MM1309 Просмотр технического описания (PDF) - Mitsumi

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MM1309

Protection of Lithium Ion Batteries (three cells in series)

Mitsumi 

MITSUMI

Protection of Lithium Ion Battery (three cells in series) MM1309

Protection of Lithium Ion Batteries (three cells in series)

Monolithic IC MM1309

Outline

This is a 3-cell series protection IC is for protecting a lithium ion battery from overcharging and excess

discharging. If abnormalities occur during charging and excess voltage is applied, it has a function that turns

off the external FET switch (overcharging detection). It also has a function that turns off the external FET

switch when the voltage for each battery falls below a set voltage, to prevent excess discharge when

discharging the battery (discharging detection). At that time, the IC is switched to low current consumption

mode.

These functions comprise a protection circuit, with few external parts, for lithium ion batteries.

Features

1. Current consumption (for VCC pin)

2. Current consumption (for VCC pin)

3. Current consumption (for VCC pin)

4. Current consumption (for VCC pin)

5. Current consumption (for BATH pin)

6. Current consumption (for BATH pin)

7. Current consumption (for BATH pin)

8. Charge prohibit voltage (Ta=-20°C~+70°C)

VCELL=4.4V

VCELL=4.2V

VCELL=3.8V

VCELL=2.2V

VCELL=4.4V

VCELL=3.8V

VCELL=2.2V

9. Charge prohibit release voltage

10.Charge prohibit detection function operation voltage

11.Excess discharge detection voltage

12.Discharge resumption voltage

13.Excess discharge detection hysteresis voltage

700µA typ.

300µA typ.

25µA typ.

0.1µA max.

12µA typ.

8µA typ.

1µA typ.

B : 4.35V±50mV

C : 4.25V±50mV

VCELLU-45mV

B : 4.20V typ.

C : 4.10V typ.

2.40V±0.09V, 2.35V±0.09V

B : 2.65V±0.16V

C : 2.60V±0.16V

250±75mV

Package

SOP-8C (MM1309 F)

*The box represents the rank resulting from the combination of protection functions.

Applications

1. Notebook PCs

2. Portable terminals

3. Others

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