Test Procedure for the NCL30002DIM2GEVB Evaluation Board Overview This procedure describes the calibration and functional testing of the high power factor NCL30002 buck LED driver. There are 4 versions covered by this test procedure. Non Dimming Dimming 120V ac Nominal Mains NCL30002LED1GEVB NCL30002DIM1GEVB 230V ac Nominal Mains NCL30002LED2GEVB NCL30002DIM2GEVB Basic Specifications Input Voltage – 100 V ac to 132 V ac or 200V ac to 265V ac Input Frequency – 50/60 Hz Output Voltage – 22 V dc to 26 V dc Output Current –750 mA dc Nominal 11/12/2012 -1- www.onsemi.com Equipment Needed AC Source – 100V ac to 265 V ac 50/60 Hz Minimum 1A ac capability AC Wattmeter – 30W Minimum, True RMS Input Voltage and Current, Power Factor 0.2% accuracy or better DC Voltmeter – 30V dc minimum 0.1% accuracy or better DC Ammeter – 1A dc minimum 0.1% accuracy or better LED Load – 24 V dc nominal (8 LEDs) rated for at least 750 mA dc operation Calibration Procedure 1. Connect the Unit Under Test (UUT) per the test set up in Figure 1 2. AC Power Source AC Wattmeter UUT DC Ammeter DC LED Test Load Voltmeter Figure 1 Test Set Up 3. Set the AC source to 120V ±1V ac RMS 60 Hz or 230V ±2V ac RMS 50 Hz. 4. Adjust R17 such that the output current at 100 V ac and 132 V ac or 200 V ac and 265 V ac are equal or as close as adjustment allows. Note: Unless otherwise specified, all voltage measurements are taken at the terminals of the UUT. 11/12/2012 -2- www.onsemi.com Functional Test Procedure NCL30002LED1GEVB / NCL30002DIM1GEVB 120V ac Nominal Connect the UUT per figure 1 Test Condition Test Variable Vin = 120V ac Vin = 100V ac Vin = 132V ac Vin = 120V ac Output Current Output Current Output Current Power Factor Non Dimming Efficiency1 Dimming2 Efficiency1 Vin = 120V ac Vout = 24V Test Limits Min 713mA 713mA 713mA 0.9 Max 788mA 788mA 788mA - Pass / Fail (Circle One) Pass / Fail Pass / Fail Pass / Fail Pass / Fail 88% - Pass / Fail 83% - Pass / Fail Min 713mA 713mA 713mA 0.9 Max 788mA 788mA 788mA - Pass / Fail (Circle One) Pass / Fail Pass / Fail Pass / Fail Pass / Fail 88% - Pass / Fail 83% - Pass / Fail NCL30002DIM2GEVB / NCL30002LED2GEVB 230V ac Nominal Connect the UUT per figure 1 Test Condition Test Variable Vin = 230V ac Vin = 200V ac Vin = 265V ac Vin = 230V ac Output Current Output Current Output Current Power Factor Non Dimming Efficiency1 Dimming2 Efficiency1 Vin = 230V ac Vout =24V 1. Efficiency = Test Limits × 100% 2. This measurement is taken without a dimmer in series. Dimming Operation NCL30002DIM1GEVB / NCL30002DIM2GEVB Only 1. Operate the driver through the dimmer on the LED load at nominal line over the full range of the dimmer. Verify that the LEDs dim smoothly over the full range of control. 11/12/2012 -3- www.onsemi.com