MCP73213T-A6W/MF Integrated Circuits (ICs)

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An MCP73213T-A6W/MF is a battery charger PMIC, or power management integrated circuit, for use in applications that require charging of lithium-ion batteries. It is an integrated solution that provides the necessary protection and current control for lithium-ion and Lithium Polymer batteries.

This device provides a robust high input voltage range of up to 20V and is also capable of operating with low input voltage down to 3.4V. The device includes an intelligent charging capability that is programmable for charging current and recharge voltage circuitry. The battery can be either connected directly to the charger or via a dedicated power line using I2C commands. The MCP73213T-A6W/MF also contains a Safety Timer, Current Limit, Over Voltage Protection and Thermal Regulation, providing excellent protection and control while charging a battery.

The MCP73213T-A6W/MF is primarily used in portable applications such as tablets, smartphones and other electronic devices that utilize Lithium-ion/Lithium Polymer batteries, such as digital cameras, notebooks, game consoles and many other low-power applications. With its large input voltage range, low quiescent current, and small package size, the MCP73213T-A6W/MF is the ideal device for any application requiring efficient and reliable charging of Lithium-ion/Lithium Polymer batteries.

The working principle of the MCP73213T-A6W/MF is rather straightforward. It is an integrated power management IC that controls the charging of a battery at a programmed current or voltage. It contains an internal and external power switch, as well as a safety timer, current limit and over voltage protection, which provide the necessary protection and control during charging. The IC also contains an input voltage range of 3.4 to 20Vdc and an output current range of up to 1.5Amps.

The external power MOSFETs are connected in parallel to increase the available current to the battery.When the device powers up, the controller senses the input voltage and takes the appropriate actions based on the programmed settings and internal circuitry. The controller then sets the output charging current and voltage according to the programmed values, and starts to charge the battery.

During the charging process, the device monitors the battery voltage and current. It turns off the power switches to the battery and stops charging if any of the programmed safety limits is violated. The device also monitors the temperature of the battery and discontinues charging if the temperature sensor detects a rise above the programmed limit.

When the battery is fully charged, the current draw goes down and the device shuts off the power switch to the battery. Once the battery is disconnected from the system, the controller automatically restarts the charging cycle when the battery is reconnected.

The MCP73213T-A6W/MF is designed to provide a safe and efficient charging solution for a variety of applications. Its robust high input voltage range, low quiescent current and small package size make it an ideal solution for any application requiring reliable and efficient charging of Lithium-ion/Lithium Polymer batteries.

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