MCP73831-4ADI/MC

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MCP73831-4ADI/MC is a highly-integrated Lithium-Ion Battery Charge Management Controller. It provides an advanced level of system integration in a very small package. This device is classified within Power Management-Integrated Circuits (PMICs) as one of the Battery Chargers. It is designed to charge 4-series cell Lithium-Ion batteries from USB or adapter wall power sources. It features a line 47-ohm current-sense resistor for external current-set points and a thermistor for temperature monitoring and safety.

The MCP73831-4ADI/MC is ideal for consumer electronics, wearable applications and smart cards powered by single cell Li-Ion batteries. It enables battery status monitoring and is capable of charging from either a wall adapter or a USB port. It features an integrated fast-charge algorithm that has temperature protection. It also has an accurate voltage regulation loop and continuous current fold back. The device is available in TDFN and MSOP packages.

This device works in three primary loops that are all managed by on-chip analog circuitry. The first loop is the crossover loop, which regulates the output voltage during charge-state transitions. The second loop is the constant current control, which monitors output current, temperature, and lifespan of the battery. The third loop is the constant voltage control, which maintains the output voltage at a fixed level.

The MCP73831-4ADI/MC is designed to charge 4-series cell Lithium-Ion batteries from USB or adapter wall power sources. This device allows for a broad input voltage range from 4.75 to 8.4V. It features an efficient internal Linear Regulator and current sensors for optimal Li-Ion battery charging. It ensures Universal Serial Bus (USB) compatibility and meets USB port power delivery requirements. The device is designed for use in stationary applications, as well as portable applications such as bluetooth headsets, medical implants, and RFID tags.

The MCP73831-4ADI/MC includes many safety features that increase the lifespan of the battery and help protect it against damage. These include over-voltage protection, over-temperature protection, and low-voltage protection. In addition, the device has a low quiescent current, which helps to minimize energy consumption. It is also designed to be in compliance with the USB specification.

The MCP73831-4ADI/MC is an extremely cost-effective and efficient power management solution for a variety of applications. It is designed to work with 1.5A to 2.4A wall adapters and also includes USB support. This device helps to ensure that Li-Ion batteries are properly charged and helps to increase battery life. Its advanced algorithm and safety features make it a reliable and long-lasting charge management solution.

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