Bel Fuse Inc.

206 Van Vorst Street, Jersey City, NJ 07302

8

NON-ISOLATED DC/DC CONVERTERS

6.5 Vdc - 13.2 Vdc Input, 1.2 Vdc - 2.1 Vdc Output

Aug. 12, 2010

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

Remote Sense

This module has remote sense compensation feature. It can minimize the effects of resistance between

module’s output and load in system layout and facilitates accurate voltage regulation at load terminals or

other selected point.

1. The remote sense lines carries very little current and hence do not require a large cross-sectional area.

2. This module compensates for a maximum drop of 10% of the nominal output voltage.

3. If the unit is already trimmed up, the available remote sense compensation range should be

correspondingly reduced. The total voltage increased by trim and remote sense should not exceed 10%

of the nominal output voltage.

4. When using remote sense compensation, all the resistance, parasitic inductance and capacitance of the

system are incorporated within the feedback loop of this module. It can make an effect on the module's

compensation, affecting the stability and dynamic response.

A 0.1uF ceramic capacitor can be

connected at the point of load to de-couple noise on the sense wires.

5. Recommend the connection of remote sense compensation as below figure. There are a resistor RS+

(51.1 ohm) from Vo+ to Sense+ and a resistor RS- (51.1 ohm)) from Vo- to Sense- inside of this module.

6. If not using remote sense compensation, please connect sense directly to output at module's pin, that is,

connect sense+ to Vo+ and sense- to Vo- at module's pin, the shorter the better. See below figure.

Sense+

Sense-

Vo-

Vo+

Load

Sense+

Sense-

Vo-

Vo+

Load