S8233A datasheet(11/30 Pages) SII

11 / 30 page

BATTERY PROTECTION IC FOR 3-SERIAL-CELL PACK

Rev.3.2_10

S-8233A Series

Seiko Instruments Inc.

(13) Measurement 13 Measurement circuit 8

Set S4 to ON, S1, S2, S3, S5, and S6 to OFF, V1, V2, V3 to 3.5 V and V4, V6, and V7 to 0 V under

normal condition. Increase V5 from 0 V gradually. The V5 voltage when I2 = 10

µA is the CD1'L' voltage

(VCD1(L))

Set S5 to ON, S1, S2, S3, S4, and S6 to OFF, V1, V2, and V3 to 3.5 V and V4, V5, and V7 to 0 V under

normal condition. Increase V6 from 0 V gradually. The V6 voltage when I3 = 10

µA is the CD2'L' voltage

(VCD2(L)).

Set S6 to ON, S1, S2, S3, S4, and S5 to OFF, V1, V2, and V3 to 3.5 V and V4, V5, and V6 to 0 V under

normal condition. Increase V7 from 0 V gradually. The V7 voltage when I4 = 10

µA is the CD3'L' voltage

(VCD3(L)).

Set S1 to ON, S2, S3, S4, S5, and S6 to OFF, V1 to 4.5 V, V2 and V3 to 3.5 V and V5, V6, and V7 to 0 V

under over charge condition. Increase V4 from 0 V gradually. The V4 voltage when I1 = 0.1

µA is the

CD1'H' voltage (VCD1(H)).

Set S2 to ON, S1, S3, S4, S5, and S6 to OFF, V2 to 4.5 V, V1 and V3 to 3.5 V and V5, V6, and V7 to 0 V

under over charge condition. Increase V4 from 0 V gradually. The V4 voltage when I1 = 0.1

µA is the

CD2'H' voltage (VCD2(H)).

Set S3 to ON, S1, S2, S4, S5, and S6 to OFF, V3 to 4.5 V, V1 and V2 to 3.5 V and V5, V6, and V7 to 0 V

under over charge condition. Increase V4 from 0 V gradually. The V4 voltage when I1 = 0.1

µA is the

CD3'H' voltage (VCD3(H)).

(14) Measurement 14 Measurement circuit 9

Set V1, V2, and V3 to 4.5 V under over charge condition. The current I1 flowing to COP terminal is COP

OFF LEAK current (ICOL).

(15) Measurement 15 Measurement circuit 10

Set V1, V2, and V3 to 0 V, and V8 to 2 V, and decrease V8 gradually. The V8 voltage when COP = 'H'

(VSS + 0.1 V or higher) is the 0V charge start voltage (V0CHAR).

S8233A Datasheet(PDF) 11 Page - Seiko Instruments Inc