M62253FP Datasheet, PDF (1/5 Pages) Mitsubishi Electric Semiconductor – LITHIUM ION BATTERY CHARGER CONTROL IC

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MITSUBISHI(Dig.Ana.INTERFACE)
M62253FP
LITHIUM ION BATTERY CHARGER CONTROL IC
GENERAL DESCRIPTION
The M62253FP is a charge controller designed for charging
lithium ion batteries.
The IC has a current and voltage control circuit allowing the
constant current/voltage charging to lithium ion batteries.
A charger system for lithium ion batteries can be easily designed
by utilizing the IC`s following functions ;
• charge disabling function for an over discharged battery
• charge control function by detecting the battery temperature
FEATURES
• Constant current and voltage charging
• Charge disabling functions for an over discharged battery
and a high/low temperature battery
• Recharging function
• 2 LED driving circuits to Indicate charging conditions
• Delay circuit to prevent chattering
PIN CONFIGURATION(TOP VIEW)
TIN ₁
C3 ₂
Vref ₃
VDD 4
Vcc ₅
LED1 ₆
LED2 ₇
14 OUT
13 SENSE+
12 SENSE -
11 VSENSE
10 GND
9 C2
8 C1
Outline 14P2N-A
APPLICATION
Lithium ion battery charger for digital equipment
BLOCK DIAGRAM
Vref
VDD
C1
Std.
VOLTAGE
4.1V to 3.9V
Incorrect
detect
prohibition
circuit
3.0V
2.6V
LED2
LED1
Vcc
OE
OUT
Fixed current
control circuit
ISENSE+
ISET
ISENSE-
OUT
SENSE+
OE
OUT
Fixed voltage
control circuit
VSET
VSENSE
SENSE-
Incorrect
detect
prohibition
circuit
Incorrect
detect
prohibition
circuit
Current
detect
circuit
VDD
R1
1.64V
R2
VSENSE
VDD
R1
3.54V
R2
TIN
GND
C3 C2
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