BQ25619RTWT

Battery Chargers Overview

The BQ25619RTWT is an I2C-controlled single-cell buck battery charger and power path management IC from Texas Instruments. It integrates a 1.5 A switch-mode charger, boost converter, and voltage protection in a WQFN-24 package. The device supports input voltages from 4 V to 13.5 V and delivers up to 1.5 A output current with a regulated output of 4.52 V. It features ultra-low termination current (20 mA) for full capacity charging in wearables and reduces battery leakage to 6 µA in transport mode.

Battery Chargers Feature Summary

• Integrates switch-mode charging, boost regulation, and reverse blocking FETs for compact system design
• Supports multiple input sources including USB host ports, chargers, and wireless power adapters
• Provides programmable power path management to maintain system operation during low battery conditions
• Enables flexible configuration via I2C serial interface for customized charging profiles

Battery Chargers Applications

• Wearable electronic devices requiring full battery capacity utilization
• Wireless earbuds and charging cases
• Portable consumer electronics powered by lithium-ion or lithium-polymer cells
• Systems utilizing standard USB or high-voltage adapter inputs

Battery Chargers Procurement Notes

Verify the specific suffix RTWT corresponds to the cut tape packaging format required for your assembly line. Confirm that the WQFN-24 footprint matches your PCB layout guidelines. Ensure compatibility with your I2C bus voltage levels and check for any recent product lifecycle notices regarding availability or obsolescence before finalizing procurement plans.

Battery Chargers Selection Notes

Select this component when designing systems that require integrated power path management alongside single-cell charging. It is suitable for applications needing support for various input sources while maintaining high efficiency through switch-mode operation. Consider the low static current requirements if extended shelf life is critical for the end product.

Battery Chargers Part Context

This part belongs to the BQ25619 family of battery charge managers designed for space-constrained portable devices. It combines charging and system power management functions into a single solution, reducing bill of materials count. The device is manufactured by Texas Instruments and is intended for use in personal electronics where efficient energy management and small form factors are prioritized.

Battery Chargers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.