
12 • Power Supply Unit
Ripple voltage +5V............... 1.0 % p-p
+3.3V............ 1.5 % p-p
+12V............. 1.0 % p-p
-12V ............. 1.0 % p-p
The testing probe
must be in parallel
wi
22µF and that of
0.1µF.
Current sharing in
parallel
Any number of power supplies can be
operated in parallel and will share
current to within 10%
only at +5V output
Load regulation The output voltage of +5V changes
within ±3% of allowed value.
Input voltage is
from 90Vac to
260Vac. Load is
from 10% to
100%.
Line regulation The output voltage of +5V changes
within ±0.1% of allowed value.
Input voltage is
from 90Vac to
260Vac. Load is
from 10% to
100%.
Hold up time >6ms
Rising time <200ms
Temperature
coefficient
0.05% / °C
Protection All outputs protected against overload
and short circuit. Straightline current
limiting, does not fold-back or latch-up
during startup or load transients.
Automatic recovery.
Shutdown at internal heatsink
temperature of 95°C. Automatic
recovery.
Shutdown at the output voltage
exceeds the nominal voltage 20%.
Recycle power to reset.
u Others
Item Specification Test Conditions
Input/output
connector
Male base is on the rear of power
supply, and must meet IEC 603-2
(DIN 41612) or IEC 1076.
Indicator Normal (green LED)
Fail (red LED)
Switching frequency
100KHz
MTBF 50,000 hours MIL-HDBK-217E
MTTR 5 minutes
EMC meets FCC and Class A of VDE
Safety specification UL 1950, CSA C22.2 NO.950,
EN60950/ TüV
CE EMI: EN61000-3-2(1995),
EN61000-3-3
harmonics
Komentáře k této Příručce