M3G70_15 Datasheet, PDF (11/13 Pages) International Rectifier – 70V Input, Single/Dual Output

M3G-SERIES
(70V Input, Single/Dual Output)
Dual Output:
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 5 and use equations provided to calculate the required resistance ( RADJ ).
Fig 5. Configuration for Adjusting Dual Output Voltage
Note 1
+Out 13
Out
Return
12
M3G
(Dual Output)
-Out 11
Note 2
Notes:
1. For Vout < Vnom
2. For Vout > Vnom
Radj
Adjust ₈
For all Dual Output Models, to adjust the output voltage higher:
( ) _RADJ
=
3.48 1.64V_NOM − 1
V_OUT − V_NOM
− 51
where: RADJ is in KOhms
RADJ is connected to -Out pin and VNOM < VOUT < 1.1VNOM (Fig. 5, 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:
R_ADJ
=
3.48
(1.64V_NOM − 1)(1.64V_OUT
V_NOM − V_OUT
− 1)
− 51
where: RADJ is in KOhms
RADJ is connected to +Out pin and 0.75VNOM < VOUT < VNOM (Fig. 5, Note 1)
VNOM is the nominal output voltage with the Adjust pin left open
VOUT is the desired output voltage
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