Smart battery protection and monitoring IC
M61040FP
10. Timing chart
10-1. Discharge sequence
5
Vbat4 reaches the over-charge voltage.
4
3
From low voltage
2
(Vbat1,Vbat2,Vbat3,Vbat4)
1
0
Charge Period
0.15
0.1
0.05
0
− 0.05
− 0.1
− 0.15
20
15
10
5
0
Discharging
Charging
Off in initializing
Charge Start
Command from Microcomputer
Charge Stop
Command from Microcomputer
20
15
10
Off in initializing
5
0
Command from Microcomputer
Pre-charge Start
Command from Microcomputer
Pre-charge stop
20
15
10
Off in initializing
5
0
20
VIN_12pin
15
10
5
0
Charge Start
Command from Microcomputer
VDDpin
VIN_1pin
5
Vreg
Charger connected
0
RESET
Microcomputer starts
operations.
5
Gain 200
Gain 40
Pre-charge current
Monitor
Charge current
Monitor
Bat1
Bat2
Monitor
Bat3
Monitor
Bat4
Monitor
0
Monitor
Fig.14
∗Testing in constant voltage
Mitsubishi Electric
(20/25)