MB3825APFV データシートの表示（PDF） - Fujitsu

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MB3825APFV

6-ch DC/DC Converter IC With Synchronous Rectifier

Fujitsu 

MB3825A

Pin No.

17

16

15

14

CH 5

64

2

1

3

8

12

11

10

9

CH 6

4

6

5

7

8

Triangular- 21

Wave

Oscillator

Circuit

22

30

Control Circuit 29

13

23

26

Symbol

FB5

−IN (E) 5

+IN (E) 5

IN (C) 5

OUT1-5

CB1-5

CB2-5

VB5

OVP5, 6

FB6

−IN (E) 6

+IN (E) 6

IN (C) 6

OUT1-6

CB1-6

CB2-6

VB6

OVP5, 6

RT

CT

CTL1

CTL2

SCP

CSCP

CS

I/O

Descriptions

O Channel 5 error amplifier output terminal.

I Channel 5 error amplifier inverted input terminal.

I Channel 5 error amplifier non-inverted input terminal.

I Channel 5 short detection comparator input terminal.

O Channel 5 output terminal.



Channel 5 boot capacitor connection terminal.



 Channel 5 output sink current setting terminal.

I Channel 5, 6 output maximum voltage setting terminal.

O Channel 6 error amplifier output terminal.

I Channel 6 error amplifier inverted input terminal.

I Channel 6 error amplifier non-inverted input terminal.

I Channel 6 short detection comparator input terminal.

O Channel 6 output terminal.



Channel 6 boot capacitor connection terminal.



 Channel 6 output sink current setting terminal.

I Channel 5, 6 output maximum voltage setting terminal.

 Triangular wave frequency setting resistor connection terminal.

 Triangular wave frequency setting capacitor connection terminal.

Power supply control circuit.

I

“H” level : Power supply operating mode

“L” level : Standby mode

Channel 3 control circuit.

I

When CTL1 terminal is “H” level

“H” level : Channel 3 in operating mode

“L” level : Channel 3 in OFF mode

I Short detection comparator input terminal.

 Short protection circuit capacitor connection terminal.

 Soft-start circuit capacitor connection terminal.

(Continued)

4

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