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MM1214 Datasheet

  • MM1214

  • Control of Lithium Ion Battery Charging and Discharging

  • 106.79KB

  • 4頁

  • MITSUMI   MITSUMI

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MITSUMI
Control of Lithium Ion Battery Charging and Discharging MM1214
Control of Lithium Ion Battery Charging and Discharging
Monolithic IC MM1214
Outline
This IC controls constant current charging and excess discharge for lithium-ion batteries (sub-batteries). It
performs constant current charging, stops charging at set voltages, and prevents excess discharging. When
the voltage falls below a set level, it prohibits discharges and reduces IC current consumption nearly to zero.
Features
During charging
1. Input voltage range
2. Current consumption (V
IN
pin)
3. Current consumption (V
CC
pin)
4. Charging current switching voltage
5. Charging current (normal conditions)
6. Charging current (low voltages)
7. Charging control voltage (Ta =-20~+70擄C)
8. Overvoltage detection voltage (Ta =-20~+70擄C)
9. Overvoltage reset voltage
10.Overvoltage detection non-induction time
11.Overvoltage reset non-induction time
4.5V~15.0V
9mA typ.
500碌A(chǔ) typ.
2.7V鹵0.1V
105mA typ.
5.0mA typ.
4.200V鹵0.063V
4.335V鹵0.065V
3.50V鹵0.13V
0.80S typ.
0.80S typ.
V
BATT
<4.1V
I
BATC
=0mA
C
CC
=2.22碌F
C
CC
=0.22碌F
During discharging
12.Current consumption (Vbat pin)
I
L
=10mA
13.Current consumption (Vbat pin)
I
L
=0mA
14.Current consumption (Vbat pin) discharging off,
: V
BAT
<2.4V
15.Excess discharging detection voltage
16.Discharge resumption voltage
17.Voltage drop between battery and output (V
BATT
=3.0V,
I
L
=-10mA)
18.Voltage drop between battery and output (I
L
=100碌A(chǔ), V
BATT
=3V)
450碌A(chǔ) typ.
15碌A(chǔ) typ.
0.1碌A(chǔ) max.
2.30V鹵0.19V
2.70V鹵0.1V
70mV typ.
2.92V typ.
Package
SSOP-16A (MM1214XF)
Application
For overnight charging

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