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

S-8235A Series

Seiko Instruments Inc.

7



Test Circuit

In Figure 4, the following statuses are the initial statuses 1 to 4.

V12 = V13 = 0 V.

Initial status 2: Set V1 = V2 = V3 = V4 = V5 = 3.5 V in initial status 1.

Initial status 3: Set V9 = 0 V in initial status 2, and output 8 clocks

Initial status 4: Set V1 = V2 = V3 = V4 = V5 = 2.8 V, V8 = 0 V, V9 = 0 V, V12 = V13 = 0 V.

*1. 1 clock is defined as follows.

"H": Output of 5 V for 50 ms or more

"L": Output of 0 V for 50 ms or more

V1

V2

V4

V3

V5

1

2

3 VC2

4 VC3

5 VC4

6 VC5

7 VSS

8

16

CLKO

15

RSTO

14

RSTI

13

CLKI

12

CAO

11

CTL

CAI

CO 9

NPI

10

VDD

VC1

S-8235A

V8

V9

V12 V13

V6

V7

V10

V11

A

V

A

V

A

A

A

V

A

V

A

A

A

A

A

A

A

A

Figure 4 Test Circuit