24-V AC Power Stage With Wide Vin Converter and Battery Backup Reference Design for Smart Thermostat
Description
The TIDA-01358 reference design provides a low BOM cost: high efficiency power stage solution for smart thermostats and other gateway building automation end equipment. This power stage takes a 24Vac input and produces a 5V and 3.3V output rail which can power additional point-of-load converters if added. The design provides LiPo battery charging and seamless switching to battery power during a 24Vac brownout. The power-path capability provides battery power assistance allowing system load transient to exceed the current limit of the 24Vac to DC system: allowing a lower cost Wide Vin buck to be utilized.
Features
- Battery backupIndependent battery charging and load pathDynamic power path/battery power assistHigh efficiency over entire load current rangeUSB over-curent compliant
Applications
- Video doorbell
- HVAC gateway
- Thermostat
- HVAC controller
- Electronic smart lock
- Fire alarm control panel (FACP)
- HVAC fluid leak detector
- Thermal imaging camera
- IP network camera
Product Categories
- Power management