MCP73213-G6XI/MF

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The MCP73213-G6XI/MF PMIC – Battery Chargers is a power co-processor designed for a wide variety of applications. It is characterized by its robust performance, integrated circuit protection, and high current support for charging the battery. This application note offers a description of the MCP73213-G6XI/MF, its application field and the operating principle.

Overview of the MCP73213-G6XI/MF

The MCP73213-G6XI/MF PMIC – Battery Chargers is an integrated power co-processor that includes buck and boost DC-DC power converter, buck regulator, three-level battery charger, and programmable charger controller with built-in Short Circuit and thermal protection. The programmable charger controller is designed with state-of-the-art switching frequency and PWM control to minimize total power dissipation and battery life. The MCP73213-G6XI/MF integrates buck, boost and buck-boost power converters (DC-DC) with variable voltage outputs and up to 25V of input voltage, allowing it to be used in many different applications. It also includes a 3-level charging state machine, which optimizes charging and discharge of the battery, resulting in better capacity and life-span. The circuit includes Algorithm Monitors to protect against over voltage, over current and short circuit conditions. The device also includes analog and digital inputs and outputs, allowing the circuit to be easily customized to the application.

Application Areas of the MCP73213-G6XI/MF

The integrated MCP73213-G6XI/MF PMIC – Battery Chargers can be applied in many different application areas such as:

• Portable devices: portable medical, industrial, and consumer electronics.
• Industrial: industrial robots and CNC machines, intelligent meters, and industrial scale.
• Consumer electronics: notebook computers, digital cameras, and iPads.
• Automotive: automotive infotainment, ECU, telematics, and navigation systems.

Moreover, the integrated DC-DC controllers allow the MCP73213-G6XI/MF to be used in applications where the input voltage is not necessarily the same as the desired output voltage. In addition, the integrated voltage monitoring and temperature monitoring provide an extra layer of protection against battery failure and over voltage.

Working Principle of the MCP73213-G6XI/MF

The MCP73213-G6XI/MF PMIC – Battery Chargers works by employing a three-level battery charging algorithm. This algorithm allows for the charging of the battery in three different stages. The first stage is the Bulk Charge mode, in which the charger monitors the battery voltage and adjusts the charging current accordingly. The second stage is called Absorbtion mode, in which the charger ensures that the battery is fully charged and ceases to send any current to the battery. The third and final stage is called Equalization mode, in which the charger monitors the battery voltage and voltage gradient to ensure the battery is perfectly balanced.

The MCP73213-G6XI/MF also includes additional features for user convenience. These include an Over Current Protection (OCP) to protect against high instantaneous currents and Short Circuit Protection (SCP) to protect against unexpected short circuits. Furthermore, the circuit also contains a set of analog and digital inputs and outputs, which can be used to integrate the MCP73213-G6XI/MF with other circuits and easily measure current, voltage, and temperature.

Conclusion

The MCP73213-G6XI/MF PMIC – Battery Chargers is a comprehensive and integrated circuit for a wide variety of applications. It includes a set of buck, boost and buck-boost DC-DC controllers, a programmable charger controller, and a three-level battery charging algorithm. The device also includes Short Circuit Protection, Thermal Protection, and Analog/Digital input/outputs, allowing users to customize and optimize the performance of the circuit.

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