The Texas Instruments BQ24202DGNR is a highly efficient, single-cell lithium-ion battery charger designed to be used in a variety of portable applications. This compact and versatile integrated circuit (IC) provides a rich set of features to ensure safe and reliable charging operations for your electronic devices.

Key Features

• Charge Management: The BQ24202DGNR offers advanced charge management capabilities, which includes preconditioning of deeply discharged batteries, high-accuracy current and voltage regulation, automatic recharge, and charge termination.
• Programmable Charge Parameters: With the ability to program charge current and voltage settings through external resistors, this charger IC provides the flexibility needed to cater to various battery sizes and chemistries.
• High Efficiency: Designed for optimized power efficiency, the BQ24202DGNR reduces heat generation and power loss during the charging process, which is essential for extending battery life and conserving energy.
• Power Path Management: The IC integrates power path management that allows the system to be powered from the adapter when available, reducing battery charging and discharging cycles and extending battery life.
• Status Indicators: It includes status outputs that indicate the charging progress and completion, which can be used to drive LEDs or interface with a host microcontroller for more detailed battery monitoring.
• Thermal Protection: The device features an integrated thermal regulation function that reduces charge current in the event of excessive temperature rise, thus providing additional safety for the charging system.
• Compact Form Factor: The BQ24202DGNR comes in a small 8-pin MSOP (DGN) package, making it an ideal solution for space-constrained applications.

Applications

The BQ24202DGNR is suitable for a wide range of portable devices, such as smartphones, tablets, digital cameras, portable media players, and other USB-powered or portable equipment that require efficient charging solutions.

Technical Specifications

• Charge Voltage: Programmable up to 4.2V
• Charge Current: Up to 1.5A
• Input Voltage Range: 4.35V to 10V
• Operating Temperature Range: -40°C to 85°C
• Package Type: 8-pin MSOP (DGN)

For engineers and designers seeking a reliable and flexible charging solution, the Texas Instruments BQ24202DGNR offers an excellent balance of performance, integration, and ease of use, making it a go-to choice for modern portable applications.