MCP73831T-2ACI/OT Integrated Circuits (ICs)

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Battery chargers are used to replenish the power of rechargeable batteries either by connecting to the battery directly or by providing charging sources for the batteries to use. PMICs, or power management ICs, are a type of integrated circuit designed to manage battery chargers for optimal operation and performance. Among these types of PMICs, the MCP73831T-2ACI/OT is a popular choice for charging applications requiring charge current values up to 2A.

The MCP73831T-2ACI/OT is a dedicated single-cell linear charger IC that uses the current mode control with thermal regulation. It integrates three additional features to make it a highly efficient device: a built-in power path management system to allow a simultaneous load and charge operation, a robust wide input voltage range, and an accurate temperature sensing circuit. This device is available in a very small 20 pin TSSOP package that is suitable for portable applications.

This device\'s single-cell linear charging profile is ideal for applications that use alkaline, NiCd, NiMH, Li-ion and Li-polymer chemistries. It can be used for charging a wide range of battery capacities, ranging from 2.1V to 4.2V, with a wide operating temperature range from -40°C to 85°C. Its minimum system input voltage of 2.5V and its fast charging characteristics, which use a current of 500mA to 2000mA, make it suitable for higher capacity batteries.

The MCP73831T-2ACI/OT consists of two I/O pins that are connected to the host processor. The IO1 pin is the main control pin, which can be set to either active-high or active-low, depending on the user’s application. The IO2 pin is used to monitor the battery voltage, which can be monitored by a voltage divider. When the voltage on the IO2 pin reaches the cell voltage, the device is disabled and must be reset by the host processor.

In addition to its linear charge control, the MCP73831T-2ACI/OT also includes several safety features, such as current limiting, thermal modulation, and charge timer and charge fault. All of these features help to ensure that the device is safe to use and is capable of efficiently charging batteries.

The MCP73831T-2ACI/OT\'s built-in power path system helps to minimize the current draw from the battery by allowing charge and load operations in parallel. This feature helps to maximize the device\'s efficiency, as well as helps to ensure safe battery operation. The wide input voltage range allows for safer use in different application scenarios, such as when power is applied from USB, wall adapter, or car battery.

All in all, the MCP73831T-2ACI/OT is an ideal choice for battery charging applications requiring charge current values up to 2A. Its small, TSSOP package allows for easy integration in consumer electronics and portable devices, while its safety features and built-in power path management help to ensure safe, efficient operation.

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