S-8241ABKMC-GBKT2G Datasheet, PDF (24/39 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 1-CELL PACK

BATTERY PROTECTION IC FOR 1-CELL PACK
S-8241 Series
Rev.9.1_00
„ Timing Chart
(1) Overcharge and overdischarge detection (for products with power-down function)
V_CU
V_CL
Battery
voltage _VDU
VDL
V_DD
DO pin
V_SS
VDD
CO pin
V_SS
VDD
VM pin V_IOV1
V_SS
VCHA
Charger
connected
Load
connected
Status
Overcharge detection delay time (tCU)
(1)
(2)
Overdischarge detection delay time (tDL)
(1)
(3)
(1)
Remark (1) : Normal status, (2) : Overcharge status, (3) : Overdischarge status, (4) : Overcurrent status
The charger is assumed to charge with a constant current.
Figure 7
(2) Overcharge and overdischarge detection (for products without power-down function)
V_CU
VCL
Battery
voltage
VDU
VDL
V_DD
DO pin
VSS
VDD
CO pin
VSS
VDD
VM pin _VIOV1
VSS
V_CHA
Charger
connected
Load
connected
Overcharge detection delay time (tCU) _{Overdischarge detection delay time (tDL)}
Overdischarge detection delay time (tDL)
Status
(1)
(2)
(1)
(3)
(1)
(3)
(1)
Remark (1) : Normal status, (2) : Overcharge status, (3) : Overdischarge status, (4) : Overcurrent status
The charger is assumed to charge with a constant current.
Figure 8
24
Seiko Instruments Inc.