S8225B Datasheet, PDF (2/24 Pages) Seiko Instruments Inc – BATTERY MONITORING IC FOR 3-SERIAL TO 5-SERIAL CELL PACK

BATTERY MONITORING IC FOR 3-SERIAL TO 5-SERIAL CELL PACK
S-8225B Series
 Block Diagram
Rev.1.4_00
CTLD
CTLC
CO pin output
voltage limit circuit
CO
DO pin output
voltage limit circuit
DO
SEL1
SEL2
CDT
CCT
Control circuit
Delay circuit
Delay circuit
Overcharge 1
−
Over- +
discharge 1₊
−
Overcharge 2
−
Over- ⁺
discharge 2 ₊
−
Overcharge 3
−
Over-
+
discharge 3 ₊
−
Overcharge 4
−
Over-
+
discharge 4 ₊
−
Overcharge 5 _−
Over-
+
discharge 5 +
−
VDD
VC1
VC2
VC3
VC4
VC5
VC6
VSS
Remark Diodes in the figure are parasitic diodes.
Figure 1
2
Seiko Instruments Inc.