MB39A113 데이터 시트보기 (PDF) - Fujitsu

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MB39A113

DC/DC Converter IC for Charging Li-ion Battery

Fujitsu 

MB39A113

s BLOCK DIAGRAM

−INE1 8

OUTC1 10

+INC1 13

−INC1 12

<Current Amp 1>

+

×20

−

+INE1 9

−INE2 4

OUTC2 2 <Current Amp 2>

+INC2 24

+

×20

−INC2 1

−

+INE2 3

FB12 7

−INE3 16

OUTD 11

FB3 15

VREF

<Error Amp1>

−

+

+

<Error Amp2>

−

+

+

<CV Comp.>

−

+

2.6 V

<OV Comp.>

+

−

1.4 V

5 CVM

18 OVP

0.2 V

+

−

<UV Comp.>

−INC2

(VO)

<PWM Comp.>

++

−

21 VCC

<OUT>

Drive

20 OUT

VREF

<Error Amp3>

−

+

+

4.2 V

−2.5 V

−1.5 V

19

VCC − 6 V

VH

VH

Bias

Voltage

UVLO

VREF

UVLO

<SOFT>

VREF

10 µA

CS 22

4.2 V

bias

VCC

<OSC>

500 kHz

CT

45 pF

<REF> <CTL>

VREF

5.0 V

17

6

23

RT

VREF

GND

14 CTL

5

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