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MB3836 - Li-lon Battery Protection

General Description

The MB3836 is a lithium-ion battery protection IC for three cells series lithium-ion battery pack in a notebook PC’s.

This IC supports charging at 12.6 V and detects an over-charge, over-discharge, and over-current to control charging and discharging.

Key Features

  • Power supply voltage range : 6 V to 13.5 V High-precision over-charge detection voltage : 4.325 V ± 0.025 V Circuit power consumption after detecting over-discharge : 0 µA (Typ) Built-in quasi-over-discharge function Built-in pre-alarm function before shutting down of over-discharge Built-in remoting ON/OFF function Built-in over-discharge current detecting function with 2-step delay time : Vth = 300 mV→7 ms (Typ) : Vth = 600 mV→500 µs (Typ).
  • Built-in charge recovery function for 0 V ce.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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FUJITSU SEMICONDUCTOR DATA SHEET DS04-27707-2E ASSP for Power Supply Applications (For Secondary Battery) Li-Ion Battery Protection IC MB3836 s DESCRIPTION The MB3836 is a lithium-ion battery protection IC for three cells series lithium-ion battery pack in a notebook PC’s. This IC supports charging at 12.6 V and detects an over-charge, over-discharge, and over-current to control charging and discharging. The IC has a built-in function that makes the battery rechargeable even when the battery voltage has decreased to 0 V. Upon detection of an over-discharge from the lithium-ion battery, the IC outputs a preliminary signal to stop discharging. This feature allows the notebook PC to save its memory data to hard disk.