BQ25120AYFPT

Battery Chargers Overview

The BQ25120AYFPT 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 features an integrated buck converter utilizing DCS control for high efficiency at light loads. It supports programmable charge currents from 5mA to 300mA and operates from a 3.4V to 5.5V input range. Battery voltage regulation is configurable from 3.6V to 4.65V with 0.5% accuracy. The solution utilizes a small 2.5mm x 2.5mm WCSP package requiring only six external components.

Battery Chargers Feature Summary

• Integrates a high-efficiency buck converter with DCS control for extended light-load operation
• Provides power path management enabling ultra-low ship mode quiescent current
• Supports I2C communication for programmable charge parameters and system control
• Includes dedicated pins for status output and fault interrupts

Battery Chargers Applications

• Smart watches
• Wearable health monitors
• IoT sensor nodes

Battery Chargers Procurement Notes

Verify the specific suffix 'A' against the manufacturer's official documentation to confirm any distinct manufacturing lot or revision differences compared to standard variants. Ensure the DSBGA/WCSP package footprint matches the design constraints. Confirm RoHS compliance status through the latest datasheet release notes prior to final procurement authorization.

Battery Chargers Selection Notes

Select this component when minimal board space is critical due to its compact 2.5mm x 2.5mm footprint. Choose this IC for systems requiring precise battery voltage regulation and programmable termination currents via I2C. It is suitable for designs needing both charging and regulated output management within a single highly integrated solution.

Battery Chargers Part Context

This part belongs to the BQ2512x series of battery charge management solutions from Texas Instruments. The series is engineered specifically for portable electronics where low quiescent current and high integration are required. It consolidates multiple power management functions into a single chip to reduce component count and simplify system architecture.

Battery Chargers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.