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Product Detailed Parameters
- Description：MOTOR DRIVER, 3 PHASE FET PRE-DR
- Series：*
- Mfr：Freescale Semiconductor
- Package：Bulk
- Motor Type - Stepper：-
- Motor Type - AC, DC：-
- Function：-
- Output Configuration：-
- Interface：-
- Technology：-
- Step Resolution：-
- Applications：-
- Current - Output：-
- Voltage - Supply：-
- Voltage - Load：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The MC33937APEK is a three-phase field-effect transistor (FET) pre-driver designed for motor control applications. It utilizes SMARTMOS technology and integrates three high-side and three low-side FET pre-drivers. The device accepts 5.0 V or 3.0 V logic level inputs and provides 5.0 V logic level outputs. It features an SPI port for configuration, including programmable dead time, and supports asynchronous reset, enable, and interrupt signals. External bootstrap capacitors supply gate charge to the high-side FETs.
Feature Summary
- Integrates three high-side and three low-side FET pre-drivers using SMARTMOS technology
- Includes a charge pump to support full FET drive at low battery voltages
- Features protection against reverse charge injection from external FET capacitances
- Allows programmable dead time via the SPI interface
Applications
- Three-phase motor control systems
- Automotive powertrain applications
- Industrial motor drives
Procurement Notes
Verify the manufacturer source, as Rochester Electronics may distribute this part. Confirm the package type matches the SSOP-32 specification with 0.65 mm pitch. Ensure the lead-free status aligns with RoHS requirements. Check for any specific revision differences compared to the standard MC33937 datasheet.
Selection Notes
Select this component when a dedicated pre-driver for three-phase FETs is required. It is suitable for systems needing integrated protection against reverse charge injection and low-voltage operation support. The SPI interface allows for flexible configuration of dead time and safety features without additional discrete components.
Part Context
This part belongs to the Freescale Semiconductor MC33937 family of three-phase FET pre-drivers. It is functionally similar to the MC33937 but includes specific suffix designations for packaging and compliance. The device is widely used in automotive environments requiring robust gate driving capabilities.
Replacement Considerations
The MC33937APEK is a variant of the MC33937. Verify pinout compatibility and electrical specifications before substitution. Other members of the MC33937 family may offer different packaging options.
