BQ24079RGTR

Battery Chargers Overview

The BQ24079RGTR is a standalone single-cell lithium-ion battery charger and power-path management IC manufactured by Texas Instruments. It supports input voltages from 4.3 V to 6.4 V and delivers up to 1.5 A of charge current with a regulated output voltage of 4.1 V. The device operates within an ambient temperature range of -40 °C to +85 °C and features a low quiescent supply current of 1.5 mA. It is housed in a compact 16-pin VQFN package designed for surface-mount installation.

Battery Chargers Feature Summary

• Integrates system power path management to prioritize system load while charging the battery
• Supports USB-friendly operation with programmable input current limiting to comply with USB-IF surge specifications
• Includes dynamic power management (VIN-DPM) to prevent damage from misconfigured USB power sources
• Provides comprehensive fault protection against overtemperature, overvoltage, reverse current, and short circuits

Battery Chargers Applications

• Portable consumer electronics powered by single-cell lithium-ion batteries
• USB-powered devices requiring integrated charging and power distribution
• Space-constrained portable applications utilizing linear charging topologies

Battery Chargers Procurement Notes

Verify the specific suffix 'RGTR' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the 16-VQFN footprint matches the target PCB layout dimensions. Ensure compatibility with the intended operating temperature range of -40 °C to +85 °C for the final application environment.

Battery Chargers Selection Notes

Select this component when a single-cell lithium-ion solution is required with a maximum charge current of 1.5 A and a fixed 4.1 V output. It is suitable for designs needing integrated power path management without external MOSFETs. Consider alternative models if higher charge currents or different output voltage profiles are necessary for the specific battery chemistry.

Battery Chargers Part Context

This part belongs to the BQ2407x family of USB-friendly Li-Ion battery chargers. It shares functional similarities with variants like the BQ24076 and BQ24073 but differs in specific electrical parameters such as output voltage regulation and input voltage thresholds. The family is designed for portable applications requiring efficient power management from USB or AC adapter sources.

Battery Chargers Replacement Considerations

The BQ24079RGTT is a pin-compatible alternative offering identical functionality in a tray package format. Designers requiring reel packaging should verify that the RGTR suffix meets their manufacturing requirements.