S-8232 Seiko, S-8232 Datasheet - Page 10

• Manufacturer Part Number: S-8232
• Description: BATTERY PROTECTION IC
• Manufacturer: Seiko

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10
BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK
S-8232 Series
(1) Test Condition 1, Test Circuit 1
(2) Test Condition 2, Test Circuit 1
(3) Test Condition 3, Test Circuit 1
(4) Test Condition 4, Test Circuit 2
(5) Test Condition 5, Test Circuit 2
(6) Test Condition 6, Test Circuit 3
Test Circuits
Set S1 = OFF, V1 = V2 = 3.6 V, and V3 = 0 V under normal condition. Increase V1 from 3.6 V gradually.
The V1 voltage when CO = “L” is overcharge detection voltage 1 (V
voltage when CO = “H” is overcharge release voltage 1 (V
when DO = “L” is overdischarge voltage 1 (V
is overdischarge release voltage 1 (V
condition. Increase V1 from 3.6 V gradually. The V1 voltage when CO = “L” is auxiliary overcharge
detection voltage 1 (V
Set S1 = OFF, V1 = V2 = 3.6 V, and V3 = 0 V under normal condition. Increase V2 from 3.6 V gradually.
The V2 voltage when CO = “L” is overcharge detection voltage 2 (V
voltage when CO = “H” is overcharge release voltage 2 (V
when DO = “L” is overdischarge voltage 2 (V
is overdischarge release voltage 2 (V
condition. Increase V2 from 3.6 V gradually. The V2 voltage when CO = “L” is auxiliary overcharge
detection voltage 2 (V
Set S1 = OFF, V1 = V2 = 3.6 V, and V3 = 0 V under normal condition. Increase V3 from 0 V gradually.
The V3 voltage when DO = “L” is overcurrent detection voltage 1 (V
V3 = 0 under normal condition. Increase V3 from 0 V gradually. (The voltage change rate < 1.0 V / ms)
V3 − (V1 + V2) voltage when DO = “L” is overcurrent detection voltage 2 (V
Set S1 = ON, V1 = V2 = 3.6 V, and V3 = 0 V under normal condition and measure current consumption.
Current consumption I1 is the normal condition current consumption (I
1.5 V under overdischarge condition and measure current consumption. Current consumption I1 is the
power-down current consumption (I
Set S1 = ON, V1 = V2 = V3 = 1.5 V, and V3 = 2.5 V under overdischarge condition. (V1 + V2 − V3) / I2 is
the internal resistance between VCC and VM (RVCM).
Set S1 = ON, V1 = V2 = 3.6 V, and V3 = 1.1 V under overcurrent condition. V3 / I2 is the internal
resistance between VSS and VM (RVSM).
Set S1 = ON, S2 = OFF, V1 = V2 = 3.6 V, and V3 = 0 V under normal condition. Increase V4 from 0 V
gradually. The V4 voltage when I1 = 10 µA is DO voltage “H” (V
Set S1 = OFF, S2 = ON, V1 = V2 = 3.6 V, and V3 = 0.5 V under overcurrent condition. Increase V5 from
0 V gradually. The V5 voltage when I2 = 10 µA is the DO voltage “L” (V
CUaux1
CUaux2
).
).
PDN
DU1
DU2
Seiko Instruments Inc.
).
). Set S1 = ON, and V1 = V2 = 3.6 V and V3 = 0 V under normal
). Set S1 = ON, and V1 = V2 = 3.6 V and V3 = 0 V under normal
DD1
DD2
). Increase V1 gradually. The V1 voltage when DO = “H”
). Increase V2 gradually. The V2 voltage when DO = “H”
CD1
CD2
). Further decrease V1. The V1 voltage
). Further decrease V2. The V2 voltage
DO(H)
CU1
CU2
IOV1
).
). Decrease V1 gradually. The V1
). Decrease V2 gradually. The V2
DO(L)
). Set S1 = ON, V1 = V2 = 3.6 V,
OPE
IOV2
). Set S1 = OFF, V1 = V2 =
).
).
Rev.5.4
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