s-8204bad-tct1g Seiko Instruments Inc., s-8204bad-tct1g Datasheet - Page 15

• Manufacturer Part Number: s-8204bad-tct1g
• Description: Battery Protection Ic For 3-series Or 4-series Cell Pack
• Manufacturer: Seiko Instruments Inc.

Rev.1.3
5. Discharge Overcurrent Status
6. 0 V Battery Charge Function
In batteries in the normal status, the discharging current increases more than a certain value. As a result, if the status
in which the VINI pin voltage increases to the level of V
discharge overcurrent status. The discharge control FET is turned off and it stops discharging.
This IC has three levels for discharge overcurrent detection (V
overcurrent, the COP pin is set in high impedance. The VMP pin is pulled up to the V
VMP and VDD pin (R
The S-8204B Series’ actions against discharge overcurrent detection voltage 2 (V
voltage (V
The discharge overcurrent status is released if the following condition is satisfied.
In this IC, regarding how to charge a discharged battery (0 V battery), users are able to select either function of the
two mentioned below.
Caution
(1) The VMP pin voltage gets V
(1) Allow to charge a 0 V battery (enable to charge a 0 V battery)
(2) Inhibit charging a 0 V battery (unable to charge a 0 V battery)
_00
A 0 V battery is not charged when the battery voltage is battery voltage for inhibit charging 0 V battery (V
or less.
A 0 V battery is charged when the voltage between VDD and VSS (V
battery (V
SHORT
When the VDD pin voltage is less than the minimum value of operation voltage between VDD and
VSS pin (V
) are as well in V
BATTERY PROTECTION IC FOR 3-SERIES OR 4-SERIES CELL PACK
0CHA
VMD
) or more.
DSOP
).
), this IC’s action is not assured.
DIOV1
DS
.
−1.2 V (Typ.) or more.
Seiko Instruments Inc.
DIOV1
or more, the DOP pin gets the V
DIOV1
, V
DIOV2
, V
SHORT
DS
) is voltage for start charging 0 V
DIOV2
). In the status of discharge
DD
) and short circuit detection
level by a resistor between
SS
S-8204B Series
level. This is the
0INH
15
)