MB3878PFV View Datasheet(PDF) - Fujitsu

Part Name

Description

View to exact match

MB3878PFV

DC/DC Converter IC for Charging

Fujitsu 

MB3878

s PIN DESCRIPTION

Pin No.

1

2

3

4

5

6

7

8

9

10

Symbol

−INC2

OUTC2

+INE2

−INE2

FB2

VREF

FB1

−INE1

+INE1

OUTC1

11

OUTD

12

−INC1

13

+INC1

14

CTL

15

FB3

16

−INE3

17

RT

18

VCC

19

VH

20

OUT

21

VCC (O)

22

CS

23

GND

24

+INC2

I/O

Descriptions

I

Current detection amplifier (Current Amp. 2) input pin.

O Current detection amplifier (Current Amp. 2) output pin.

I

Error amplifier (Error Amp. 2) non-inverted input pin.

I

Error amplifier (Error Amp. 2) inverted input pin.

O Error amplifier (Error Amp. 2) output pin.

O Reference voltage output pin.

O Error amplifier (Error Amp. 1) output pin.

I

Error amplifier (Error Amp. 1) inverted input pin

I

Error amplifier (Error Amp. 3) non-inverted input pin.

O Current detection amplifier (Current Amp. 1) output pin.

With IC in standby mode, this pin is left open to prevent loss of current

O through output voltage setting resistance. Set CTL pin to “H” level and

OUTD pin to “L” level.

I

Current detector amplifier (Current Amp. 1) input pin.

I

Current detector amplifier (Current Amp. 1) input pin.

I

Power supply control pin.

Setting the CTL pin low places the IC in the standby mode.

O Error amplifier (Error Amp. 3) output pin.

I

Error amplifier (Error Amp. 3) inverted input pin.

 Triangular-wave oscillation frequency setting resistor connection pin.

 Power supply pin for reference power supply and control circuit.

O

Power supply pin for FET drive circuit (VH = Vcc − 5 V).

O High-side FET gate drive pin.

 Output circuit power supply pin.

 Soft-start capacitor connection pin.

 Ground pin.

I

Current detection amplifier (Current Amp. 2) input pin.

3

Share Link: