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

3

ISOLATED DC/DC CONVERTERS

18 Vdc - 60 Vdc Input 12 Vdc /16 A Output

Nov. 17, 2010

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

Output Specifications (continued)

Parameter

Min

Typ

Max

Unit

Notes

Output DC Current Limit

18

22

25

A

Short Circuit Surge Transient

-

-

5

A

Rise time

-

10

-

ms

30

40

ms

Enable form Vin

Turn on Time

-

30

40

ms

Enable form ON/OFF

Overshoot at Turn on

-

0

3

%

Output Capacitance

220

-

2200

uF

Added additional capacitor to

decrease ripple and transient

response value.

Transient Response

Overshoot

-

400

600

mV

Max Load

Settling Time

-

120

200

uS

Overshoot

-

400

600

mV

Max Load

Settling Time

-

120

200

uS

di/dt=0.1A/us, Vin=48Vdc, Ta=25°C,

with a 1µF ceramic capacitor and a

10uF Tantalum cap at output.

Note: All specifications are typical at nominal input, full load at 25°C unless otherwise stated.

General Specifications

Parameter

Min

Typ

Max

Unit

Notes

Efficiency

Vin=24V

Vin=48V

92.5

93

93.5

94

-

-

%

%

Io=Io, max, full load

Switching Frequency

-

280

-

kHz

Over Temperature Protection

-

125

130

°C

Over Voltage Protection

-

15.1

15.5

V

This voltage is achieved by trimming

up output slowly.

Weight

-

75

-

g

FIT

TBD

-

Calculated Per Bell Core SR-332

°C,

FIT=10

Dimensions

Inches (L × W × H)

Millimeters (L × W × H)

2.30 x 1.45 x 0.50

58.42 x 36.83 x 12.70

-

Isolation characteristics

Input to Output

-

-

1500

V

Input to Case

-

-

1500

V

Output to Case

-

-

500

V

Isolation Resistance

10M

-

-

ohm

Isolation Capacitance

-

1500

-

pF