Texas Instruments' bq25504 is the first of a new family of intelligent integrated energy harvesting nano-power management solutions that are well-suited for meeting the special needs of ultra-low-power applications. The product is specifically designed to efficiently acquire and manage the µW to mW of power generated from a variety of DC sources such as photovoltaic or thermal electric generators. The bq25504 is the first device of its kind to implement a highly efficient boost converter/charger targeted toward products and systems including wireless sensor networks (WSN) which have stringent power and operational demands. The design of the bq25504 starts with a DC/DC boost converter/charger that requires only microwatts of power to begin operating.
Features
- Ultra-low-power with high-efficiency DC/DC boost converter/charger
- Programmable dynamic maximum power point tracking (MPPT)
- Energy storage
- Battery charging and protection
- Battery status output
Applications
- Energy harvesting
- Solar charger
- Thermal electric generator (TEG) harvesting
- Wireless sensor networks (WSN)
- Industrial monitoring
Evaluation Module Description
- Ultra-low-power boost converter/charger with battery management for energy harvesting applications
- Resistor-programmable settings for under voltage, over voltage providing flexible battery management; POTs included for fine-tuning the settings (not populated)
- Programmable push-pull output indicator for battery status (VBAT_OK)
- Test points for key signals available for testing purpose - easy probe hook-up
- Jumpers available - easy to change settings
