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MB3836

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 A (Typ)• Built-in quasi-over-discharge function• Built-in pre-alarm function before s...

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SeekIC No. : 004413296 Detail

MB3836: 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 :...

MB3836 Data Sheet

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Part Number:
MB3836
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/27

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Product Details

Description



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 A (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 mV7 ms (Typ)
                                                                                                                     : Vth = 600 mV500 ms (Typ)


Pinout

Connection Diagram


Specifications

Parameter Symbol Conditions Rating Unit
Min. Max.
Power supply voltage VCC - - 20 V
Input voltage VI BATH, OCV, PDWN, OUTON, PF,
MSW1, MSW2 terminals		 - 20 V
Collector output voltage VO COUT terminal - 25 V
Output current IO DOUT, COUT terminals (DC) - 2 mA
Peak output current IO DOUT, COUT terminals
Duty = tON / t		 - 2 / Duty mA
Power dissipation PD Ta +25 °C - 540 * mW
Operating temperature Ta - -30 + 85 °C
Storage temperature Tstg - -55 +125 °C
* : When mounted on a 10 cm square double-sided epoxy board.
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,
                  temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.


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 MB3836 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 MB3836 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 MB3836 disconnects all of its biases so that its current consumption becomes 0 A. 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 MB3836 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.

The MB3836's remote on/off function can turn off the output from the detached battery pack without the need for an external logic circuit or any mechanism on the notebook PC. This prevents the output from being short-circuited by a malfunction and facilitates the handling of the battery pack itself.

The MB3836 is the best IC for protecting the lithium-ion battery pack used for a notebook PC.




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