M3G datasheet(13/15 Pages) IRF

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M3G-SERIES

(28V Input, Single/Dual Output)

Fig 10. Configuration for Adjusting Dual Output Voltage

For all Dual Output Models, to adjust the output voltage higher:

where: RADJ is in KOhms

RADJ is connected to -Out pin and VNOM

< VOUT < 1.1VNOM (Fig. 10, Note 2)

VNOM is the nominal output voltage with the Adjust pin left open

VOUT is the desired output voltage

For all Dual Output Models, to adjust the output voltage lower:

where: RADJ is in KOhms

RADJ is connected to +Out pin and 0.75VNOM

< VOUT < VNOM (Fig. 10, Note 1)

VNOM is the nominal output voltage with the Adjust pin left open

VOUT is the desired output voltage

The dual output models have an Adjust pin which can be connected through a resistor ( RADJ ) to either output.

This allows the outputs to be reliably adjusted by approximately +10% to -25% of the nominal output voltage.

Refer to Figure 10 and use equations provided to calculate the required resistance ( RADJ ).

Dual Output:

M3G

(Dual Output)

+Out

Adjust

Out

Return

-Out

Radj

Note 2

Note 1

Notes:

1. For Vout < Vnom

2. For Vout > Vnom

()

−

NOM

OUT

NOM

ADJ

()(

)

−

OUT

NOM

OUT

NOM

ADJ

M3G Datasheet(PDF) 13 Page - International Rectifier

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