M62253AGP Datasheet, PDF (8/10 Pages) Mitsubishi Electric Semiconductor – Charge Control IC for Li-Ion Batteries

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
1.49V<V T I N <3.21V
No
Yes
Delay CKT. for temp.
detect is start to action
After 49ms
1.49V<V T I N <3.23V
No
Yes
LED1: turned ON and
Const. current charge:256mA or
Const. voltage charge:4.2V
(during 1.15sec)
Const. voltage output:2.61V
(during 106msec)
For 4.2V type battery
Notice: The voltage, current and
time value are depend on
application circuit.(Page 10)
Const. voltage charge:4.2V
Const. current charge:256mA
3.07V<Vbatt
<4.2V
Check
battery voltage
more than 4.2V
Const. voltage charge:4.2V
more than
26mA
Check
charge current
less than 2.66V
Check
battery voltage _{more than 4.2V}
2.66V<Vbatt<4.2V
3.07V<Vbatt<4.2V
Check
battery voltage
2.66V<Vbatt<3.07V
Const. current charge:26mA
less than
3.07V
Check
battery voltage
more than 3.07V
more than
26mA
Check
charge current
less than 26mA
Delay CKT. for current
detect is start to action
No
Charge current
less than 26mA
(pass to 1.15sec)
Yes
Stop the charge
(to change output voltage to 2.61V)
less than 26mA
Delay CKT. for current
detect is start to action
No
Charge current
less than 26mA
(pass to 1.15sec)
Yes
Stop the charge
(to change output voltage to 2.61V)
Complete charge(charge OFF)
passed 1.06sec
LED1: turned OFF, LED2: turned ON
more than 3.99V
Check
battery voltage
Flowchart of temp. detect.(with hysteresis) during charge
When high temp.
When low temp.
Const. current or Const. voltage
charge.(1.49V<VTIN<3.23V)
Const. current or Const. voltage
charge.(1.49V<VTIN<3.23V)
No
VTIN<1.49V
Yes
Delay CKT. for temp.
detect is start to action
No
After 49ms
VTIN<1.59V
Yes
Charge inhibit
No
3.23V<V T I N
Yes
Delay CKT. for temp.
detect is start to action
No
After 49ms
3.21V<V T I N
Yes
Charge inhibit
less than 3.99V
Delay CKT. for current
detect is start to action
Battery voltage
No
less than 3.99V
(pass to 1.06sec)
Yes
No _1.59V<VTIN
Yes
Delay CKT. for temp.
detect is start to action
No
After 49ms
1.49V<V T I N
Yes
No _VTIN<3.21V
Yes
Delay CKT. for temp.
detect is start to action
No
After 49ms
VTIN<3.23V
Yes
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00-08-24