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1 design file
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Printed Circuit Boards and Schematics
KEA128BLDCRD Board Schematics
KEA128-3-Phase Sensorless BLDC Reference Design
This motor control reference design is based on a KEA128 32-bit Arm® Cortex®-M0+ automotive MCU. It is an example of a 3-phase sensorless brushless DC (BLDC) motor control solution using a six-step commutation process, including closed-loop speed control and dynamic motor current limitation.
Product Details
Supported Devices
Processors and Microcontrollers
KEA Automotive MCUs
- KEA: Ultra-Reliable KEA Automotive Microcontrollers (MCUs) based on Arm® Cortex®-M0+ Core
Power Management
Pre-Drivers
- MC33937: 3-Phase Field Effect Transistor Pre-Driver
Interfaces
Automotive LIN Solutions
- MC33903: SBC Gen2 with High-Speed CAN and LIN
Features
KEA128
- MCU with low-power Arm Cortex-M0+ core
- 8–128 KB of embedded flash
- Excellent EMC/ESD
- High temperature and low radiated emissions
MC33937
- Field effect transistor (FET) pre-driver designed for three phase motor control
- Contains three high side FET pre-drivers and three low side FET pre-drivers
- Both 5.0 and 3.0 logic level inputs accepted
MC33903
- Advanced power management unit for the MCU
- Additional integrated circuits such as sensors and CAN transceivers
Functionality
- Sensorless control using the back-EMF zero-crossing detection
- Closed-loop speed control
- Dynamic motor current limitation
- DC-bus overvoltage, undervoltage, and overcurrent fault detection
Interfaces
- LIN and CAN connectivity support
Debugging
- OpenSDA debug interface (including USB to UART bridge)
Application
- Application built upon the functions provided by Automotive Math and Motor Control Library Set
- Integrated FreeMASTER run-time debugging tool for instrumentation/visualization
Documentation
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Design Resources
Software
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1-5 of 9 software files
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Application Example Software
KEA128BLDCRD Application Software Package
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BSPs and Device Drivers
LIN2.x and SAE J2602 Stack
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BSPs and Device Drivers
MSCAN driver for Kinetis EA devices
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Safety and Security Software
Structural Core Self-Test (SCST) Library
Note: For better experience, software downloads are recommended on desktop.
Training
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