Test Procedure for the NCP 1030EVB 08/03/2004 08/03/2004 1 www.onsemi.com Table 1: Required Equipment Equipment Dual Channel Oscilloscope Keithley 179A Multimeter or Similar Test Leads Positive and Negative Probe Leads for the Oscilloscope KIKUSUI PLZ303W Load (76V, 1A) Power Supply NCP1030 Evaluation Board Quantity 1 4 4 1 1 1 1 Test Procedure: 1. Connect the test setup as shown above. 2. Apply an input voltage, VIN = 25V across J1 and J2. 3. Check the switching waveform at scope CH1 to see whether the start-up circuit is enabled. 4. Apply an input voltage, VIN = 36 V across J1 and J2. Measure the output voltage across J4 and J3. It should be approximately 12 V. 5. Apply 175 mA loading from the electronic load after powering up the demo board. 6. Measure VIN, IIN, IOUT, VOUT. 7. Increase VIN to 80 V. The output should turn OFF. 08/03/2004 2 www.onsemi.com VIN = 36 V Table 2: Desired Results IIN = 70 mA to 80 mA VOUT = 11.1 V to 11.5 V VIN = 48 V IIN = 50 mA to 60 mA VOUT = 11.1 V to 11.5 V VIN = 76 V IIN = 30 mA to 40 mA VOUT = 11.0 V to 11.5 V 08/03/2004 3 www.onsemi.com