TIDA-01574 is a reference design for high-efficiency power stealing for smart thermostats and other building automation equipment. In general, power stealing enables to extend battery life of Wi-Fi enabled smart thermostats by drawing power from 24-V AC when the HVAC load is off. This power-stealing design provides smooth and highly-efficient way to steal power from 24-V AC without interrupting the operation of HVAC load. In this design, TPS2662 - 60V eFuse provides accurate current-limiting and over-voltage protection to enable highly-efficient power stealing.
Features
- Highly-efficient 24-V AC power stealing
- Cost-efficient integrated design
- Enhanced battery life
- Fast and accurate current limit
- Accurate over-voltage protection