A BLDC fan controller PCB should be selected against its operating conditions, not just its advertised power rating. A structured technical brief reduces prototype iterations and helps ensure the final controller meets user expectations in the field.
Electrical and motor inputs
- Rated and operating voltage range
- Motor power, current, pole count, and feedback method
- Target speed range and low-speed start-up requirement
- Load characteristics, environment, and expected duty cycle
Functional requirements
Document speed control method, reverse operation, lighting, timer functions, remote or wall control, smart connectivity, fault indicators, and local-control fallback. These requirements drive both hardware I/O and firmware scope.
Reliability and manufacturability
Protection functions should cover abnormal current, voltage, temperature, stall, and operation under expected supply variation. For volume production, specify test points and coverage for ICT, FCT, AOI, functional verification, and aging.
Use the checklist in a project enquiry
Submit the information with a motor data sheet or sample. It enables a faster engineering review and a more accurate production recommendation.