S-8233BBFT SII [Seiko Instruments Inc], S-8233BBFT Datasheet - Page 19

• Manufacturer Part Number: S-8233BBFT
• Description: BATTERY PROTECTION IC (FOR A 3-SERIAL-CELL PACK)
• Manufacturer: SII [Seiko Instruments Inc]

Rev.4.2
Precautions
Caution 1. The above constants may be changed without notice.
If the charger is detached in the over charge and over discharge condition, the over charge condition
is released, but the over discharge condition remains. If the charger is connected again, the battery
condition is monitored after that. The charging FET turns off after the over charge detection delay
time, the over charge and over discharge conditions are entered.
If a charger is connected in the over discharge condition and one of the battery voltages becomes
equal to or higher than the over charge release voltage (V
below the over discharge detection voltage (V
release voltage (V
and discharging FETs turn off. Both charging and discharging are disabled. If the battery voltage
which was higher than the over charge detection voltage (V
(V
If any one of the battery voltages is equal to or lower than the over discharge release voltage (V
when they are connected for the first time, the normal condition may not be entered. If the VMP
terminal voltage is made equal to or higher than the
condition is entered.
If the CTL terminal floats in power-down mode, it is not pulled up in the IC, charging may not be
inhibited. However, the over discharge condition becomes effective. At that time, current
consumption would be increase because CTL terminal is affected by noise. If the charger is
connected, the CTL terminal is pulled up, and charging and discharging are inhibited immediately.
Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in
electrostatic protection circuit.
SII claims no responsibility for any disputes arising out of or in connection with any infringement by
products including this IC of patents owned by a third party.
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2. If any electrostatic discharge of 2000 V or higher is not applied to the S-8233B series
3. It has not been confirmed whether the operation is normal or not in circuits other than
) due to internal discharging, the charging FET turns on.
with a human body model, R1, R2, R3, C1, C2, and C3 are unnecessary.
the above example of connection. In addition, the example of connection shown above
and the constant do not guarantee proper operation. Perform through evaluation using
the actual application to set the constant.
DU
), the over discharge and over charge conditions are entered and the charging
BATTERY PROTECTION IC FOR 3-SERIAl-CELL PACK
Seiko Instruments Inc.
DD
) becomes equal to or higher than the over discharge
V
CC
voltage (if a charger is connected), the normal
CU
CU
) before the battery voltage which is
) falls to the over charge release voltage
S-8233B Series
DU
)
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