BATTERY PROTECTION IC FOR SINGLE-CELL PACK
S-8261 Series
Rev.1.9_00
Block Diagrams
1. Product with 0 V Battery Charge Function
DP
Output control circuit
0 V battery charge
Oscillator control circuit
Divider
control
logic
circuit
DO
VDD
Charger
+
detection circuit
CO
−
Overcharge
+
detection
comparator
−
Overcurrent 1
detection comparator
Overdischarge
detection
RVMD
comparator
+
VM
−
+
Overcurrent 2
RVMS
detection comparator
−
+
−
Load short-circuiting
detection comparator
VSS
Remark All the diodes shown in the figure are parasitic diodes.
Figure 1
2. Product with 0 V Battery Charge Inhibition Function
DP
Output control circuit
0 V battery charge
inhibition circuit
Oscillator control circuit
Divider
control
logic
DO
CO
VDD
Charger
+
detection circuit
−
Overcharge
+
detection
comparator
−
Overcurrent 1
detection comparator
Overdischarge
detection
RVMD
comparator
+
VM
−
+
Overcurrent 2
RVMS
detection comparator
−
+
−
Load short-circuiting
detection comparator
VSS
Remark All the diodes shown in the figure are parasitic diodes.
Figure 2
Seiko Instruments Inc.
3
SII [ SEIKO INSTRUMENTS INC ]
