S-8213AAB-I6T1U Datasheet, PDF (2/28 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 2-SERIAL

BATTERY PROTECTION IC FOR 2-SERIAL / 3-SERIAL CELL PACK (SECONDARY PROTECTION)
S-8213 Series
 Block Diagram
1. CMOS output product
Rev.1.3_03
VDD
VC1
Overcharge
detection
comparator 1
+
−
Reference voltage 1
VC2
VC3
VSS
Overcharge
detection
comparator 2
Oscillator
+
−
Control
logic
Overcharge
detection / release
delay circuit
CO
Reference voltage 2
Overcharge
detection
comparator 3
+
−
Reference voltage 3
Remark The diodes in the figure are parasitic diodes.
Figure 1
2