A3921 - Automotive Full Bridge MOSFET Driver

Product Overview

Allegro

Datasheet Details

Part number	A3921
Manufacturer	Allegro
File Size	1.12 MB
Description	Automotive Full Bridge MOSFET Driver
Datasheet	A3921 Datasheet
Additional preview pages of the A3921 datasheet.

Product details

Description

The A3921 is a full-bridge controller for use with external N‑channel power MOSFETs and is specifically designed for automotive applications with high-power inductive loads, such as brush DC motors.

Features

High current gate drive for N-channel MOSFET full bridge.
High-side or low-side PWM switching.
Charge pump for low supply voltage operation.
Top-off charge pump for 100% PWM.
Cross-conduction protection with adjustable dead time.
5.5 to 50 V supply voltage range.
Integrated 5 V regulator.
Diagnostics output.
Low current sleep mode.
AEC-Q100 qualified Package: 28-pin TSSOP with exposed thermal pad (suffix L.

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Published: Dec 6, 2023 |