Datasheet

ManualsBrandsLINEAR TECHNOLOGY ManualsPMICsPMIC - battery management Charge management Li-Ion, NiCd, NiMH MSOP 10 Surface-moun

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9

6

LTC1732-8.4

17328f

BLOCK DIAGRA

W

–

+

–

+

–

+

–

+

UVLO

UNDERVOLTAGE

LOCKOUT

V

CC

= 8.2V

ACPR

C1

–

+

C4

–

+

–

+

C3 A1

CA

C2

VA

CHARGE

GND

1732-8.4 BD

PROG

BATTERY CURRENT I

BAT

= (2.457V • 800Ω)/(R

PROG

• R

SENSE

)

R

PROG

V

REF

2.457V

LBO

80Ω

V

CC

800Ω

54mV

R

SENSE

SENSE

DRV

BAT

720Ω

35µA

TIMER

OSCILLATOR

V

REF

COUNTER

STOP RECHRG

SHDN SLP

C/10 C/10

2.5µA

V

CC

CHRG

5

6

3

4

ACPR

10

9

8

7

1

SEL*

2

+

–

–

+

C5

8.05V

*THE LTC1732-8.4 IS OPTIMIZED FOR 2-CELL (8.4V) Li-Ion BATTERIES.

CONNECT THE SEL PIN TO V

CC

. FOR CHARGING 8.2V BATTERIES USING

THE LTC1732, PLEASE CONTACT THE FACTORY

4.9V