Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302

7

ISOLATED DC/DC CONVERTERS

38 Vdc - 55 Vdc Input, 12 Vdc/40 A Output

Aug. 19, 2011

Bel Power, Inc. , a subsidiary of Bel Fuse, Inc.

Input Under-voltage Lockout

Transient Response Waveforms

Vin= 50V 50%-75% Load Transients

Vin= 50V 75%-50% Load Transients

Note: Transient Response at di/dt=1A/uS, with a 1µF ceramic capacitor and a 100uF AL. cap at output, Ta=25

deg C.

V1=33.5V

V2=35.5V

Input Voltage (V)

Voltage Falling

Voltage Rising

V1

V2

Under-voltage Lockout