LTC1731-4.2 데이터 시트보기 (PDF) - Linear Technology

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LTC1731-4.2

Single Cell Lithium-Ion Linear Battery Charger Controllers

Linear Technology 

LTC1731-4.1/LTC1731-4.2

BLOCK DIAGRA

C1

CHRG

2

3 TIMER

100µA

C/10 STOP C/10

LOGIC

SHDN

SLP

OSCILLATOR

VREF

COUNTER

+

C3

A1

–

BATTERY CURRENT IBAT = (2.457V • 800Ω)/(RPROG • RSENSE)

VCC

7

80Ω

720Ω

800Ω

C4

–

CA

+

C2

LBO

SENSE

8

+– 54mV

DRV

6

BAT

1

VCC

2.5µA

PROG

5

RPROG

VA

VREF

2.457V

CHARGE

GND

4

1731 BD

RSENSE

6

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