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MM1451 Datasheet Protection Of Lithium-ion Batteries

Manufacturer: Mitsumi Electronics

Overview: MITSUMI Protection of Lithium-Ion Batteries (for Double-Protect) MM1451 Protection of Lithium-Ion Batteries (for Double-Protect) Monolithic IC MM1451 Outline This IC is used for double-protection of lithium-ion batteries with from one to three cells, and has an ultrapact package. Short-circuits between cells acmodate series connections of one to three cells.

Datasheet Details

Part number MM1451
Manufacturer Mitsumi Electronics
File Size 170.78 KB
Description Protection of Lithium-Ion Batteries
Datasheet MM1451_MitsumiElectronics.pdf

General Description

Pin No.

Pin name Functions Equivalent circuit diagram 1 V3 3-cell power supply 2 V2 2-cell power supply 3 V1 1-cell power supply 5 Ct Delay capacity pin 7 OUT OUT pin MITSUMI Protection of Lithium-Ion Batteries (for Double-Protect) MM1451 Absolute Maximun Ratings Item Operating temparature Storage temparature VCC Input voltage V1 Input voltage *1 V2 Input voltage *1 V3 Input voltage *1 Ct pin voltage *2 VOUT pin voltage Allowable loss (Ta=25°C) Symbol TOPR TSTG VCC V1 V2 V3 VCT VOUT Pd -0.3~18 -0.3~18 170 V V mW -0.3~18 V Ratings -20~+80 -40~+125 Unit °C °C Note 1 : 1 18V > = V3 > = V2 > = V1 > = -0.3 Note 2 : 2 Do not impress current of 300µA or more on the Ct pin.

* * Electrical Characteristics 1 (Except where noted otherwise, Ta=25°C, VCEL=V3-V2=V2-V1=V1-GND, VCC=3 Item Current consumption 1 Current consumption 2 Pin I/O current between cells Overcharge detecti

Key Features

  • 1. Overcharge detection voltage accuracy (0°C to 50°C) 2. Consumption current (Vcell=3.8V) 3. Consumption current (Vcell=2.3V) 4. Pin I/O current between cells (Vcell=3.8V) 5. Delay time on overcharge voltage detection (Ct=0.22µF) 6. Output current (Vcell=VCC=4.5 V) ±50 mV/cell. 3µA typ. 0.3µA typ. 0.3µA max. 1.5S typ. 500µA typ. Package VSOP-8B.

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