LTC4050 데이터 시트보기 (PDF) - Linear Technology

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LTC4050

Lithium-Ion Linear Battery Charger with Thermistor Interface

Linear Technology 

LTC4050

BLOCK DIAGRA

VCC

8

UV

–

28.6k

+

3.88V (LTC4050-4.1)

3.98V (LTC4050-4.2)

C5

NTC

–

2

+

CHRG

3

C1

80Ω

800Ω

+– 54mV

SENSE

9

RSENSE

C4

32µA

4 TIMER

C/10 STOP RECHRG C/10

ACPR LOGIC

SHDN

SLP

720Ω

OSCILLATOR

COUNTER

–

CA

+

C2

LBO

ACPR

10

3.6V VREF

+

C3

A1

–

VCC

2.3µA

VA

VREF

2.47V

CHARGE

BATTERY CURRENT IBAT = (2.47V • 800Ω)/(RPROG • RSENSE)

PROG

6

RPROG

DRV

7

BAT

1

GND

5

4050 BD

4050f

6

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