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

• Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

ISOLATED DC/DC CONVERTERS

36 - 75 Vdc Input

1.2 Vdc /100 A Output

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

1.176 V

1.2 V

1.224 V

Load Regulation

-

5 mV

10 mV

Vin=36-75 V, full load

Line Regulation

-

2 mV

5 mV

Vin=48 V, Iout=0-120 A

Regulation Over Temperature

(-40deg.C-85deg.C)

-

-

0.01%Vo/C

Output Current Range

0 A

-

100 A

Output DC Current Limit

110 A

120 A

130 A

Ripple and Noise (rms)

-

15 mV

30 mV

Ripple and Noise (pk-pk)

-

50 mV

100 mV

0 - 20 MHz BW, with a 10 uF

ceramic cap and a 330 uF tantalum

cap at output

4 mS

8 mS

Power up

Rise time

4 mS

8 mS

Remote on/off

70 mS

100 mS

Power up

Start-up time

-

70 mS

100 mS

Remote on/off

Overshoot at Turn on

-

-

3%

Output Capacitance

0 uF

-

400,000 uF

Transient Response

Overshoot

-

80 mV

150 mV

50% ~ 75%

Max Load

Settling Time

-

200 uS

300 uS

Overshoot

-

80 mV

150 mV

75% ~ 50%

Max Load

Settling Time

-

200 uS

300 uS

di/dt=0.1A/us, Vin=48 Vdc,

Ta=25 °C.

General Specifications

Parameter

Min

Typ

Max

Notes

Efficiency

-

87%

-

Switching Frequency

290 kHz

310 kHz

330 kHz

Input to Output Isolation Voltage

1500 V

-

-

Isolation Capacitance

-

1500 pF

-

Isolation Resistance

10 Mohm

-

-

Output Voltage Protection

1.40 V

-

1.54 V

Hiccup Mode

Remote Sense Compensation

-

-

10%Vo

Output Voltage Trim Range

80%Vo

-

110%Vo

The total voltage increased by trim and

remote sense should not exceed 10%Vo.

Over Temperature Protection

-

120

°C

-

No Latch; PCB Temperature

MTBF

TBD

Calculated Per Bell Core SR-332 (Vin=48

°C)

Dimensions

Inches

millimeters

2.30 x 1.45 x 0.500

58.42 x 36.83 x 12.70

Weight

-

60.7 g

-