S-82B1AAA-I6T1U Datasheet, PDF (19/35 Pages) Seiko Instruments Inc – High-accuracy voltage detection circuit

BATTERY PROTECTION IC WITH CHARGE-DISCHARGE CONTROL FUNCTION FOR 1-CELL PACK
Rev.1.1_00
S-82B1A Series
2. Discharge overcurrent detection
2. 1 Release condition of discharge overcurrent status "load disconnection"
V_CU
V_CL (V_CU − V_HC)
Battery voltage
V_DU (V_DL + V_HD)
V_DL
V_DD
DO pin voltage
V_SS
V_DD
CO pin voltage
V_SS
V_DD
VM pin voltageVS^VHROIORVT
V_DIOV2
V_DIOV1
V_SS
Load connection
Discharge overcurrent
Discharge overcurrent
Load short-circuiting
detection delay time 1 (t_DIOV1) detection delay time 2 (t_DIOV2) ^{detection delay time (t}SHORT⁾
(1)
(2)
(1)
(2)
(1)
(2)
(1)
Status^*1
*1. (1): Normal status
(2): Discharge overcurrent status
Remark The charger is assumed to charge with a constant current.
Figure 11
19