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A4939 - Automotive Three Phase MOSFET Driver

General Description

The A4939 is a three-phase controller for use with N-channel external power MOSFETs and is specifically designed for automotive applications.

Key Features

  • High current 3-phase gate drive for N-channel MOSFETs.
  • Cross-conduction protection.
  • 5.5 to 50 V supply voltage range.
  • Regulated logic supply voltage output option.
  • Motor phase short to supply and short to ground detection.
  • Undervoltage, overtemperature monitors.
  • Low current Sleep mode option.

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Other Datasheets by Allegro MicroSystems

Part Number Description
A4933 Automotive 3-Phase MOSFET Driver
A4935 Automotive 3-Phase MOSFET Driver
A4937 Automotive 3-Phase MOSFET Driver
A4938 3-Phase Brushless DC Motor Pre-Driver
A4900 High Voltage Three Phase Gate Driver

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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A4939 Automotive Three Phase MOSFET Driver FEATURES AND BENEFITS • High current 3-phase gate drive for N-channel MOSFETs • Cross-conduction protection • 5.5 to 50 V supply voltage range • Regulated logic supply voltage output option • Motor phase short to supply and short to ground detection • Undervoltage, overtemperature monitors • Low current Sleep mode option APPLICATIONS • Electronic power steering (EPS, EHPS, EAS) • Hydraulic pumps • Engine cooling fan • Gearbox actuator PACKAGES Not to scale 28-pin TSSOP with exposed thermal pad (LP package) 28-contact QFN 5 mm × 5 mm × 0.85 mm (ET package) DESCRIPTION The A4939 is a three-phase controller for use with N-channel external power MOSFETs and is specifically designed for automotive applications.