Wiring USB-C on Microchip MCP73831 a Single-Cell Fully Integrated Li-Ion / Li-Po Charge Management Controller

Microchip MCP73831 is a single-cell, fully integrated Li-Ion/Li-Polymer battery charger controller. It is designed to charge a single-cell Li-ion or Li-Polymer battery pack and is typically used in portable electronic devices such as mobile phones, tablets, and digital cameras.

The MCP73831 features an input voltage range of 4.5V to 6V, making it suitable for use with a USB port or a 5V power supply. It also has a charge termination feature that terminates the charging process when the battery is fully charged, preventing overcharging and extending battery life.

The MCP73831 is available in a range of packages including a 5-pin SOT-23, 8-pin MSOP, and 8-pin 2×3 DFN, making it easy to integrate into a variety of designs. It is also highly configurable, with options for charge current, pre-charge current, and termination voltage, allowing it to be tailored to the specific needs of the application. MCP73831 is typically used in portable electronic devices that require a single-cell Li-ion or Li-Polymer battery pack to power them. Some examples of these devices include:

• Mobile phones and smartphones
• Tablets and e-readers
• Digital cameras
• Portable media players and gaming devices
• Wireless headphones and earbuds
• Smartwatches and fitness trackers
• Cycling Lights
• Wearable Devices
• IOT Devices

In general, any device that requires a small, rechargeable battery can benefit from the use of the MCP73831 as a charging controller. Its small size, low cost, and flexibility make it a popular choice for designers looking to add battery charging functionality to their products.

Additionally, the MCP73831 can be used in a variety of other applications beyond portable electronics. For example, it can be used in battery-powered sensor nodes, remote controls, and other low-power IoT devices that require a rechargeable battery.

It is important to note that the above steps are general guidelines, and the specific implementation of the MCP73831 will depend on the requirements and specifications of the application. It is recommended to consult the MCP73831 datasheet and consult with a qualified engineer or designer to ensure that the implementation is appropriate and meets the requirements of the application.

Features of the MCP73831 include:

• Single-cell Li-Ion/Li-Polymer battery charging: The MCP73831 is designed to charge a single-cell Li-Ion or Li-Polymer battery pack.
• Input voltage range: The MCP73831 has an input voltage range of 4.5V to 6V, making it suitable for use with a USB port or a 5V power supply.
• Charge termination: The MCP73831 features charge termination to prevent overcharging and extend battery life.
• Highly configurable: The MCP73831 is highly configurable with options for charge current, pre-charge current, and termination voltage, allowing it to be tailored to the specific needs of the application.
• Small package size: The MCP73831 is available in a range of packages including a 5-pin SOT-23, 8-pin MSOP, and 8-pin 2×3 DFN, making it easy to integrate into a variety of designs.
• Thermal regulation: The MCP73831 has a thermal regulation feature that reduces the charge current if the junction temperature exceeds a specified threshold.
• Reverse battery protection: The MCP73831 has a built-in reverse battery protection diode to protect the battery from damage in the event of reverse polarity connection.