Texas Instruments

BQ25120YFPR  

Battery Chargers

BQ25120YFPR Description

The BQ25120YFPR is a single-cell, lithium-ion/polymer battery charger IC from Texas Instruments, designed for applications requiring efficient and reliable battery management. With a maximum charge current of 300mA and a programmable current feature, this IC offers flexibility and precision in charging. The BQ25120YFPR operates with a battery pack voltage of 4.2V and can handle a supply voltage up to 5.5V, ensuring compatibility with various power sources.

BQ25120YFPR Features

• Voltage and Current Management: The BQ25120YFPR is designed to handle a battery pack voltage of 4.2V and can manage a maximum charge current of 300mA, providing efficient power transfer to the battery.
• Fault Protection: This IC includes over-temperature, over-voltage, and short-circuit protection to safeguard the battery and the charging system from potential damage.
• Interface: An I2C interface allows for easy integration with microcontrollers and other digital systems, enabling advanced control and monitoring of the charging process.
• Programmable Features: The ability to program the charge current allows for customization based on specific application requirements, enhancing the adaptability of the BQ25120YFPR.
• Package: The 25DSBGA package is a compact surface-mount option, suitable for space-constrained designs.
• Regulatory Compliance: The BQ25120YFPR is REACH unaffected and RoHS3 compliant, ensuring environmental and health safety standards are met.

BQ25120YFPR Applications

The BQ25120YFPR is ideal for a variety of applications where efficient and safe battery charging is critical. Some specific use cases include:

• Portable Electronics: Smartphones, tablets, and other handheld devices can benefit from the BQ25120YFPR's compact design and efficient charging capabilities.
• IoT Devices: Internet of Things (IoT) devices, which often require long battery life and efficient power management, can leverage the BQ25120YFPR's programmable features for customized charging profiles.
• Wearable Technology: Smartwatches and fitness trackers can utilize the BQ25120YFPR for reliable and efficient battery charging within their compact form factors.

Conclusion of BQ25120YFPR

The BQ25120YFPR from Texas Instruments stands out for its combination of efficiency, programmability, and robust fault protection. While it is not recommended for new designs due to its "Not For New Designs" status, it remains a reliable choice for existing applications that require a single-cell lithium-ion/polymer battery charger with advanced features and proven performance. Its compact form factor, I2C interface, and comprehensive protection mechanisms make it suitable for a wide range of electronic devices where battery management is paramount.

BQ25120YFPR Documents

Download datasheets and manufacturer documentation for BQ25120YFPR

Images :

Mechanical Outline Drawing      

PCN :

BQ25120YFPx and BQ25121YFPx Design Change and Datasheet Updates (PDF)       Product Change Notification (PDF)      

Application Notes :

Improved Fast Charge Using the bq25120 Adjustible VBATREG Charge Current TS