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TIDA-00525
12V BLDC Server Fan with Sensorless Sinusoidal Control
TIDA-00525
Overview
This is a reference design for a 12V 3-phase brushless DC fan, intended for server cooling applications. It is based on a single IC controller, the DRV10975, which drives sensorless BLDC motors with sinusoidal current that minimizes acoustic noise and torque ripple. The design requires no microcontroller or firmware, enabling a faster time to market.
Features
- Cost-optimized and high performance.
- Runs Sunon's standard off the shelf BLDC fan (SG40281B1), and PCB matches the form factor.
- Supports 20k RPM with 12V 7W input.
- Sinusoidal sensor-less control at 25kHz for minimized torque ripple and audible noise.
- Flexible support across other fan models with its tunable register settings.
- Design has been built and proven.
Industrial
- Air conditioner indoor unit
- Automotive interface & communications HIL tester
- Cooking top
- DC fast charging station
- DC wallbox charger
- Integrated single chip BLDC drive (<60V)
- Near infrared (NIR) spectrometer - benchtop
- Oven
- Professional video camera
- Single phase wireless EV charging station
- Three phase wireless EV charging station
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Design files & products
Design files
Download ready-to-use system files to speed your design process.
TIDU860.PDF (574 K)
Test results for the reference design, including efficiency graphs, test prerequisites and more
TIDRDG3.PDF (136 K)
Detailed schematic diagram for design layout and components
TIDRDG4.PDF (198 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDRDG5.PDF (61 K)
Detailed overview of design layout for component placement
TIDRDG7.ZIP (150 K)
Files used for 3D models or 2D drawings of IC components
TIDC973.ZIP (149 K)
Design file that contains information on physical board layer of design PCB
TIDRDG6.PDF (300 K)
PCB layer plot file used for generating PCB design layout
Start development
Technical documentation
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| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | TIDA-00525 Test Results | Mar. 17, 2015 |
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