S-8241ABKMC-GBKT2G Datasheet, PDF (25/39 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 1-CELL PACK

Rev.9.1_00
BATTERY PROTECTION IC FOR 1-CELL PACK
S-8241 Series
(3) Overcurrent detection
VCU
VCL
Battery
voltage VDU
VDL
VDD
DO pin
VSS
VDD
CO pin
VSS
VM pin
VDD
VSHORT
VIOV2
VIOV1
VSS
Charger connection
Load connection
Overcurrent 1 detection delay time (tIOV1) Overcurrent 2 detection delay time (tIOV2) Load short-circuiting detection delay time (t ) SHORT
Status
(1) (4)
(1)
(4)
(1)
(4)
(1)
Remark (1) : Normal status, (2) : Overcharge status, (3) : Overdischarge status, (4) : Overcurrent status
The charger is assumed to charge with constant current.
(4) Charger detection
V_CU
Battery ^VCL
voltage _VDU
V_DL
Figure 9
DO pin ^VDD
V_SS
CO pin ^VDD
V_SS
V_DD
VM pin
V_SS
V_CHA
Charger connection
Load connection
SMtaotdues
Overdischarge detection delay time (t_DL)
If VM pin voltage < V_CHA
Overdischarge is released at
overdischarge detection voltage (V_DL)
(1)
(3)
(1)
Re^Nm^oa^terk^{: (}(¹1⁾)^N: ^oN^ro^mrm^ala^ml s^ota^dt^eu^,s⁽,²(2⁾ )^O:^vO^ev^rce^hrc^ah^ra^gr^ege^ms^ot^da^etu^,s⁽,³(⁾3^O) :^vO^erv^deⁱr^sd^cis^hc^ah^rgar^ege^ms^ot^da^etu^,s⁽,⁴(⁾4^O) :^vO^erv^ce^ur^rc^ru^erⁿre^t n^mt ^ost^da^etus
T_Th_he_{e c}c_hh_aa_rr_gg_ee_rr_ii_ss_aa_ss_ss_uu_mm_ee_dd_toto_chc_ah_ra_gr_ege_wiw_thit_ch_oc_no_sn_tas_nta_{t c}n_ut _rc_ru_enrr_te_. nt.
Figure 10
Seiko Instruments Inc.
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