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MC33937 - Three phase field effect transistor pre-driver

General Description

The 33937A is a field effect transistor (FET) predriver designed for three phase motor control and similar applications.

It meets the stringent requirements of automotive applications and is fully AEC-Q100 grade 1 qualified.

Key Features

  • Extended operating range from 6.0 V to 58 V covers 12 V and 42 V systems.
  • Gate drive capability of 1.0 A to 2.5 A.
  • Fully specified from 8.0 V to 40 V, covers 12 and 24 V automotive systems.
  • Device protection against reverse charge-injection from CGD and CGS of external FETs.
  • Dead time is programmable via the SPI port.
  • Simultaneous output capability enabled via safe SPI command.
  • AEC-Q100 grade 1 qualified 3.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MC33937 Three phase field effect transistor pre-driver Rev. 14 — 18 November 2021 Product data sheet 1 General description The 33937A is a field effect transistor (FET) predriver designed for three phase motor control and similar applications. It meets the stringent requirements of automotive applications and is fully AEC-Q100 grade 1 qualified. The IC contains three high-side FET predrivers and three low-side FET predrivers. 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.