BATTERY PROTECTION IC FOR 3-SERIAL-CELL PACK

S-8233C Series

Seiko Instruments Inc.

8

(7) Measurement 7 Measurement circuit 4

Set S1 to ON, S2 to OFF, V1, V2, and V3 to 3.5 V, and V4 to 0 V under normal condition. Increase V5

from 0 V gradually. The V5 voltage when I5 = 10

Increase V6 from 0 V gradually. The V6 voltage when I6 = 10

(8) Measurement 8 Measurement circuit 5

Set V1, V2, V3 to 3.5 V and V4 to 0 V under normal condition. Increase V5 from 0 V gradually. The V5

voltage when I5 = 10

(9) Measurement 9 Measurement circuit 6

Set V1, V2, V3 to 3.5 V under normal condition. Increase V1 from 3.5 V to 4.5 V immediately (within 10

Set V1, V2, V3 to 3.5 V under normal condition. Decrease V1 from 3.5 V to 1.9 V immediately (within 10

µs). The time after V1 becomes 1.9 V until DOP goes 'H' is the over discharge detection delay time 1

(10) Measurement 10 Measurement circuit 6

Set V1, V2, V3 to 3.5 V under normal condition. Increase V2 from 3.5 V to 4.5 V immediately (within 10

Set V1, V2, V3 to 3.5 V under normal condition. Decrease V2 from 3.5 V to 1.9 V immediately (within 10

µs). The time after V2 becomes 1.9 V until DOP goes 'H' is the over discharge detection delay time 2

(11) Measurement 11 Measurement circuit 6

Set V1, V2, V3 to 3.5 V under normal condition. Increase V3 from 3.5 V to 4.5 V immediately (within 10

Set V1, V2, V3 to 3.5 V under normal condition. Decrease V3 from 3.5 V to 1.9 V immediately (within 10

µs). The time after V3 becomes 1.9 V until DOP goes 'H' is the over discharge detection delay time 3

(12) Measurement 12 Measurement circuit 7

Set V1, V2, V3 to 3.5 V and S1 to OFF under normal condition. Increase V4 from 0 V to 0.55 V

immediately (within 10

µs). The time after V4 becomes 0.55 V until DOP goes 'H' is the over current

Set V1, V2, V3 to 3.5 V and S1 to OFF under normal condition. Increase V4 from 0 V to 0.75 V

immediately (within 10

µs). The time after V4 becomes 0.75 V until DOP goes 'H' is the over current

Set S1 to ON to inhibit over discharge detection. Set V1, V2, V3 to 4.0 V and increase V4 from 0 V to 6.0

V immediately (within 1

µs) and decrease V1, V2, and V3 to 2.0 V at a time. The time after V4 becomes