M62253AGP 데이터 시트보기 (PDF) - MITSUBISHI ELECTRIC

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M62253AGP

Charge Control IC for Li-Ion Batteries

MITSUBISHI ELECTRIC  

5. Flowchart for charging

MITSUBISHI <STD-Linear ICs>

M62253AGP

Charge Control IC for Li-Ion Batteries

Insert Battery

Charge inhibit

charge off

LED1: turned OFF

LED2: turned OFF

Charge inhibit

charge off

LED1: turned OFF

LED2: turned OFF

1.45V<V T I N <3.13V

No

Yes

Delay CKT. for temp.

detect is start to action

After 49ms

1.45V<V T I N <3.16V

No

Yes

LED1: turned ON and

Const. current charge:250mA or

Const. voltage charge:4.1V

(during 1.15sec)

Const. voltage output:2.55V

(during 106msec)

For 4.1V type battery

Notice: The voltage, current and

time value are depend on

application circuit.(Page 10)

Const. voltage charge:4.1V

Const. current charge:250mA

3.0V<Vbatt

<4.1V

Check

battery voltage

more than 4.1V

Const. voltage charge:4.1V

more than

25mA

Check

charge current

less than 2.6V

Check

battery voltage more than 4.1V

2.6V<Vbatt<4.1V

3.0V<Vbatt<4.1V

Check

battery voltage

2.6V<Vbatt<3.0V

Const. current charge:25mA

less than

3.0V

Check

battery voltage

more than 3.0V

more than

25mA

Check

charge current

less than 25mA

Delay CKT. for current

detect is start to action

No

Charge current

less than 25mA

(pass to 1.15sec)

Yes

Stop the charge

(to change output voltage to 2.55V)

less than 25mA

Delay CKT. for current

detect is start to action

No

Charge current

less than 25mA

(pass to 1.15sec)

Yes

Stop the charge

(to change output voltage to 2.55V)

Complete charge(charge OFF)

passed 1.06sec

LED1: turned OFF, LED2: turned ON

more than 3.9V

Check

battery voltage

Flowchart of temp. detect.(with hysteresis) during charge

When high temp.

When low temp.

Const. current or Const. voltage

charge.(1.45V<VTIN<3.16V)

Const. current or Const. voltage

charge.(1.45V<VTIN<3.16V)

No

VTIN<1.45V

Yes

Delay CKT. for temp.

detect is start to action

No

After 49ms

VTIN<1.55V

Yes

Charge inhibit

No

3.16V<V T I N

Yes

Delay CKT. for temp.

detect is start to action

No

After 49ms

3.13V<V T I N

Yes

Charge inhibit

less than 3.9V

Delay CKT. for current

detect is start to action

Battery voltage

No

less than 3.9V

(pass to 1.06sec)

Yes

No 1.55V<VTIN

Yes

Delay CKT. for temp.

detect is start to action

No

After 49ms

1.45V<V T I N

Yes

No VTIN<3.13V

Yes

Delay CKT. for temp.

detect is start to action

No

After 49ms

VTIN<3.16V

Yes

( 7 / 10)

00-08-24

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