Datasheet

Switching Power Supply Specifications
Page
5
3. Output characteristics
3.1 Normal Operation Output
Output
Voltage
Load
MIN
Range
MAX
Regulation
Ripple P-P
Max.
Ripple & Noise
P-P Max.
1. +5V 0.2A 22.0A
±5%
70mV 100mV
2. +12V 0.6A 54.0A
±5%
120mV 200mV
3. –12V 0.0A 0.3A
±10%
150mV 200mV
4. +5Vs 0.0A 3.0A
±5%
70mV 100mV
5. +3.3V 0.1A 22.0A
±5%
70mV 100mV
z Maximum continuous total DC output power should not exceed 750W.
z Maximum continuous combined load on +3.3VDC and +5VDC outputs shall not exceed 130W.
z Maximum combined load on 12V outputs shall not exceed 648W.
NOTE:
Noise test should be measured with 20 MHz bandwidth frequency oscilloscope. The output terminal
shall add a tantalum capacitor of 10uF in parallel with a ceramic capacitor of 0.1uF.
3.2 Remote On/Off Controlled mode
The PSON# signal is required to remotely turn on/off the power supply, PSON# is an active
low signal that turns on the output power rails. When this is not pulled low by the system,
or left open, the outputs (except the +5VSB) turn off. This signal is pulled to a standby
voltage by a pull-up resistor internal to the power supply.
TTL level "H" 2.0 V - 5.25 V
"L" 0.0 V – 1.0 V
3.3 Regulation
The cross regulation defined as follows, the output regulation should be within the specified
range.
Load +5V +3.3V +12V -12V
+5Vsb
Light Load. 2.95A 2.95A 10.16A
0.06A
0.56A
Typical Load 7.37A 7.37A 25.42A 0.14A
1.41A
Full Load 14.75A 14.75A 50.84A 0.28 A 2.82A
3.4 Rise Time
DC output rise time is less than 20 mS at nominal line and full load.
3.5 Hold-up Time
DC +5V output maintains at least 12mS after power off which hold within para 3.1 under
115V/60Hz and 230V/50Hz condition.