5- to 10-Cell Li+ Protector with Cell Balancing

8

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Pin Description (continued)

PIN

NAME

FUNCTION

29

SNS

Sense Input. Connect to the drains of the charge and discharge FETs. Used as a voltage reference for

detecting short-circuit and discharge overcurrent conditions.

31

CC

turn off the charge FET.

32

PKP

Pack Positive. The voltage on PKP is used to detect charger-attach and protection-release conditions.

—

EP

Exposed Pad Ground. Connect to the negative terminal of the lowest voltage potential cell.

RSC

RDOC

SEL0

V08

V07

V06

V05

V04

V03

V02

V01

150

Ω

150

Ω

150

Ω

15

Ω

205k

Ω

SEL1

CDOCD

CSCD

SLEEP

82.5k

Ω

150

Ω

60V

1A

1

μF

0.1

μF

1

μF

1

μF

10

μF

1

μF

V10

1k

Ω

1k

Ω

1k

Ω

1k

Ω

1k

Ω

1k

Ω

150

Ω

0.1

μF

10k

Ω

1k

Ω

6.2V

150k

Ω

SLEEP

PKP-

PKP+

DS2726

V09

V08

V07

V06

V05

V04

V03

V02

V01

V00

Figure 2. Typical Application Circuit