BQ25155YFPR

Battery Chargers Overview

The BQ25155YFPR is a linear battery charger from Texas Instruments designed for single-cell lithium-ion, lithium polymer, and lithium iron phosphate batteries. It operates within an input voltage range of 3.15 V to 5.2 V and delivers a regulated output current of 500 mA. The device supports programmable output voltages between 600 mV and 3.7 V. Packaged in a DSBGA-20 format, it functions reliably across temperatures from -40°C to +85°C.

Battery Chargers Feature Summary

• Supports charging for lithium-ion, lithium polymer, and lithium iron phosphate chemistries
• Integrates thermal regulation to manage heat dissipation during operation
• Features automatic recharge capability triggered by voltage drop below threshold

Battery Chargers Applications

• Portable consumer electronics requiring single-cell power management
• Wearable devices with limited space constraints
• IoT sensors utilizing LiFePO4 or Li-ion cells

Battery Chargers Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and temperature grade. Ensure compatibility with target battery chemistry specifications before integration. Confirm RoHS compliance status through manufacturer documentation. Validate pinout alignment with PCB layout requirements.

Battery Chargers Selection Notes

Select this component for applications requiring low external component count and simple linear charging topology. Suitable for systems where input voltage remains close to battery voltage. Consider thermal performance limits when designing for high ambient temperatures or enclosed enclosures.

Battery Chargers Part Context

Part of the BQ2515x series focusing on compact linear charging solutions. Designed to replace discrete charging circuits with integrated protection and regulation features. Commonly used in space-constrained portable devices where efficiency is secondary to simplicity and cost.

Battery Chargers FAQ

Does the BQ25155YFPR support lithium iron phosphate batteries?

Yes, the device explicitly supports lithium iron phosphate (LiFePO4) alongside lithium-ion and lithium polymer chemistries.

What is the minimum operating input voltage?

The minimum operating input voltage is 3.15 V.