Electronically Commutated Motor Reference Design for HVAC Blowers with Low BOM Cost
Description
The TIDA-01353 reference design is a discrete MOSFET based three-phase ECM control module for driving brushless (BLDC) motors rated up to 375W in HVAC blower applications using a sensorless trapezoidal control method. The cycle-by-cycle overcurrent protection feature protects the power stage from over currents and the board can work up to an ambient temperature of 85 °C. This design also incorporates opto-isolation for 5 preset blower speed terminals available to the user: and is a direct replacement reference design for permanent split capacitor (PSC) motors.
Features
- On-board temperature sensingOpto-coupling for circuit isolationLow cost: high efficiency sensorless ECM motor controllerCurrent sensing using single shunt reistor on DC busSensorless trapezoidal control using the TI InstaSPIN-BLDC back-EMF integration method
Applications
- HVAC controller
- Door operator drive control
- HVAC motor control
- HVAC valve & actuator control
- Appliances pumps & fans
- Appliances: compressor