BQ24125RHLR

Battery Chargers Overview

The BQ24125RHLR is a single-chip switchmode lithium-ion and lithium-polymer charge management IC from Texas Instruments. It operates with an input voltage range of 4.3 V to 16 V and supports up to three series cells, reaching a maximum battery voltage of 8.4 V. The device delivers a programmable constant-charge current of up to 2 A using a synchronous buck topology. Packaged in a 20-VQFN (3.5x4.5 mm) surface-mount format, it integrates power FETs and features enhanced electromagnetic interference performance for compact designs.

Battery Chargers Feature Summary

• Integrates synchronous buck converter and power FETs for high-efficiency charging
• Supports standalone operation with RC-settable control interfaces
• Includes overvoltage protection and thermistor-based temperature monitoring

Battery Chargers Applications

• Portable consumer electronics requiring compact battery charging solutions
• Industrial equipment utilizing multi-cell lithium-ion or polymer batteries
• Medical devices needing efficient and safe power management systems

Battery Chargers Procurement Notes

Verify the suffix RHLR corresponds to the reel packaging variant when ordering. Confirm that the specific revision matches the design requirements for thermal and electrical performance. Ensure compatibility with the intended PCB footprint and soldering profile for the 20-VQFN package. Cross-reference the datasheet for any updates regarding lead-free compliance and moisture sensitivity levels before finalizing procurement plans.

Battery Chargers Selection Notes

Select this component for applications requiring integrated power switches to reduce external bill of materials. It is suitable for designs supporting one to three series cells where space constraints are critical. Consider the enhanced EMI performance if operating in sensitive environments. Verify that the required charge current does not exceed the 2 A internal limit and that the input supply remains within the specified operational range.

Battery Chargers Part Context

This part belongs to the bqSWITCHER family of battery chargers, designed for high efficiency and small form factors. It shares architectural similarities with the BQ24120 and BQ24123 but offers support for up to three series cells, whereas other variants may be limited to fewer cells. The family emphasizes integrated protection features and simplified implementation for standalone charging systems.

Battery Chargers Replacement Considerations

The BQ24120RHLT and BQ24123RHLT are related parts within the same family. However, they differ in supported cell counts; verify that the alternative part supports the required number of series cells for the specific application before substitution.