D0014：DS6631 Demo Board User Manual FEATURES Flexible Voltage Detect. 2. Wide Range, Programmable LED Voltage. 3. LED Thermal Regulation. 4. Fixed Current Operation: 20mA, 25mA, 30mA, 35mA, 40mA, 45mA and 50mA 5. Can be Paralleled for Higher Current 6. 5V to 500V Supply Voltage Range. 7. High Efficiency. 8. LED Brightness Stable. 9. No Need External Component. 10. SOP-8 Exposed pad (Heat Sink) Package. 11. Patent Pending Drive Architecture. PR DT I O D M CO O O N N T F O IO ID T N E D U N IS S T TR E IA L O IB N U L TE Y 1. ELECTRICAL SPECIFICATIONS Input Voltage 110 VAC, 220VAC Output LED Current 20mA, 25mA, 30mA, 35mA, 40mA, 45mA and 50mA PCB Size L: 55mm W: 20mm Layout Size L: 55mm W: 20mm APPLICATION CIRCUIT R2 R3 R5 R6 1 R1 BD1 C3 Fuse1 3 AC1 4 R7 R4 R8 ST VIN GND OUT S1 ADL 8 C1 2 7 2 2 MOV1 Rac R9 U1 1 3 C1 4 AC2 S2 S3 6 Q1 1 5 3 DS6631 U2 LED+ 1 2 S1 3 4 S2 ST VIN GND OUT S1 ADL S2 S3 8 C2 7 6 5 DS6631 S3 Fig.1 Application Circuit of DS6631 1 DS6631-SOP8-M11Y12-00 121101