MITSUMI

Lithium-Ion Battery Charge Control (1 cell) MM3204 Series

Lithium-Ion Battery Charge Control (1 cell)

Monolithic IC MM3204 Series

Applications

This IC is a linear charge control IC for 1-cell lithium-ion/lithium-polymer batteries.

It incorporates a power MOSFET and a reverse-current block circuit for easy implementation of charge

control of lithium-ion batteries.

It also incorporates an LED display circuit to allow the charge status to be displayed.

Features

1. Constant-voltage charge control

2. Constant-current control

3. Includes a power MOSFET

4. Includes a charge timer

5. Incorporates a reverse-current block circuit

6. Outputs the charge status display to the LED and microprocessor

Package

PLP-8B

Applications

1. Cellular phones

2. Portable music players

3. Digital still cameras

4. Portable game devices

5. PDA

MITSUMI

Phased Out Products

MITSUMI

Lithium-Ion Battery Charge Control (1 cell) MM3204 Series

MITSUMI

Block Diagram

AC ADAPTER

VDC

GND

VDD

Adapter

Detection

1.54V

CURRENT AMP

REVERSE

CURRENT DET

CONTROL

RECHARGE

PRECHARGE

LOW VOLTAGE

CHARGE

CNTROL

TIMER

CV CONTROL

1.3V

Reference

Voltage

4.53V

Regulator

3.1V

Regulator

4.2V

3.99V

BIAS

OSCILLATOR

THERMAL

SHUTDOWN

40µA

TIMER

SHORT

TDET LED-R IMON GND

DISPLAY

LOGIC

CHIP

ENABLE

B+

B-

Battery

Pack

RSNS

VDET

ISNS

Thermistor

Li-ion

Battery

Pin Assignment

PLP-8B

(TOP-VIEW)

1432

8567

1 VDD

2 IMON

3 LED-R

4 GND

5 CE

6 TDET

7 VDET

8 ISNS

Phased Out Products