1.2 FREQUENCY
47Hz ~ 63Hz
1.3 CURRENT:
1.4 INRUSH CURRENT
115V/60A(max.), 230V/100A(max.) at 25°C cold start
1.5 POWER EFFICIENCY
68% (min.) at full load, 115/230Vac 60Hz/50Hz
2.0 OUTPUT:
Note:
1) The continuous maximum total output power
VOLTAGE +5V +12V +3.3V -5V -12V +5VSB
MAX. LOAD
TRUE330 30A 17A 28A 0.5A 1.0A 2.0A
TRUE380 35A 18A 28A 0.5A 1.0A 2.0A
TRUE430 36A 20A 28A 0.5A 1.0A 2.0A
TRUE480 38A 22A 30A 0.5A 1.0A 2.0A
TRUE550 40A 24A 32A 0.5A 1.0A 2.0A
MIN. LOAD 0A 0.8A 0A 0A 0A 0A
REGULATION ±3% ±3% ±3% ±5% ±5% ±5%
RIPPLE & NOISE 50 120 50 50 120 50
(mV)
2) Peak surge current: 15 sec max. Measurements shall be made with an
oscilloscope with 20MHz bandwidth. 10uF electrolytic capacitor parallel
0.1uF ceramic capacitor to simulate system loading to measure it.
3) At peak load +12V output regulation +/-10%.
2.1 HOLD-UP TIME: 20ms (minimum)
Test Condition: Full load. AC input 115V or 230V, 60Hz or 50Hz
2.2 LOAD TRANSIENT RESPONSE (STEP LOAD)
Step load changes up to 20% of full load, while other loads remains constant within the
rating. The load waveform shall be a square wave with the slope of the rise and fall at
1A/usec and the frequency shall be from 10Hz to 1 kHz. The DC output voltage will
stay within regulation during the step load changes.
2.3 OVERSHOOT
Overshoot at turn on or turn off shall be less than 10% of the nominal output voltage.
3.0 PROTECTION:
If the power supply latches into shutdown stage (when over current, over voltage or short circuit
protection is working), the power supply shall return to normal operation only after the fault has
been removed and PS-ON is reset for a minimum of 1 Second or remove AC power is removed
and re-applied.
3.1 OVER CURRENT PROTECTION
Overload currents applied to each tested output rail will cause output trip
before they reach or exceed 110% ~ 150% for testing purposes. Overload currents
should be ramped at a minimum rate of 10 A/s starting from full load.
3.2 OVER VOLTAGE PROTECTION
3.3 SHORT CIRCUIT PROTECTION
All output to GND.
4.0 TIME SEQUENCE:
T1 Turn On Time (500ms max.)
T2 Output Voltage Sequencing (20ms max.)
T3 Power Good Delay Time (100ms < t3 <500ms)
T4 Power Fail Delay Time (1ms min.)
T5 Power Good Hold-Up time (20ms min)
115V/230V(FULL LOAD): 1ms minimum
115V 230V
TRUE330 8A 4A
TRUE380 10A 5A
TRUE430 10A 5A
TRUE480 12A 6A
TRUE550 12A 6A
TOTAL MAX. +5V, +12V & +3.3V
OUTPUT MAX. OUTPUT
TRUE330 330W 310W
TRUE380 380W 360W
TRUE430 430W 410W
TRUE480 480W 460W
TRUE550 550W 530W
SENSE LEVEL OVER VOLTAGE
+5V 6.5V/max.
+12V 14.4V/max.
+3.3V 4.1V/max.
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