Charge and discharge control for coin-type lithium batteries and manganese dioxide lithium batteries MM1177
MITSUMI
Block Diagram
Absolute Maximum Ratings
Item
Symbol
TSTG
Rating
Units
°C
Storage temperature
Operating temperature
input voltage
-
40~+125
TOPR
-20~+70
°C
VIN max.
VBAT max.
PD
18
V
Charging voltage
3.5
V
Allowable power dissipation
Charging current
300
10
mW
mA
mA
IBATT
Discharging current
IL
1
(Unless otherwise specified Ta=25°C, VIN=12.0V)
Electrical Characteristics
Item
Symbol
Measurement Conditions
Min Typ. Max. Units
Input voltage operation range
Current consumption 1
Current consumption 2
Charging current (limiter current)
VINOPR
IIN1
4.0
15.0
V
during charging (constant voltage charge)
charging off
100 180
µA
µA
IIN2
30
45
IBATT
VIN=4V~15V, VBATT=2V
4.0
4.5
5.0 mA
Limiter mode off
1177AF
1177BF
1177AF
1177BF
3.00
2.70
VICOFF
IBATT=4mA
V
Charging OFF voltage
3.20 3.275 3.35
2.93 3.00 3.07
V
V
VCHOFF
IBA1
IBATT=0mA, Ta=-20~+70°C
Current consumption (battery)
IL=100µA, VBATT=3V
VIN=0V or open
VBATT=3.35V
5
8
µA
Leak current when discharging
is prohibited
IBA2
0.1
µA
V
Voltage when discharging is prohibited
VOOFF
VCEOUT
VOUT2
after VIN=0FF
1.60 1.75 1.90
75
2.85 2.92 3.00
Voltage drop between battery
and output
IL=100µA, VBATT=3V
100 mV
OUT2 pin voltage
VCELL=3V
V
Note : Do not connect the OUT2 pin to the load; it does not have current supply capability.
To delay discharge prohibition, or suppress discharge prohibition caused by noise, connect a capacitor
between the OUT2 pin and GND.
MITSUMI [ MITSUMI ELECTRONICS, CORP. ]
