© 2011 Fairchild Semiconductor Corporation
6
FEBFSB127H_T001 • Rev. 1.0.0
5.
Test Results
5.1.
Brown-in / Brownout
5.1.1.
Test Condition
Decrease input AC voltage gradually and measure the turn-off threshold.
After DC power off, increase input voltage and measure the recovery threshold.
5.1.2.
Test Result
R
HV
=200k
Ω
Minimum Load
Maximum Load
Turn off
70 V
AC
68
V
AC
Turn on
81 V
AC
81
V
AC
5.2.
AC Trim Up and Trim Down
5.2.1.
Test Condition
Switch the input voltage from 90V to 264V or from 264V to 90V; the output voltages
should be normal.
5.2.2.
Test Result
Minimum Load
Maximum Load
90V
264V Pass
Pass
264V
90V Pass
Pass
5.3.
Line and Load Regulation
5.3.1.
Test Condition
Line regulation: 1% maximum.
Load regulation: 5% maximum.
5.3.2.
Test Result
Input Voltage
Max. Load
Min. Load
Load Regulation (%)
90V / 60Hz
4.971V
5.013V
0.84%
264V / 50Hz
4.988V
5.013V
Line Regulation (%)
0.34%
0%
