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A3938 - Three-Phase Power MOSFET Controller

Product Overview

Allegro MicroSystems

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A3938 Three-Phase Power MOSFET Controller by Allegro MicroSystems - Datasheet Preview — Datasheet preview – A3938

Datasheet Details

Part number	A3938
Manufacturer	Allegro MicroSystems
File Size	663.75 KB
Description	Three-Phase Power MOSFET Controller
Datasheet	A3938 Datasheet
Additional preview pages of the A3938 datasheet.

Product details

Description

The A3938 is a three-phase, brushless DC motor controller.

It has a high-current gate drive capability that allows driving of a wide range of power MOSFETs and can support motor supply voltages to 50 V.

Features

Drives a wide range of N-channel MOSFETs.
Low-side synchronous rectification.
Power MOSFET protection.
Adjustable dead time for cross-conduction protection.
Selectable coast or dynamic brake on power-down or RESET input.
Fast/slow current decay modes.
Internal PWM current control.
Motor lead short-to-ground protection.
Internal 5 V regulator.
Fault diagnostic output.
Thermal shutdown.
Undervoltage protection Package 38-pin TSSOP (suffi.

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Published: Feb 23, 2015 |