Test Procedure for the NCP1219PRINTGEVB Evaluation Board Table 1: Required Equipment *Chroma 61604 AC *Chroma 66202 Digital *Agilent 34401A Power Source Power Meter Multimeter *Agilent E3649A DC *Chroma 6314 *Agilent 34401A Power Supply Electronic Load with Multimeter *Chroma 63102 Module *Equivalent test equipment may be substituted. Test Procedure: 1. Set multimeter M1 to measure current. 2. Connect input terminal “I” of multimeter M1 to pin 3 of connector J5. 3. Connect the input terminal “LO” of multimeter M1 to the positive terminal of the electronic load. 4. Connect the negative terminal of the electronic load to pin 2 of connector J5. 5. Set multimeter M2 to measure voltage. 6. Connect the input terminal “HI” of multimeter M2 to pin 3 of connector J5. 7. Connect the input terminal “LO” of multimeter M2 to pin 2 of connector J5. 8. Connect the positive terminal of the dc power supply to pin 1 of connector J5. 9. Connect the negative terminal of the dc power supply to pin 2 of connector J5. 10. Connect the ac power source and power analyzer to connector J1 as shown in Figure 1. 11. Set the current compliance limit on the ac source to 4 A. 12. Set the ac source to 115 Vac / 60 Hz. 13. Set the electronic load to the lowest current range setting. 14. Set the electronic load to 70 mA. 15. Set the dc power supply connected to pin1 of J5 to 0 V. 16. High voltages are present on the primary side of the converter during testing. Use Caution. 17. Turn the dc source on. 18. Turn the ac source on. 19. Set the power analyzer to integrate power for 5 minutes and start the integration cycle. 20. Measure VOUT(standby) using the corresponding multimeter. Record the results in Table 4. Verify it is within the limits of Table 3. 21. Measure and the integrated PIN(standby). For some power analyzers it may be necessary to convert to PIN from W*h using the equation: W ⋅h 60minutes PIN = ⋅ = (W ⋅ h ) ⋅ 12 . 5minutes 1hour Record the results in Table 4. Verify it is within the limits of Table 3. 22. Repeat steps 19 through 21 for a line voltage of 230 Vac / 50 Hz. 23. Set the ac power source to 115 Vac / 60 Hz. 24. Set the electronic load to 1.25 A. 25. Set the dc power supply to 5 V. 26. Perform a 5 minute burn in at the line and load conditions given in steps 23 and 24. 27. Measure and the output voltage (VOUT) using the corresponding multimeter. Record the results in Table 5. Verify it is within the limits of Table 3. Revision 0 - 4/22/2009 1 of 5 www.onsemi.com 28. Measure the output current (IOUT) using the corresponding multimeter. Record the results in Table 5. 29. Measure the input power (PIN) using the power analyzer. Record the results in Table 5. ⋅V I 30. Calculate the efficiency (η) using the equationη = OUT OUT ⋅ 100% . Record the results PIN in Table 5. 31. Repeat steps 27-30 for all ac source and electronic load settings (0.01 A, 0.3125 A, 0.625 A, 0.9375 A, 1.25 A, 2.00 A) specified in Table 2. 32. Calculate the average efficiency (ηavg) using the equation: η + η 50% + η 75% + η100% , where η25%, η50%, η75%, and η100% are the η avg = 25% 4 efficiencies calculated for the 25%, 50%, 75% and 100% load conditions given in Table 2. Record the results in Table 5. Verify it is within the limits of Table 3. 33. Turn off the ac source. 34. Turn off the dc source. 35. Disconnect the ac source. 36. Disconnect the dc source. 37. Disconnect the electronic load. 38. Disconnect both multimeters. 39. End of test. Figure 1: Test Setup Revision 0 - 4/22/2009 2 of 5 www.onsemi.com Table 2: Normal Operating Conditions Input Voltage (Vac) Line Frequency (Hz) Load Current (A) 115 60 0.01 0.3125 (25%) 0.675 (50%) 0.9375 (75%) 1.25 (100%) 2.00 230 50 0.01 0.3125 (25%) 0.675 (50%) 0.9375 (75%) 1.25 (100%) 2.00 Table 3: Desired Results Input Voltage For 115 Vac / 60 Hz input For 230 Vac / 50 Hz input IOUT 70 mA 70 mA IOUT specified in Table 2 25%, 50%, 75%, 100% 70 mA 70 mA IOUT specified in Table 2 25%, 50%, 75%, 100% 7 V < VOUT(standby) < 8 V PIN < 1 W VOUT = 24 ± 0.2 V ηavg > 83.5% 7 V < VOUT(standby) < 8 V PIN < 1 W VOUT = 24 ± 0.2 V ηavg > 83.5% Table 4 - Standby Mode Measured Results Input Voltage Parameter Result 115 Vac / 60 Hz VOUT(standby) Input PIN(standby) 230 Vac / 50 Hz VOUT(standby) Input PIN(standby) Revision 0 - 4/22/2009 3 of 5 www.onsemi.com Table 5 - Normal Mode Measured and Calculated Results Input Voltage Load Current Parameter Result (A) 0.01 VOUT (V) IOUT (A) PIN (W) 0.3125 (25%) VOUT (V) IOUT (A) PIN (W) η25% 0.675 (50%) VOUT (V) IOUT (A) PIN (W) η50% 115 Vac / 60 Hz 0.9375 (75%) VOUT (V) Input IOUT (A) PIN (W) η75% 1.25 (100%) VOUT (V) IOUT (A) PIN (W) η100% 2.00 VOUT (V) IOUT (A) PIN (W) ηavg Revision 0 - 4/22/2009 4 of 5 www.onsemi.com Input Voltage 230 Vac / 50 Hz Input Revision 0 - 4/22/2009 Table 5 (continued) Load Current Parameter (A) 0.01 VOUT (V) IOUT (A) PIN (W) 0.3125 (25%) VOUT (V) IOUT (A) PIN (W) η25% 0.675 (50%) VOUT (V) IOUT (A) PIN (W) η50% 0.9375 (75%) VOUT (V) IOUT (A) PIN (W) η75% 1.25 (100%) VOUT (V) IOUT (A) PIN (W) η100% 2.00 VOUT (V) IOUT (A) PIN (W) ηavg 5 of 5 Result www.onsemi.com