MCP73833-GPI/UN

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The MCP73833-GPI/UN is a Battery Management System integrated circuit specifically designed for lithium-ion and lithium-polymer batteries. It employs a constant-current/constant-voltage (CC/CV) charging algorithm, which significantly increases its versatility to accommodate a wide range of battery capacities, configurations and form factors. The integrated device offers several features including active cell balancing and automatic charge termination while maintaining the simplicity of use in any application environment.

The MCP73833-GPI/UN provides a 5V 1A Input Supply and Single Cell Li-ion Battery Charger with Smart Programmable Features, which allows it to be used in a variety of applications, such as Power Banks. It is capable of providing a logic level output with 4.2V Floating Battery Voltage and 2.45V to 4.2V Programmable Input Supply Voltage. Additionally, it incorporates safety features, such as Overvoltage Protection and Thermal Regulation.

The main application field for the MCP73833-GPI/UN is Power Banks, but it can also be used for wearable devices, such as smartwatches and smart wristbands, as well as in various other consumer and industrial applications.

The working principle behind the MCP73833-GPI/UN is relatively straightforward. It combines a simple constant-current/constant-voltage (CC/CV) charging algorithm based on FET driven charge and discharge cells. In Charge mode, the charging current is balanced to the battery capacity, and the cell voltage is continuously adjusted to ensure the correct charge is maintained. In the Discharge mode, the charging current is reduced and the battery is discharged at a safe rate. The terminal voltage is monitored to ensure that the charge does not drop below a certain level.

The MCP73833-GPI/UN also includes an integrated 3.3V to 5V logic level regulator to support external peripherals, a 3-pin thermal regulation switch, and integrated overvoltage protection. The integrated logic is also able to detect fail safe conditions and is capable of detecting a ‘0-battery’ condition as well as overvoltage and overtemperature conditions.

In sum, the MCP73833-GPI/UN is an integrated device designed for use in a wide range of lithium-ion and lithium-ion polymer battery applications. Its CC/CV charging algorithm provides increased versatility to accommodate a variety of battery capacities, configurations, and form factors. Its integrated safety features, such as overvoltage protection and thermal regulation, make it a reliable and safe choice for any application.

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