S-8205AAA-TCT1U Datasheet, PDF (21/33 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC

Rev.1.9_00
BATTERY PROTECTION IC FOR 4-SERIES OR 5-SERIES CELL PACK
S-8205A/B Series
3. Charge Overcurrent Detection
Battery voltage
V_CUn
V_CLn
V_DUn
V_DLn
(n= 1 to 5)
V_HC
V_HD
V_DD
DO pin voltage
V_SS
V_DD
CO pin voltage
V_EB-
High-Z
High-Z
V_DD
VM pin voltage
V_SS
V_EB-
V_DD
VINI pin voltage
V_DIOV
V_SS
V_CIOV
Charger connection
Load connection
Status^*1
(With power-down function)
Charge overcurrent detection delay
time (t_CIOV)
<4> <3> <1>
<2>
Status^*1
<3>
<1>
<2>
(Without power-down function)
Charge overcurrent detection delay
time (t_CIOV)
<1>
<2>
<1>
<1>
<2>
<1>
*1. <1>: Normal status
<2>: Charge overcurrent status
<3>: Overdischarge status
<4>: Power-down status
Remark The charger is assumed to charge with a constant current. V_EB- indicates the open voltage of the charger.
Figure 12
21