MM3114 Mitsumi Electronics, Corp., MM3114 Datasheet

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MM3114

Manufacturer Part Number
MM3114
Description
Protection For Lithium-ion Batteries
Manufacturer
Mitsumi Electronics, Corp.
Datasheet
MITSUMI
MITSUMI
Outline
Features
Package
Applications
This IC integrates overcharge/overdischarge protection functions for lithium-ion/lithium polymer rechargeable
batteries and the regulator functions into one chip by high voltage CMOS process. It can be used with other
gas gauge IC, security IC, etc. as it includes a regulator. Overcharge/overdischarge can be detected to
protect 4-cell lithium-ion/lithium polymer batteries. Charge/discharge control is perfomed using two external
Pch MOS FETs.
1. Overcharge detection voltage
2. Over-discharge detection voltage
3. No external capacitor for delay time required (delay time is set by the internal circuit)
4. Regulator output voltage
5. Regulator load current
6. Operating temperature range
VSOP-10A
1. Lithium-ion battery pack (four cells).
Protection for Lithium-Ion Batteries (4-serial cells)
Monolithic IC MM3114 Series
Selectable between 4.0~4.5V by 5mV steps
Accuracy ±25mV
Selectable between 2.0~3.0V by 100mV steps
Accuracy ±80mV
Selectable between 2.0~4.0V by 0.2V steps
Accuracy ±3%
100mA max.
-40~85ºC
Protection for Lithium-Ion Batteries (4-serial cells) MM3114 Series

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MM3114 Summary of contents

Page 1

... Regulator output voltage 5. Regulator load current 6. Operating temperature range Package VSOP-10A Applications 1. Lithium-ion battery pack (four cells). Protection for Lithium-Ion Batteries (4-serial cells) MM3114 Series Selectable between 4.0~4.5V by 5mV steps Accuracy ±25mV Selectable between 2.0~3.0V by 100mV steps Accuracy ±80mV Selectable between 2.0~4.0V by 0.2V steps Accuracy ±3% 100mA max. -40~85º ...

Page 2

... MITSUMI MITSUMI Block Diagram Pin Assignment 10 1 Protection for Lithium-Ion Batteries (4-serial cells) MM3114 Series Over charge Over discharge Over charge Over discharge Over charge Over discharge Over charge Oscillator Over discharge ...

Page 3

... CTL pin supply voltage Allowable loss Recommended Operating Conditions Item Operating temperature Supply voltage Protection for Lithium-Ion Batteries (4-serial cells) MM3114 Series Function Output of over discharge detection. Output type is CMOS. ·Normal mode : "Low" ·Overdischarge mode : "High" The input terminal of the power supply of IC, and the positive voltage of V4 cell. ...

Page 4

... V Pin8 (VREG) line regulation OUT1 V Pin8 (VREG) load regulation OUT2 * 1 : The parameter is guaranteed by design The test circuit symbols on next page. Protection for Lithium-Ion Batteries (4-serial cells) MM3114 Series (Except where noted otherwise Ta=+25°C, V Measurement conditions V =3.5V, I =0mA CELL OUT V =1.8V, I =0mA ...

Page 5

... V D OSCILLOSCOPE 1 DCHG DCHG Protection for Lithium-Ion Batteries (4-serial cells) MM3114 Series CTL 8 A VREG CTL 8 VREG OSCILLOSCOPE ...

Page 6

... MITSUMI Timing chart Overchage Function Protection for Lithium-Ion Batteries (4-serial cells) MM3114 Series ...

Page 7

... MITSUMI Overdischage Function Protection for Lithium-Ion Batteries (4-serial cells) MM3114 Series ...

Page 8

... IC consumes as much as possible (The V max.). · The output type of DCHG pin is CMOS having high level of V Protection for Lithium-Ion Batteries (4-serial cells) MM3114 Series pin voltage and the low level set to IN and low level of V ...

Page 9

... MITSUMI ELECTRIC CO., LTD. assumes no responsibility for any infringement of industrial property or any other right of a third party or us result of the use of these circuits. Protection for Lithium-Ion Batteries (4-serial cells) MM3114 Series pin being at low level. OUT voltage level to the terminal DS. ...

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