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A3941 - Automotive Full Bridge MOSFET Driver

Datasheet Summary

Description

The A3941 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.

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Datasheet preview – A3941

Datasheet Details

Part number A3941
Manufacturer Allegro
File Size 1.05 MB
Description Automotive Full Bridge MOSFET Driver
Datasheet download datasheet A3941 Datasheet
Additional preview pages of the A3941 datasheet.

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Full PDF Text Transcription

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A3941 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 PACKAGE: 28-pin TSSOP with exposed thermal pad (suffix LP) Not to scale DESCRIPTION The A3941 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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