation (PSR)controller with high precision

CV/CC control ideal for charger applications.

In CV mode, JW1502 adopts Multi Mode Control

which uses the hybrid of AM (Amplitude

Modulation) mode and (Frequency Modulation)

FM mode to improve system efficiency and

reliability. In CC mode, the IC uses PFM control

with line and load CC compensation. The IC can

achieve audio noise free operation and optimized

dynamic response. The built-in Cable Drop

Compensation (CDC) function can provide

excellent CV performance.

JW1502 integrates functions and protections of

Under Voltage Lockout (UVLO), VDD over Voltage

Protection (VDD OVP), Cycle-by-cycle Current

Limiting (OCP), Short Load Protection (SLP), Gate

Clamping, and VDD Clamping.

FEATURES

� Multi-Mode PSR Control

� Audio Noise Free Operation for PSR

� Optimized Dynamic Response for PSR

� Low Standby Power <70mW

� ±5% CC and CV Regulation � Programmable Cable Drop Compensation

(CDC) in PSR CV Mode

� Built-in AC Line & Load CC Compensation

� Build in Protections:

Short Load Protection (SLP)

On-Chip Thermal Shutdown (OTP)

Cycle-by-Cycle Current Limiting

Leading Edge Blanking (LEB)

VDD UVLO, OVP & Clamp

� SOT23-6 Package

APPLICATIONS

�� AC/DC Power Adapter

EVALUATION BOARD

EV1502_S3_R0 JoulWatt



ELECTRICAL SPECIFICATIONS

Description Symbol Min Typ. Max Unit Comment

Input

Input voltage VIN 90 264 VAC 2 wire

Frequency fLINE 47 50/60 63 Hz

No Load Consumption (230VAC) 100 mW

Output

Output voltage VOUT 4.75 5.25 V

Output current IOUT 0 4.8 A

Output Ripple Voltage VRIPPLE 100 mV Set oscilloscope at 20MHz bandwidth

Total Output Power

Continuous Output Power POUT 24 W

Over current Protection IOCP 5 A

Efficiency η 86.84 % Meet DoE VI& CoC

V5

Environmental

Conducted EMI Meets EN55022B

Ambient Temperature Ta -25 +45 ℃




SCHEMATIC

BILL OF MATERIALS

Quantity Designator Comment Description Footprint Manufacturer Manufacturer

P/N

1 BD1 ABS10 Bridge Rectifiers ABS10

2 BL1, R13 10K/5%/0805 Resistor 0805 ROYALOHM 0805J1003T5E

5 BL2, R2, R8.

R10, R14 0R/0805 Resistor 0805 ROYALOHM 0805J1003T5E

1 C1 1nF/100V/0805 Capacitor 0805

1 C2 2.2nF/1000V/12

06 Capacitor 1206

1 C3 100nF/50V/0805 Capacitor 0805

1 C4 10pF/16V/0805 Capacitor 0805

0 C5 NC Capacitor 0805

2 C6, C7 100nF/16V/0805 Capacitor 0805

1 CY1 220pF/250VAC Capacitor CY-472

1 D1 M7 Diode,1000V/1A SMA




Quantity Designator Comment Description Footprint Manufacturer Manufacturer

P/N

1 D2 A7 Diode SOD-123

2 E1, E2 22uF/400V Polarized Capacitor R.2/.4 YUNXING

1 E3 10uF/400V Polarized Capacitor R.2/.4 YUNXING

3 E4. E5, E6 680uF/6.3V Low ESR Capacitor RB.1/.3 FCON

1 E7 4.7uF/50V Polarized Capacitor RB.1/.2 YUNXING

1 F1 1A/250VAC Fuse FU2

4 L, N, V+, V- TEST_PIN SIP-2M

1 L1 0.27mH Inductor 6*8 eMEI

0 LF1 NC Choke inductor

1 Q1 SVF7N65T

(TO-220)

N-Channel

MOSFET TO-220 Silan

1 R1 10R/5%/0805 Resistor 0805 Uniohm

1 R3 100K/5%/1206 Resistor 1206 Uniohm


3 R5, R7, R18 2.2M/5%/1206 Resistor 1206 Uniohm


1 R9 4.7R/5%/0805 Resistor 0805 Uniohm

1 R11 1M/1%/0805 Resistor 0805 Uniohm



2 R16, R17 1K/5%/1206 Resistor 1206 Uniohm

1 RS1 1R/1%/1206 Resistor 1206 Uniohm

2 RS2, RS3 1.2R/1%/1206 Resistor 1206 Uniohm

1 T1 Lp=0.7mH,Np:N

s:Na=48:3:9 Transformer RM8 eMEI

1 U1 JW7700F IC SOP8 Joulwatt JW7700F

1 U2 JW1502 IC SOT23-6 Joulwatt JW1502

1 U3 UC2634 IC SOT23-6

1 U4 UC2633 IC SOT23-6

3 USB1, USB2,

USB3 USB-4P USB Connector USB-AF1

1 VR1 NC VARISTOR 7D471-6




PRINTED CIRCUIT BOARD LAYEROUT

Figure1————Top Silk Layer

Figure2————Bottom Silk Layer

Figure3————Bottom Layer

QUICK START

1. Connect the load with Vo+, Vo-.

2. Set the AC source to 90V ~264V, turn off the source.

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 JW1502.




TYPICAL PERFORMANCE CHARACTERISTICS

1. Input Characteristics

1.1 Standby Power

Input 90VAC 115VAC 230Vac 264VAC CoC V5 Test result

Standby Power 36.5mW 40.9mW 78.5mW 96.7mW 100mW OK

1.2.1 Efficiency Curve

81

82

83

84

85

86

87

88

89

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

90V 115V 230V 264V

1.2.2Efficiency Data

Input 10%

load

25%

load

50%

load

75%

load

100%

load

Average effi.

25%~100%

load

DoE VI CoC V5 Test

result

90VAC 85.35 87.49 87.31 86.61 85.96 86.84

84.05

74.05

(10% load) OK

115VAC 85.52 87.78 88.16 87.50 87.07 87.63

230VAC 83.41 86.73 87.75 87.82 87.42 87.43 84.05

264VAC 82.13 86.06 87.25 87.41 87.16 86.97

1.2.3 V-I Curve

0

1

2

3

4

5

6

0 1 2 3 4 5 6

90VAC 115VAC 230VAC 264VAC




2. Output Characteristics

2.1 Line regulation and load regulation

Test condition: input voltage ranges from 90VAC/60Hz~264VAC/50Hz.

Input Voltage No load 1/4 load 1/2 load 3/4 load Full load Spec. Test result

90VAC 5.064 4.973 5.042 5.103 5.186 4.75V-5.25V Pass

115VAC 5.069 4.973 5.047 5.104 5.188 4.75V-5.25V Pass

230VAC 5.065 4.961 5.036 5.096 5.186 4.75V-5.25V Pass

264VAC 5.065 4.958 5.027 5.090 5.185 4.75V-5.25V Pass

Line regulation 1% < 2% Pass

Load regulation 4% <±5% Pass

Note: Output voltage was measured at the end PCB.

2.2 Output ripple and noise


Input voltage Ripple and noise (mV)

Test result No load Full load Spec.

90VAC 28.8mV 82mV 100mV OK




Note: Ripple and noise was measured at cable end with CC 100nF/25V and EC 10uF/25V. Measurement bandwidth was

limited to 20MHz.




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&4.8A.

2.4 Dynamic load response test


Frefuency:25Hz; duty cycle: 50%; slew rate: 0.5A/μs; load: 0.48A->4.32A->0.48A.

Input Vomin~Vomax

90VAC 4.74V~5.42V

115VAC 4.70V~5.46V

230VAC 4.62V~5.46V

264VAC 4.66V~5.46V




2.5 Turn on delay, output rise time and output fall time

Test condition: input voltage ranges from 90VAC/60Hz~264VAC/50Hz.Output voltage Vo is 5V. Output current Io is 4.8A.

Item Input Meas. data

Turn on delay 100VAC 4.49s

240VAC 1.68s

Output rise time 100VAC 10.4ms

240VAC 11.3ms

Output fall time 100VAC 5.24ms

240VAC 5.60ms




3. Protection function test

3.1 VDD over voltage protection


Input VDD @ OVP Protection

90VAC 30V

115VAC 30V

230VAC 30V

264VAC 30V

3.2 Short circuit protection

Test condition: input voltage ranges from 90VAC/60Hz~264VAC/50Hz. Output is short circuit condition.




3.3 Over current protection


Input OCP current

90VAC 5.012A

115VAC 5.016A

230VAC 5.120A

264VAC 5.166A

3.4 Short circuit current


CH4:IO

Condition:

Vin=90VAC

CH4:IO

Condition:

Vin=264VAC

4. Primary side power MOSfet and second side SR stress test

4.1Primary side power MOSfet stress test


Input Condition VDS_MAX

264VAC Start up 546V

264VAC Full load (steady state) 546V

264VAC Output short circuit 490V




4.2 SR stress test


Input Condition VSW_MAX

264VAC Start up 27V

264VAC Full load (steady state) 27V

264VAC Output short circuit 21.8V




5. EMItest

5.1 Conduction EMI test

Test condition: input voltage ranges from 115VAC/60Hz&230VAC/50Hz.Output voltage Vo is 5V. Output current Io is 4.8A.

6. Thermal Performance Test


Circuit board in the constant temperature(+45℃℃℃℃) box. Test the efficiency after 30 minutes’ burn in. Input Po

Ambient

(℃) Primary side

MOSfet (℃) Second side

SR(℃) TWINDING

(℃) TCORE

(℃) 90VAC 5V/4.8A +45 92.6 89.2 90.5 89.3

264VAC 5V/4.8A +45 86.1 91.2 91.2 90.1




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.

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EV1502 S3 R0 - joulwatt.com