BQ24172RGYT

Battery Chargers Overview

The BQ24172RGYT is a standalone switch-mode battery charger IC designed for lithium-ion and lithium-polymer batteries with one to three cells. It supports an input voltage range of 4.5 V to 17 V and delivers a maximum output current of 4 A. The device features adjustable output voltage and operates within a temperature range of -40 °C to +85 °C. Packaged in a 24-pin VQFN (5.5x3.5 mm) with exposed pad, it integrates protection against overcurrent, overtemperature, and overvoltage conditions.

Battery Chargers Feature Summary

• Supports charging of single-cell to triple-cell lithium-ion and lithium-polymer battery packs
• Integrates comprehensive fault protection including overcurrent, overtemperature, and overvoltage safeguards
• Features programmable charge current and adjustable output voltage settings

Battery Chargers Applications

• Portable electronic devices requiring multi-cell battery management
• Industrial equipment utilizing lithium-based power sources
• Medical devices needing reliable standalone charging solutions

Battery Chargers Procurement Notes

Verify the specific suffix RGYT corresponds to the 24-VQFN package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure thermal design accounts for the exposed pad requirement inherent to this package type for optimal heat dissipation during high-current operation.

Battery Chargers Selection Notes

Select this component for applications requiring up to 4 A charging capability for 1S to 3S battery configurations. It is suitable where a compact surface-mount solution is preferred over discrete designs. Consider the 17 V maximum input limit when designing power supply interfaces. Evaluate thermal performance requirements based on the expected ambient operating conditions and PCB copper area available for heat spreading.

Battery Chargers Part Context

This part belongs to the BQ2417x family of battery chargers from Texas Instruments. It shares functional similarities with the BQ24171 but is distinguished by its support for up to three series-connected cells. The family targets portable electronics and industrial applications requiring efficient, space-constrained charging management without external MOSFETs.

Battery Chargers Replacement Considerations

BQ24171RGYT is a documented alternative within the same family, though it typically supports fewer series cells. Verify cell count compatibility and pin-to-pin correspondence before substitution.