S-8253A SII [Seiko Instruments Inc], S-8253A Datasheet - Page 10

• Manufacturer Part Number: S-8253A
• Description: BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK
• Manufacturer: SII [Seiko Instruments Inc]

10
BATTERY PROTECTION IC FOR 2-SERIAL OR 3-SERIAL-CELL PACK
S-8253A/B Series
1. Overcharge Detection Voltage 1, Overcharge Release Voltage 1, Overdischarge Detection Voltage 1,
2. Overcurrent Detection Voltage 1, Overcurrent Detection Voltage 2, Overcurrent Detection Voltage 3
Test Circuits
Overdischarge Release Voltage 1
(Test Condition 1, Test Circuit 1)
Confirm that V1 = V2 = 3.5 V (S-8253A Series), V1 = V2 = V3 = 3.5 V (S-8253B Series), V4 = 0 V, V5 = 0 V, and the COP
and DOP pins are “L” (V
1. 1 Overcharge Detection Voltage 1 (V
1. 2 Overdischarge Detection Voltage 1 (V
By changing Vn (n = 2: S-8253A Series, n = 2, 3: S-8253B Series) the overcharge detection voltage (V
release voltage (V
measured in the same way as when n = 1.
(Test Condition 2, Test Circuit 1)
Confirm that V1 = V2 = 3.5 V (S-8253A Series), V1 = V2 = V3 = 3.5 V (S-8253B Series), V4 = 0 V, V5 = 0 V, and the COP
pin and DOP pin are low (this status is referred to as the initial status).
2. 1 Overcurrent Detection Voltage 1 (V
2. 2 Overcurrent Detection Voltage 2 (V
2. 3 Overcurrent Detection Voltage 3 (V
Overcharge detection voltage 1 (V
more) after the V1 voltage has been gradually increased starting at the initial status. Overcharge release voltage 1
(V
Overdischarge detection voltage 1 (V
voltage has been gradually decreased starting at the initial status. Overdischarge release voltage 1 (V
voltage of V1 when the voltage at the DOP pin is low after the V1 voltage has been gradually increased.
Overcurrent detection voltage 1 (V
after the V5 voltage has been gradually increased starting at the initial status.
Overcurrent detection voltage 2 (V
within the minimum and maximum values of overcurrent detection time 2 (t
instantaneously increased (within 10 µs) starting at the initial status.
Overcurrent detection voltage 3 (V
within the minimum and maximum values of overcurrent detection time 3 (t
instantaneously increased (within 10 µs) starting at the initial status.
CL1
) is the voltage of V1 when the voltage at the COP pin is low after the V1 voltage has been gradually decreased.
CLn
), overdischarge detection voltage (V
DD
× 0.1 V or lower) (this status is referred to as the initial status).
IOV1
IOV2
IOV3
CU1
DL1
) is the voltage of V1 when the voltage of the COP pin is “H” (V
) is the voltage of V5 when the voltages of the COP pin and DOP pin are high
) is the voltage of V5 when the voltages of the COP pin and DOP pin are high
) is the voltage of V5 when the voltages of the COP pin and DOP pin are high
CU1
IOV1
IOV2
IOV3
Seiko Instruments Inc.
) is the voltage of V1 when the voltage of the DOP pin is high after the V1
), Overcharge Release Voltage 1 (V
DL1
)
)
)
), Overdischarge Release Voltage 1 (V
DLn
), and overdischarge release voltage (V
CL1
IOV2
IOV3
)
) after the voltage of V5 was
) after the voltage of V5 was
DU1
)
CUn
Rev.3.7
), overcharge
DD
Dun
× 0.9 V or
DU1
) can be
) is the
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