S-8244 Datasheet, PDF (2/27 Pages) Seiko Instruments Inc – BATTERY PROTECTION IC FOR 1-SERIAL TO 4-SERIAL-CELL PACK (SECONDARY PROTECTION)

BATTERY PROTECTION IC FOR 1-SERIAL TO 4-SERIAL-CELL PACK (SECONDARY PROTECTION)
S-8244 Series
Rev.3.3_00
„ Block Diagram
VCC
SENSE
VC1
VC2
VC3
VSS
Overcharge detection
comparator 1
+
-
Reference voltage 1
Overcharge detection
comparator 2
+
-
Reference voltage 2
Control
logic
Overcharge detection
comparator 3
+
-
Reference voltage 3
Overcharge detection
comparator 4
+
-
Reference voltage 4
Overcharge
detection
ICT
delay circuit
CO
Remark In the case of Nch open-drain output, only the Nch transistor will be
connected to the CO pin. In the case of Pch open-drain output, only
the Pch transistor will be connected to the CO pin.
Figure 1
2
Seiko Instruments Inc.