NCP1351LEDGEVB: 20 W Constant Current LED Driver Evaluation Board

The NCP1351 controller provides for a low cost, variable frequency, flyback converter. it incorporates a very low quiescent current allowing for high value resistors to be used as a start-up circuit direct from the HV rail. The design comprises and input pi-filter, bridge rectifier (using low cost 1N4007 diodes), bulk capacitors and line inductor in filter arrangement, the power stage, rectifier diode and smoothing capacitors. Feedback is CVCC, constant current drive for the LED's with a constant voltage in the event of an open circuit output. In order to stay below IEC6100-3-2 Class C, the design has been optimized at <25 W, so assuming 80% efficiency the maximum output power is ~20 W.

Evaluation/Development Tool Information

Product	Status	Compliance	Short Description	Parts Used
NCP1351LEDGEVB	Active	Pb-free	20 W Constant Current LED Driver Evaluation Board	NCP1351BDR2G

Technical Documents

Type	Document Title	Document ID/Size	Rev
Eval Board: BOM	NCP1351LEDGEVB Bill of Materials ROHS Compliant	NCP1351LEDGEVB_BOM_ROHS.PDF - 140.0 KB	0
Eval Board: Gerber	NCP1351LEDGEVB Gerber Layout Files (Zip Format)	NCP1351LEDGEVB_GERBER.ZIP - 141.0 KB	0
Eval Board: Schematic	NCP1351LEDGEVB Schematic	NCP1351LEDGEVB_SCHEMATIC.PDF - 144.0 KB	0
Eval Board: Test Procedure	NCP1351LEDGEVB Test Procedure	NCP1351LEDGEVB_TEST_PROCEDURE.PDF - 138.0 KB	0
Eval Board: Manual	Universal Input, 20 W, LED Ballast Evaluation Board User's Manual	EVBUM2059/D - 426.0 KB	3
Video	20 W Constant Current LED Driver Evaluation Board - NCP1351LEDGEVB	WVD17578/D