M62244FP
Li-ion Battery Charge Controller IC
REJ03F0067-0100Z
Rev.1.0
Sep.19.2003
Description
M62244FP is a semiconductor integrated circuit designed as Li-ion battery charge control IC.
Built-in constant current and constant voltage circuit allows for charging Li-ion battery.
Features
Available for 4.2V battery
Built-in high precision ref. voltage (charge voltage) 4.2V
±
30mV
Available for constant current and constant voltage charge
Built-in protection function for charge prohibition of over-discharged battery
Built-in protection function for charge prohibition of high and low temperature battery
Built-in trickle charge function
Charge condition displayed by 2 system LEDs
Built-in delay circuit for chattering prevention
Built-in charge OFF function when adaptor is pulled out
Built-in charge OFF function when adaptor voltage goes down
Charge ON/OFF available by external control
Built-in 3 kind of timer (externally variable)
Initial setting timer : about 5 min.
Recharge timer : about a hour
Charge timer : about 4 hour
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Built-in LED blinking function when abnormal
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Application
Li-ion battery charger
Pin Configuration
Idet2
1
Vsense
2
Vadp1
3
Vadp2
4
Tdet
5
Vrchg
6
Ifull
7
Cosc
8
STP
9
VREF
10
20
19
18
17
16
15
14
13
12
11
Idet1
CTRL
VCC
LED2
LED1
GND2
C2
C1
GND
Vcvref
TSSOP20
M62244FP
Rev.1.0, Sep.19.2003, page 1 of 17
RENESAS [ RENESAS TECHNOLOGY CORP ]
