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MP2651 - 1-Cell to 4-Cell Buck-Boost Charger

General Description

The MP2651 is a buck-boost charger IC designed for battery packs with 1 cell to 4 cells in series.

The device can accept a wide 4V to 22V input voltage (VIN) range to charge the battery.

The buck-boost topology allows the battery voltage to be above or below VIN.

Key Features

  • include charge termination and autorecharge. The MP2651 also integrates the input current (IIN) limit and VIN limit to avoid overloading the input power source. This is compliant with the USB and PD specifications. The MP2651 can also supply a wide voltage range (4V to 21V) at the input when source mode is enabled. The device also has an IN output current limit in source mode (IIN_SRC) with high resolution in source mode. The I2C/SMBus interface can configure the charge and discharge parameters,.

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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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MP2651 I2C-Controlled, 1-Cell to 4-Cell Buck-Boost Charger with Reverse Source Mode DESCRIPTION The MP2651 is a buck-boost charger IC designed for battery packs with 1 cell to 4 cells in series. The device can accept a wide 4V to 22V input voltage (VIN) range to charge the battery. The buck-boost topology allows the battery voltage to be above or below VIN. When the input is present, the MP2651 operates in charge mode. It measures the battery voltage and charges the battery with four phases: constant current trickle charge, constant current pre-charge, constant current fast charge, and constant voltage charge. Other features include charge termination and autorecharge. The MP2651 also integrates the input current (IIN) limit and VIN limit to avoid overloading the input power source.