BQ25155YFPT

Battery Chargers Overview

The BQ25155YFPT is a highly integrated battery charge management solution manufactured by Texas Instruments. It supports lithium-ion and lithium-polymer cell chemistries with an adjustable output voltage range of 3.6 V to 4.65 V. The device delivers a maximum output current of 300 mA and operates within an input supply voltage range of 3.4 V to 5.5 V. It utilizes a DSBGA-25 package for surface mount installation and functions across a temperature range of -40°C to +85°C.

Battery Chargers Feature Summary

• Integrates buck converter, LDO, and linear charger stages for flexible power path management
• Supports I2C control interface for programmable charging parameters
• Includes JEITA battery temperature monitoring via thermistor pin
• Provides comprehensive protection features including OVP, UVLO, and thermal regulation

Battery Chargers Applications

• Wearable electronic devices
• Portable medical equipment
• Small IoT sensors

Battery Chargers Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and tape/reel specifications. Ensure compatibility with your system's I2C addressing and thermal requirements before finalizing procurement. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Battery Chargers Selection Notes

Select this component when a compact solution combining buck conversion and linear charging is required for single-cell lithium batteries. The DSBGA-25 package suits space-constrained designs. Verify that the 300 mA output current meets the target battery capacity charging profile and that the 5.5 V maximum input voltage aligns with the system power source.

Battery Chargers Part Context

This device belongs to the BQ251xx series of battery charge management ICs from Texas Instruments. These components are designed for applications requiring high integration and low quiescent current. The BQ25155 variant specifically combines multiple power stages to simplify board layout and reduce external component count compared to discrete solutions.

Battery Chargers Replacement Considerations

Consult official Texas Instruments substitution guides for verified alternatives. Generic equivalents may not match the integrated buck-LDO-linear architecture or I2C functionality.