ON Semiconductor NCP1027ATXGEVB Reference guide

Test Procedure for the NCP1027ATXGEVB
04/20/2006
Figure 1: Test Setup

Table 1: Required Equipment
ac Power Supply, 85 Vac – 265
Vac, 1 A Yokogawa Power Meter WT210 Multimeter
Electronic Load, 5 V up to 3 A NCP1027ATX Evaluation Board
Test Procedure:
1. Connect the test setup as shown in Figure 1.
2. Apply an input voltage, 85 Vac < VIN < 265 Vac, 50 Hz or 60 Hz.
3. Connect electronic load to output connector.
4. Test the conditions given in Table 2.

Table 2: Desired Results
Measurments Conditions Results Comments
1 Output Voltage
VIN = 100 Vac,
no load VOUT = 5 V ± 5%
2 Input consumption at
high line and no load
VIN = 230 Vac,
no load
PIN = 0.09 W ± 15%,
VOUT = 5 V
No load measurment can
fluctuate, run WT210 in
average mode
3
Input consumption at
high line line and low
load
VIN= 230 Vac,
Iload= 0.1 A
PIN = 0.83 W ± 10%
VOUT = 5 V
POUT = 0.5 W
4 Output voltage at high
line and full load
VIN = 230 Vac,
Iload = 2.5 A VOUT = 5 V ± 5%
5 Output voltage at low
line and full load
VIN = 85 Vac,
Iload = 2.5 A VOUT = 5 V ± 5%
6 Brownout detection
VIN ↓until VOUT = 0 V,
IOUT = 2 A VIN = 56 Vac ± 15%
Output voltage must
collapse under 56 Vac
7 Maximum output at low
line
VIN = 85 Vac,
IOUT ↑P
OUTmax = 14 W ± 15%
Output voltage must
collapse above 14 W
8 Maximum output at high
line
VIN = 230 Vac,
IOUT ↑P
OUTmax = 18 W ± 15%
Output voltage must
collapse above 18 W