MM3077 Mitsumi Electronics, Corp., MM3077 Datasheet
MM3077
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MM3077 Summary of contents
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... Protection for Lithium-Ion/Lithium Polymer Batteries (1 cell) MM3077/MM3177 Series MITSUMI MITSUMI Protection for Lithium-Ion/Lithium Polymer Batteries (1 cell) Monolithic IC MM3077/MM3177 Series Outline This is a protection IC developed for use with 1-serial cell lithium-ion/lithium polymer rechargeable batteries. It provides a function to protect the batteries by detecting overcharge, overdischarge, discharge overcurrent, and other abnormalities and turning off the external FET switch ...
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... Protection for Lithium-Ion/Lithium Polymer Batteries (1 cell) MM3077/MM3177 Series MITSUMI Block diagram SOT-26A Counter Oscillator VD1 Logic Circuit Over-charge VD2 Logic Circuit Over-discharge VD3 Over-discharge Current Pin Assignment SOT-26A 1 D OUT 2 V– OUT Pin Description SOT-26A Pin No ...
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... Protection for Lithium-Ion/Lithium Polymer Batteries (1 cell) MM3077/MM3177 Series MITSUMI MITSUMI Absolute maximum ratings Item Supply voltage Charger minus pin input voltage DS pin input voltage C pin output voltage OUT D pin output voltage OUT Operating temperature Storage temperature Electrical characteristics Parameter Operating input voltage ...
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... Protection for Lithium-Ion/Lithium Polymer Batteries (1 cell) MM3077/MM3177 Series MITSUMI MITSUMI Test circuit (SON-6A V– V– V– V– V– ...
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... Protection for Lithium-Ion/Lithium Polymer Batteries (1 cell) MM3077/MM3177 Series MITSUMI MITSUMI Description 1. Over charge detection circuit (VD1) This IC monitor V pin voltage, when the voltage from a low value higher than the overcharge detection voltage, the IC sense a overcharging and external charging control Nch MOS FET turns to OFF with C After detecting overcharge when the V voltage (4 ...
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... Protection for Lithium-Ion/Lithium Polymer Batteries (1 cell) MM3077/MM3177 Series MITSUMI 3. Discharging over current detector,Short detector (VD3, Short Detector) When the V-pin voltage is going value during the short detection voltage (V overdischarge current detection voltage (0.150V typ.) is overdischarge current detection mode, when the V-pin voltage higher than short detection voltage makes the short detection mode ...
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... Application hints R1 and C1 stabilize a supply voltage to the MM3077. However, the detection voltage rises by the current of penetration the voltage detection when R1 is enlarged, and the value adjusted to 1kΩ or less. Moreover, please adjust the value 0.01µF or more to do the stability operation. ...
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... Protection for Lithium-Ion/Lithium Polymer Batteries (1 cell) MM3077/MM3177 Series MITSUMI Timing chart 1 Over-charge operations Connect Charger DET V 1 REL V– DET DET C OUT V DD V– I CHARGE 0 I DISCHARGE Connect Connect Load Charger tV 1 DET tV 1 REL ...
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... Protection for Lithium-Ion/Lithium Polymer Batteries (1 cell) MM3077/MM3177 Series MITSUMI Timing chart Over-discharge, over-discharge current, short operations Connect Load DET V– SHORT V 3 DET DET D OUT CHARGE 0 I DISCHARGE Over-discharge Connect Connect Connect Charger Load ...