BQ24171RGYT

Battery Chargers Overview

The BQ24171RGYT is a standalone switch-mode lithium-ion/polymer battery charger IC from Texas Instruments. It operates within an input voltage range of 4.5 V to 17 V and delivers a maximum output current of 4 A. The device supports adjustable output voltages up to 13.5 V and functions across a temperature range of -40 °C to +85 °C. Packaged in a 24-pin VQFN (5.5x3.5 mm) surface-mount format, it integrates programmable charging profiles for single-cell applications.

Battery Chargers Feature Summary

• Integrates a synchronous buck converter for high-efficiency standalone charging without external power switches
• Supports programmable constant-current and constant-voltage charging algorithms for lithium-based chemistries
• Includes comprehensive protection mechanisms against over-temperature, over-voltage, and short-circuit conditions

Battery Chargers Applications

• Portable consumer electronics requiring single-cell lithium-ion or polymer battery charging
• Industrial handheld devices and tools utilizing compact power management solutions
• Medical equipment with strict size constraints and reliable battery management needs

Battery Chargers Procurement Notes

Verify the suffix RGYT corresponds to the specific tape-and-reel packaging configuration required for automated assembly processes. Confirm that the component meets RoHS compliance standards applicable to your manufacturing region. Ensure that the thermal pad connection on the VQFN package aligns with your PCB layout guidelines for optimal heat dissipation during high-current operation.

Battery Chargers Selection Notes

Select this component when designing systems requiring a compact, high-efficiency solution for single-cell batteries. It is suitable for applications where space efficiency is critical due to its small VQFN footprint. Consider the 4 A current capability and wide input voltage range for compatibility with various USB and wall adapter power sources.

Battery Chargers Part Context

This part belongs to the BQ2417x family of battery chargers, which includes variants like the BQ24170 and BQ24172. These devices share similar architectural features but may differ in specific current ratings or feature sets. The BQ24171 serves as a mid-range option within this series, balancing performance and complexity for standard portable applications.

Battery Chargers Replacement Considerations

The BQ24170RGYT and BQ24172RGYT are related parts within the same family. Verify if alternative current ratings or specific feature subsets in these substitutes meet your design requirements before switching.