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MITSUBISHI
M62253AGP
Charge Control IC for Li-Ion Batteries
General Description
The M62253AGP is a charge control IC dedicated to Lithium-Ion batteries. The constant current/voltage charging suitable for Li-Ion batteries are available by utilizing on-chip current/voltage control circuits. It also includes the charge inhibit function for an over discharged battery and the charge control function detecting battery temperature, enabling easy configuration of a Li-Ion battery charging circuit.
Pin Configuration (Top view)
T IN 1 16 OUT 15 SENSE + 14 SENSE 13 V SENSE 12 GND 11 NC 10 C2 9 C1
C3 2 VrefSW 3 V DD 4 Vcc NC 5 6
Features
*Available for 4.1V and 4.2V battery *Accurate reference voltage 4.2V 30mV *Constant current and voltage charging *Charging inhibit and protection function for a over discharged battery *Charging inhibit and protection function for both a high and low temperature battery *Recharging function *Dual LED indications monitoring charging states *Delay circuit to prevent the erroneous detection
LED1 7 LED2 8
Package Outline : 16P2E
Applications
Li-Ion Battery Charger for hand-held instruments such as cellular phones and notebook computers
Block Diagram
The voltage value within [ ] is for 4.2V type battery. And the voltage value without [ ] is for 4.1V type battery or common value for both (4.1V and 4.2V) battery.
V DD
4.1V [4.2V]
VrefSW C1
Vcc
Regulated Supply
4.42V[4.53V]
4.0V<->3.9V [4.1V<->3.99V]
OE
OUT
...
