LTC1732-4.2 View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LTC1732-4.2

Lithium-Ion Linear Battery Charger Controller

Linear Technology 

LTC1732-4/LTC1732-4.2

BLOCK DIAGRA

UNDERVOLTAGE

LOCKOUT

C5

VUV = 4.1V

C1

CHRG

3

TIMER

4

ACPR

10

35µA

C/10 STOP UVLO RECHRG C/10

ACPR

LOGIC

SHDN

SLP

OSCILLATOR

VREF

COUNTER

+

C3

A1

–

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

VCC

8

3.8V (LTC1732-4)

4.05V (LTC1732-4.2)

80Ω

720Ω

800Ω

C4

–

CA

+

C2

LBO

+– 54mV

SENSE

9

DRV

7

BAT

1

SEL

2

VCC

2.5µA

PROG

6

RPROG

VA

VREF

2.457V

CHARGE

GND

5

1732 BD

RSENSE

6

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