Datasheet

2
3
Specifications:
1.0 INPUT:
1.1. VOLTAGE
1.2 FREQUENCY
47Hz ~ 63Hz
1.3 CURRENT
1.4 INRUSH CURRENT
115V/50A(max.), 230V/80A(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
RANGE MINIMUM NOMINAL MAXIMUM UNITS
1 90 115 135 VRMS
2 180 230 265 VRMS
115V 230V
TRUE330 7A 4A
TRUE380 8A 5A
TRUE430 9A 5A
TRUE480 12A 6A
TRUE550 12A 6A
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 1.5A 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)
TOTAL MAX. +5V,+12V & +3.3V
OUTPUT MAX. OUTPUT
TRUE330 330W 310W
TRUE380 380W 360W
TRUE430 430W 410W
TRUE480 480W 460W
TRUE550 550W 530W
2) Peak surge current: 15 sec max.
Measurements shall be made with an oscilloscope with 20MHz bandwidth. 10uF elec
trolytic 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
0.1A/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
SENSE LEVEL OVER VOLTAGE
+5V 6.5V/max.
+12V 15.6V/max.
+3.3V 4.1V/max.