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A3946 Datasheet

Manufacturer: Allegro MicroSystems
A3946 datasheet preview

A3946 Details

Part number A3946
Datasheet A3946-AllegroMicroSystems.pdf
File Size 763.82 KB
Manufacturer Allegro MicroSystems
Description Half-Bridge Power MOSFET Controller
A3946 page 2 A3946 page 3

A3946 Overview

The A3946 is designed specifically for applications that require high power unidirectional DC motors, three-phase brushless DC motors, or other inductive loads. The A3946 provides two high-current gate drive outputs that are capable of driving a wide range of power N-channel MOSFETs. The high-side gate driver switches an N-channel MOSFET that controls current to the load, while the low-side gate driver switches an...

A3946 Key Features

  • On-chip charge pump for 7 V minimum input supply voltage
  • High-current gate drive for driving a wide range of N‑channel MOSFETs
  • Bootstrapped gate drive with top-off charge pump for 100% duty cycle
  • Overtemperature protection
  • Undervoltage protection
  • 40°C to 135°C ambient operation

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