BQ25120YFPT

Battery Chargers Overview

The BQ25120YFPT is a highly integrated battery charge management IC designed for wearable devices and IoT applications. It integrates a linear charger, regulated output, load switch, manual reset with timer, and battery voltage monitor. The device supports charge currents from 5mA to 300mA and operates from an input voltage range of 3.4V to 5.5V. Key features include a configurable 300mA buck regulator with 700nA typical quiescent current, up to 300-mA charge current, and 0.5% accurate battery voltage regulation configurable from 3.6V to 4.65V. It utilizes I2C communication control and is housed in a 2.5mm × 2.5mm WCSP package.

Battery Chargers Feature Summary

• Integrates linear charger, regulated output, load switch, manual reset with timer, and battery voltage monitor
• Configurable 300mA buck regulator with low quiescent current for extended light load efficiency
• Supports charge currents from 5mA to 300mA with programmable parameters via I2C interface
• Enables power path management for system powering and battery charging with minimal ship mode quiescent current

Battery Chargers Applications

• Smart watches
• Wearable devices
• IoT devices

Battery Chargers Procurement Notes

Verify the specific suffix 'YFPT' against the official Texas Instruments datasheet to confirm package type (WCSP) and temperature rating. Ensure compatibility with I2C control requirements and input voltage ranges (3.4V-5.5V). Check for obsolescence status as some sources indicate related models may be restricted for new designs. Confirm RoHS compliance and lead-free status through manufacturer documentation.

Battery Chargers Selection Notes

Select this component for applications requiring high integration in small footprints like wearables. Consider the 700nA quiescent current for battery life optimization. Evaluate the need for programmable charge termination and voltage regulation accuracy (0.5%). Ensure the design supports I2C communication for parameter configuration. Verify thermal performance within the specified operating temperature range.

Battery Chargers Part Context

The BQ25120 belongs to Texas Instruments' family of integrated battery charge management solutions. It is engineered to minimize external component count, requiring only six external components for a complete solution. This contrasts with discrete charging approaches, offering a compact alternative for space-constrained portable electronics where low power consumption and precise charge management are critical.

Battery Chargers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult Texas Instruments documentation for potential cross-references or updated series replacements.