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A3921 - Automotive Full Bridge MOSFET Driver

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.

📥 Download Datasheet

Datasheet Details

Part number A3921
Manufacturer Allegro
File Size 1.12 MB
Description Automotive Full Bridge MOSFET Driver
Datasheet download datasheet A3921 Datasheet

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A3922 Automotive Full-Bridge MOSFET Driver
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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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A3921 Automotive Full Bridge MOSFET Driver FEATURES AND BENEFITS • 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 LP) Not to scale 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.
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