Page 8
2. Power Supply Features
l
Hot-Swappable capability
l
Internal ORing diode for Redundancy Operation
l
Dual AC input for Redundancy safety
l
Power fault alarm system
l
Fan rail with noise decreasing function
l
Standard PC connection/wiring interface
l
Meet the up-to-date ATX specification
l
Easy operating and maintain
l
MTBF (Demonstrated) greater than 100,000 hours
3.
Power Supply Specifications
3.1
Input Voltage
Parameter
Min
Nor
Max
Units
Voltage
90 VAC
115 VAC
132 VAC
Vrms
Voltage
180 VAC
230 VAC
264 VAC
Vrms
Frequency
47
63
Hz
3.2 DC Output Characteristics
3.21 Output Regulation To be met under all combinations of loading.
Output
Voltage
V1
+5V
V2
+3.3V
V3
+12V
V4
-5V
V5 -
12V
Standby
5V
Max. Load
Min. Load
30A
3A
15A
0A
12A
1A
0.5A
0A
0.5A
0A
1A
0A
Max. Power
Total 150W
144W
2.5W
6W
5W
Load Reg. %
+/-5%
+5/-3%
+/-5%
+/-10%
+/-10%
+/-5%
Line Reg. %
+/-1%
+/-1%
+/-1%
+/-1%
+/-1%
+/-1%
3.2.2 Ripple & Noise
Ripple & Noise
+5V
+3.3V
+12V
-5V
-12V
Standby
5VSB
Ripple %
+/-1%
+/-1%
+/-1%
+/-1%
+/-1%
+/-1%
Noise %
+/-1%
+/-1%
+/-1%
+/-2%
+/-2%
+/-1%
3.3
Remote Sensing
The +3.3V and +5V outputs shall have provisions for remote sensing to
compensate for 100mv of cable, connector & PCB trace drops. The default
+3.3V sensor shall be connected to pin 11 of Connector P1. The +5V sensor shall be
connected to pin 20 of Connector P1. The power supply shall draw no more
than 10mA through the remote sensor line to keep the DC offset voltage to a
minimum.
3.4 Remote ON/OFF(PS-ON)
PS-ON is an active low signal that turns on all of the main power rails,
inc3.3V,+ 5V,-5V,+12V & -12V power rails. When this signal is
held up by the PC board or is left open circuited, outputs of the power rails
should not deliver current and should be held at a zero potential with respect
to ground. Power should only be delivered to the rails if PS-ON signal is
held at ground potential. This signal should be held at +5VDC by a pull-up
resistor which is built in internally.
