FOR AUTOMOTIVE BATTERY PROTECTION IC FOR 3-SERIAL TO 5-SERIAL CELL PACK (SECONDARY PROTECTION)

S-8235A Series

Seiko Instruments Inc.

4



Pin Configuration

1. 16-Pin TSSOP

5

4

6

8

7

2

3

1

12

13

11

9

10

15

14

16

Top view

Figure 2

Table 3

Pin No.

Symbol

Description

1

VDD

Input pin for positive power supply

2

VC1

Positive voltage monitoring pin of battery 1

3

VC2

Negative voltage monitoring pin of battery 1,

Positive voltage monitoring pin of battery 2

4

VC3

Negative voltage monitoring pin of battery 2,

Positive voltage monitoring pin of battery 3

5

VC4

Negative voltage monitoring pin of battery 3,

Positive voltage monitoring pin of battery 4

6

VC5

Negative voltage monitoring pin of battery 4,

Positive voltage monitoring pin of battery 5

7

VSS

Negative voltage monitoring pin of battery 5

8

NPI

Input pin for negative power supply

9

CO

Connection pin of charge control FET gate

10

CAO

Output pin for chip active signal

11

CLKI

Input pin for clock signal

12

RSTI

Input pin for reset signal

13

RSTO

Output pin for reset signal

14

CLKO

Output pin for clock signal

15

CAI

Input pin for chip active signal

16

CTL

Input pin for charge control