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| S-8230AAD-I6T1U Datasheet, PDF (19/37 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC | |||
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Rev.2.5_00
BATTERY PROTECTION IC WITH DISCHARGE CONTROL FUNCTION FOR 1-CELL PACK
S-8230A/B Series
8. 0 V battery charge function "unavailable"
This function inhibits recharging when a battery that is internally short-circuited (0 V battery) is connected. When the
battery voltage is the 0 V battery charge inhibition battery voltage (V0INH) or lower, the charge control FET gate is
fixed to the EBâ pin voltage to inhibit charging. When the battery voltage is V0INH or higher, charging can be
performed.
Caution Some battery providers do not recommend charging for a completely self-discharged battery.
Please ask the battery provider to determine whether to enable or inhibit the 0 V battery charge
function.
9. Delay circuit
The detection delay times are determined by dividing a clock of approximately 4 kHz by the counter.
Remark tDIOV and tSHORT start when VDIOV is detected. When VSHORT is detected over tSHORT after VDIOV, the
S-8230A/B Series turns the discharge control FET off within tSHORT from the time of detecting VSHORT.
VDD
DO pin voltage
VSS
VDD
VSHORT
VM pin voltage
VDIOV
VSS
tSHORT
tD
0 ⤠tD ⤠tSHORT
Time
Figure 9
Time
19
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