MITSMI MM1301FW, MM1301CW, MM1301AW, MM1301GW, MM1301HW Datasheet

MITSUMI

Protection of Lithium Ion Batteries (one cell) MM1301

Protection of Lithium Ion Batteries (one cell)

Monolithic IC MM1301

Outline

This IC provides protection for the MM1291 series of compact, high-precision type lithium ion batteries which
have been in use for some time. Precision of ±30mV is guaranteed between 0°C and +50°C, and this IC can
be used in applications where precision is crucial.

Features

1 Overcharge detection voltage Ta=0~+50°C VCEL±30mV
2 Overcharge detection delay time C

TD=0.082µF 1.0S typ.

3 Current consumption (normal operation V

CEL=3.5V) 10µA typ.

4 Current consumption (overdischarge operation V

CEL=1.9V) 0.7µA typ.

5 Overcurrent cancel conditions Load removed : Load of 5MΩ or greater across battery pack terminals

Package

VSOP-8A

Applications

Lithium ion battery pack (for battery protection)

1-Cell Protection ICs

Package

Overcharge

Overdischarge

Release Overcurrent detection

detection

Hysteresis

Dead time

detection voltage

Delay

SOP-8 VSOP-8

voltage

Overcurrent Detec time shot-mode

MM1301 AW 4.27V 200mV 2.3V 2.9V 100mV 0.9V

BW 4.17V 100mV 2.3V 2.9V 100mV 0.9V
CW 4.18V 100mV 2.3V 2.9V 125mV 0.45V
DW 4.28V 220mV 2.3V 2.9V 50mV 0.45V

EF 4.20V 100mV 2.3V 2.9V 125mV 0.45V
FW 4.28V 100mV 2.3V 2.9V 50mV 0.45V
GW 4.18V 220mV 2.3V 2.9V 125mV 0.45V
HW 4.35V 220mV 2.3V 2.9V 50mV 0.45V

JW 4.20V 220mV 2.3V 2.9V 125mV 0.45V

at
Ctd=

0.082µF

min. 0.5S

typ. 1S

max. 1.5S

min. 5mS

typ. 10mS

max. 15mS

min. 5mS

typ. 10mS

max. 15mS

Note : Under open-load conditions, returns to normal mode from overcurrent mode.

(For MM1291A to G, J, M, 5MΩ or higher; for MM1291H, K, 50MΩ or higher)

MITSUMI

Protection of Lithium Ion Batteries (one cell) MM1301

Pin Assignment

Pin Description

1432

8567

VSOP-8A

1 GND

2 GD

3 CS

4 OC

5 N.C

6 TD

7 V

CC

8 VIN

Pin No.

Pin name Function

1 GND

Negative power supply pin

Also serves as voltage detection pin for battery connected between V

IN and GND

Gate connection pin for discharge-control FET (N-ch)

2 GD Turns the gate off in overdischarge mode and overcurrent mode. Gate is turned on in

overcharge and normal modes.

Overcurrent detection input pin

3 CS Discharge current detected by connection to drain pin of discharge-control FET.

Discharge current = (CS-GND voltage)/(FET turn-on resistance)

Block Diagram