S-8232 Seiko, S-8232 Datasheet - Page 20

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

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20
BATTERY PROTECTION IC FOR 2-SERIAL-CELL PACK
S-8232 Series
• After the overcurrent detection, the load was connected for a long time, even if one of the battery voltage
became lower than overdischarge detection voltage (V
long as the load is connected. Therefore the IC’s current consumption at the one of the battery voltage is
lower than the overdischarge detection voltage is same as normal condition current consumption (I
(refer to the Figure 11 ).
[Cause]
[Conclusion]
• Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in
• SII claims no responsibility for any and all disputes arising out of or in connection with any infringement
The reason is as follows. If the overcurrent detection and overdischarge detection occur at same time,
the overcurrent detection takes precedence the overdischarge detection. As long as the IC detects
overcurrent, the IC can’t detect overdischarge.
If the load is taken off at least one time, the overcurrent is released and the overdischarge detection
works.
Unless keeping the IC with load for a long time, the reduction of battery voltage will be neglected,
because of the IC’s current consumption (typ. 7.5 µA) is small.
electrostatic protection circuit.
of the products including this IC upon patents owned by a third party.
B attery
voltage
C urrent
consum ption
D O pin
voltage
V M pin
voltage
Load connect
V
V
E B−
I
I
V
V
V
V
0 V
0 A
V
O P E
P D N
IO V 2
IO V 1
D D
C C
S S
C C
S S
Seiko Instruments Inc.
The over current delay
A s long as the load is connected, the IC ’s current is
sam e as norm al current consum ption (I
Figure 11
The battery voltage is less than the overdischarge
detection voltage, by self current consum ption
Long haul load connected
DD1, 2
), the IC can’t detects the overdischarge as
O P E
)
Rev.5.4
_00
OPE
)