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TECHNICAL DATASHEET
PMT Panel Mount Power Supply
4.2V 252W 1 Phase / PMT-4V350W1A
Functions
Start-up Time
The time required for the output voltage to reach 90% of its set value, after the input voltage is applied.
Rise Time
The time required for the output voltage to change from 10% to 90% of its set value.
Hold-up Time
Hold up time is the time when the AC input collapses and output voltage retains regulation for a certain period of time. The time
required for the output to reach 95% of its set value, after the input voltage is removed.
■ Graph illustrating the Start-up Time, Rise Time, and Hold-up Time
Inrush Current
Inrush current is the peak, instantaneous, input current measured
and, occurs when the input voltage is first applied. For AC input
voltages, the maximum peak value of inrush current will occur
during the first half cycle of the applied AC voltage. This peak
value decreases exponentially during subsequent cycles of AC
voltage.
All parameters are specified at 25°C ambient unless otherwise indicated.
11
www.DeltaPSU.com (October 2014, Rev. 02)
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Dynamic Response
The power supply output voltage will remain within ±1000mVpp of
its steady state value, when subjected to a dynamic load from
10 to 50% and 50 to 100% of its rated current.
10 to 50% Load
50 to 100% Load
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