Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.5 Vdc/16 A Output
Remote On/Off
For Active High Modules (Positive Logic)
When the transistor Q1 is in the Off state, the power module is ON.
When the transistor Q1 is turned On, the power module is OFF.
For Active Low Modules (Negative Logic)
When the transistor Q1 is in the Off state, the power module is OFF.
When the transistor Q1 is turned On, the power module is ON.
Output Trim Equations
Equation for calculating the trim resistor given the desired output voltage (Vo) is shown below. The Trim Up
resistor should be connected between the Trim pin and Ground.
()
Ω−
−
= 1000
7525.0
10500
Vo
R
trim
Vo (V) Rtrim (KΩ)
0.7525 Open
1.2 22.46
1.5 13.05
1.8 9.024
2.5 5.009
3.3 3.122
5.0 1.472
Rtrim
Module
Vout
GND
Sense
trim
Remot e On/Off
GND
Vin
Q1
GND
Vin
Module
R
Remote On/Off
GND
Vin
Q1
GND
Vin
Modu le
