8-bit General Purpose MP MCUs
Design Files
Receive the full breakdown. See the product footprint and more in the eCad file.
3-Phase Field Effect Transistor Pre-Driver
The NXP® MC33937A is a Field Effect Transistor (FET) pre-driver designed for three phase motor control and similar applications.
- The integrated circuit (IC) uses SMARTMOS® technology
- The IC contains three High Side FET pre-drivers and three Low Side FET pre-drivers
- Three external bootstrap capacitors provide gate charge to the High Side FETs
- The IC interfaces to a MCU via six direct input control signals, an SPI port for device setup and asynchronous reset, enable and interrupt signals
- Both 5.0 and 3.0 V logic level inputs are accepted and 5.0 V logic level outputs are provided
- Processor Expert® component for MC33937 enables rapid embedded application development
Product Details
Features
Key Features
- Fully specified from 8.0 to 40 V covers 12 and 24 V automotive systems
- Extended operating range from 6.0 to 58 V covers 12 and 42 V systems
- Greater than 1.0 A gate drive capability with protection
- Protection against reverse charge injection from CGD and CGS of external FETs
- Includes a charge pump to support full FET drive at low battery voltages
- Deadtime is programmable via the SPI port
- Load current(IL) 1 A (Typ)
- 6 channels
- Drain-to-source on resistance 5500 mOhm RDS(ON) (Typ)
- Parallel and SPI Interface and Input Controllers
Product Longevity Program
- This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The MC33937 is included in the 15-year program
Related products
3-Phase Brushless Motor Pre-Driver
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Documentation
Quick reference to our documentation types.
1-5 of 10 documents
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Application Note
AN2409, Small Outline Integrated Circuit (SOIC) Package - Application NoteFeatured
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Data Sheet
MC33937, Three phase field effect transistor pre-driver - Data sheetFeatured
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Errata
MC33937, Mask R15N - ErrataFeatured
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Application Note
AN3670, Implementing a DSI Network Using the MC33781 and the MC33784
Design Resources
Hardware
Quick reference to our
board types.
1-5 of 16 hardware offerings
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Evaluation and Development BoardsEvaluation Kit - 33937, Three-Phase FET Pre-DriverFeatured
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Evaluation and Development BoardsEvaluation Kit - USB-SPI Interface, MC68HC908JW32, DongleFeatured
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Evaluation and Development BoardsDSC MC56F84789 Motor and Power Control Tower System ModuleFeatured
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Evaluation and Development BoardsLow-Voltage, 3-Phase Motor Control Tower® System ModuleFeatured
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Evaluation and Development BoardsMotor Control Shield for DEVKITFeatured
Software
Quick reference to our software types.
3 software files
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Configuration Tools
SPI Generator (SPIGen) Software
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Configuration Tools
Embedded Component: Three Phase Motor Control for MC33937
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Application Example Software
Embedded SW: Three-Phase Brushless Motor Pre-Driver Software Driver for GD3000, MC33937 and MC34937
Note: For better experience, software downloads are recommended on desktop.