BQ25505RGRR

Power Management - Specialized Overview

The BQ25505RGRR is an ultra-low power boost charger with battery management and autonomous power multiplexor from Texas Instruments. It operates within a supply voltage range of 120 mV to 4 V, delivering an output current of 100 mA. The device supports lithium iron phosphate (LiFePO4), lithium-ion, lithium polymer, and supercapacitor battery types. It features adjustable output voltage and is housed in a VQFN-20 package designed for surface mount installation. The component functions as a charge management solution for energy harvesting applications.

Power Management - Specialized Feature Summary

• Integrates an ultra-low power boost converter and battery management system for efficient energy harvesting.
• Includes an autonomous power multiplexor to manage power sources without external control logic.
• Supports multiple battery chemistries including LiFePO4, Li-ion, Li-polymer, and supercapacitors.

Power Management - Specialized Applications

• Wireless sensor networks requiring microwatt to milliwatt power management
• Thermoelectric generator (TEG) harvesting systems
• Photovoltaic (solar) energy harvesting modules

Power Management - Specialized Procurement Notes

Verify the specific suffix RGRR against the official Texas Instruments datasheet to confirm the VQFN-20 package and reel packaging configuration. Ensure compatibility with the target operating temperature range and input voltage requirements before procurement. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and avoid counterfeit components.

Power Management - Specialized Selection Notes

Select this component for applications demanding minimal start-up voltage and low quiescent current. It is suitable for systems where space is limited due to its compact VQFN-20 footprint. Consider the 100 mA output current limit when sizing storage elements. Verify that the input source can provide sufficient power above the 120 mV threshold for reliable operation.

Power Management - Specialized Part Context

The BQ25505RGRR belongs to the BQ25505 series of nano-power management solutions. It is designed to efficiently acquire and manage power from DC sources like solar or thermal generators. This IC addresses the needs of ultra-low power applications by integrating charging and power path management in a single small package.

Power Management - Specialized Replacement Considerations

The BQ25504 is a related device in the same family but offers different electrical characteristics and a VQFN-16 package. Substitution requires verification of input voltage ranges, output current capabilities, and pinout compatibility. Consult the official TI documentation for detailed comparison parameters before replacing the BQ25505RGRR with alternative models.