Test Procedure for the NCP1216 Buck Led Board LedA AC1 V1 169.71V 120.00V_rms 60Hz 0Deg A Led1 High_Brightness_Led AC2 Led2 High_Brightness_Led LedK Led3 High_Brightness_Led Led4 High_Brightness_Led Necessary Equipment: Test Procedure: Isolated Variable AC supply DC Amp meter Six 3W Leds Output current can be reduced by removing some of the 5.1ohm parallel resistors (R1-R5) 1. 2. 3. 4. 5. 6. 7. Connect test setup as shown Apply input voltage 120Vac Supply current ~ 150ma Check that Leds light Current in Led String ~650ma Power down the input voltage End of test Led5 High_Brightness_Led Led6 High_Brightness_Led 12/13/2007 www.onsemi.com