MB3836 Datasheet PDF

Fujitsu MB3836

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.

Part No.	MB3836
Datasheet	MB3836 Download
Manufacturer	Fujitsu
Description	Li-lon Battery Protection
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APPLICATIONS

(For Secondary Battery) Li-Ion Battery Protection IC MB3836 s

DESCRIPTION

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. In addition, the IC allows the battery to be used up to the over-discharge level of each cell, increasing the operating time. After detecting an over-discharge, the IC disconnects all of its biases so that its current consumption becomes 0 µA. The IC can therefore make the battery pack rechargeable even when it has been left for an extended period of time with the output disconnected due to over-discharging. The battery can also be set into a quasi-over-discharged state even when the cell voltage is equal to or greater than the over-discharge detection voltage. When the notebook PC is shipped, the IC can prevent the battery pack from being discharged and turn off its bias sources, allowing the battery pack to be stored for a long time.