The BQ24071RHLRG4 is a highly integrated and efficient solution for lithium-ion battery charging, designed and manufactured by Texas Instruments. This advanced single-cell Li-Ion battery charger is optimized to operate with USB power sources or AC adapters, making it a versatile choice for a wide range of portable applications.

Key Features

• Input Voltage Range: The device supports an input voltage range from 4.35V to 16V, allowing it to work with various power supplies.
• Charge Current: It offers programmable charge current up to 1.5A through an external resistor, catering to different battery capacities and charging speed requirements.
• Integrated Power FET: The BQ24071RHLRG4 comes with an integrated power FET and current sensor, which simplifies the circuit and reduces external component count.
• Thermal Regulation: To ensure safety, the device features thermal regulation that prevents the charger from overheating during operation.
• Charge Status Indicators: It includes charge status outputs that can be used to drive LEDs or interface with a host processor to indicate the battery charge status.

Protection Features

• Precharge Conditioning: For deeply discharged batteries, the BQ24071RHLRG4 provides a pre-charge feature to safely initiate the charging process.
• Safety Timers: Built-in safety timers help to terminate charge after a predetermined period, preventing overcharging and enhancing battery life.
• Overvoltage Protection: The device includes overvoltage protection to safeguard the battery from receiving excessive voltage.

Applications

The BQ24071RHLRG4 is suitable for a variety of applications that require efficient charging of single-cell Li-Ion batteries. This includes smartphones, digital cameras, portable media players, and other handheld devices. Its small footprint and comprehensive feature set also make it an excellent choice for portable medical devices and wearable technology.

Package and Quality

This product is offered in a compact 20-VQFN package, designed for space-constrained applications. Texas Instruments' commitment to quality ensures that the BQ24071RHLRG4 meets the highest standards for performance and reliability, making it a trusted choice for designers and manufacturers in the industry.