ABC400 datasheet(7/11 Pages) BEL

7 / 11 page

ABC400 Series

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Figure 13:Load transient Vo (500μs/div), 8.5A <-> 17A 2A/μs

CH1: Vo (200mV/div) CH2: Io (5.0 A/div)

Figure 14:Load transient Vo (1.0ms/div), 8.5A <-> 17A, 2A/μs

CH1: Vo (200 mV/div) CH2: Io (5 A/div)

PARAMETER

CONDITIONS / DESCRIPTION

MIN

NOM

MAX

UNIT

Input Fuses (L only)

Not user accessible, time lag characteristic

8.0

Vo ov

OV Threshold

ABC400-1012G

14.0

16.0

VDC

ABC400-1024G

28.0

32.0

VDC

ABC400-1048G

VDC

Io lim

Current Limit

Vi > 90 VAC, -10 °C <Ta < 50 °C

ABC400-1012G

31.5

33.0

39.0

ABC400-1024G

20.0

21.0

23.0

ABC400-1048G

8.9

11.1

TSD

Over Temperature on Heat Sinks

Automatic shut-down

100

°C

OVERVOLTAGE PROTECTION

The AC-DC power supply provides a fixed threshold overvoltage (OV) protection implemented with a HW comparator. Once

an OV condition has been triggered, the supply will shut down and latch the fault condition. the latch can be unlocked by

disconnecting the supply from the AC mains only.

CURRENT LIMITATION

The main output current limitation will decrease with linear derating to 50% at 70 ºC if the ambient (inlet) temperature increases

beyond 50 °C (see

Figure 15).

Figure 15: Output Current Limitation Curve

100

120

-10

Ambient Temperature(°C)

Series1

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