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

48 Vdc Input

12 Vdc /12 A Output

Control Specifications

Parameter

Min

Typ

Max

Notes

Remote On/Off

Signal Low (Unit On)

-0.3 V

-

0.8 V

Signal High (Unit Off)

Active Low

2.4 V

-

18 V

When Remote On/Off pin is open,

unit is off.

Signal Low (Unit Off)

-0.3 V

-

0.8 V

Signal High (Unit On)

Active High

When Remote On/Off pin is open,

unit is on.

Current Sink

0 mA

-

1 mA

Output Trim Equations

Equations for calculating the trim resistor are shown below. The Trim Down resistor should be connected between

the Trim pin and GND pin. The Trim Up resistor should be connected between the Trim pin and the Vout pin. Only

one of the resistors should be used for any given application.

Note:

Vo_req=Desired (trimmed) output voltage [V]

Output voltage Vo=12.0 V





 

%

100

_







Vo

Vo

req

Vo

delta

 







k

delta

Rtrimdown

22

.

10

511

Module

Vout

Trim

GND

Rtrimdown

Module

Vout

Trim

GND

Rtrimup

 

















k

delta

Vo

delta

Rtrimup

22

.

10

225

.

1

626

11

.

5

)

100

(