MCP73833-BZI/MF

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The MCP73833-BZI/MF is a single-cell, polymer/optimally-tuned, Li-Ion/Li-Polymer (Li/Poly) battery charger controller. This advanced charge management IC features a variety of features that makes it applicable to a wide range of battery charging scenarios. In this section, we will discuss some of the application fields for this IC and the working principle behind the IC’s functionality.

Application Fields

The MCP73833-BZI/MF is predominantly used for portable, low power, single cell battery applications. These applications include mobile electronics, handheld payment devices, handheld meters, remote monitoring and control systems, low power medical equipment, and wearable electronics, among others. The goal of integrating this IC in such applications is to provide them with efficient, reliable and safe charging so as to ensure that their batteries maintain sufficient power levels.

The IC is available in a variety of package sizes, temperature grades and input voltage levels, allowing it to be integrated into a plethora of applications. One notable feature of this IC is its integrated fault-protection feature, which provides the device and its connected components with protection against fault conditions such as over-current, over-charge and over-temperature.

Working Principle

The MCP73833-BZI/MF implements a constant-current, constant-voltage (CCCV) charging profile, in order to maximize the life of the battery and ensure safe charging. The IC incorporates two adjustable current limit settings and two timer settings, which determine the amount of current the IC can output to charge the connected battery and the amount of time the charging process will take. The IC also features end-of-charge detection, which automatically stops the charging process when the battery is fully charged, thereby preventing the battery from being overcharged and suffering from damage.

In addition, the IC also incorporates an internal charge status indicator, as well as various system and battery monitoring functions, which allow the device to accurately monitor the battery’s status and detect potential faults. Moreover, the charge status indicator also allows the device to be queried remotely and report the battery’s charging status, ensuring constant monitoring of the battery’s state.

Conclusion

The MCP73833-BZI/MF is an advanced charge manager IC with a variety of features that makes it applicable to a wide range of battery charging scenarios. Its implementation of a constant-current, constant-voltage (CCCV) charging profile maximizes the life of the battery, while its integrated fault-protection feature provides the device and its connected components with protection against various fault conditions. Moreover, its system monitoring and reporting capabilities ensure constant monitoring of the battery’s status. Given these features, the IC is ideal for portable, low power, single cell battery applications.

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