MB3782(1994) 데이터 시트보기 (PDF) - Fujitsu

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MB3782
(Rev.:1994)

Switching Regulator Controller

Fujitsu 

MB3782

s TREATMENT OF UNUSED ERROR AMPS

Any error amps that are not used should be handled as follows.

Note that failure to apply proper treatment to error amps will cause the SCP circuit to activate and disable the

switching regulator output.

1. Error Amp (channel 1) Not In Use

1 VREF

3 RT

4 + IN1

5 – IN1

7 DTC1

9 GND

Note: Pin 6 and pin 8 shoud be left open.

2. Error Amp (channel 2) Not In Use

1 VREF

– IN2 13

9 GND

DTC2 11

Note: Pin 10 and pin 12 shoud be left open.

3. Error Amp (channel 3) Not In Use

1 VREF

– IN3 18

DTC3 16

9 GND

Note: Pin 15 and pin 17 shoud be left open.

11

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