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A3946 - Half-Bridge Power MOSFET Controller

Description

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.

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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Datasheet preview – A3946

Datasheet Details

Part number A3946
Manufacturer Allegro MicroSystems
File Size 763.82 KB
Description Half-Bridge Power MOSFET Controller
Datasheet download datasheet A3946 Datasheet
Additional preview pages of the A3946 datasheet.

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Full PDF Text Transcription

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A3946 Half-Bridge Power MOSFET Controller FEATURES AND BENEFITS ▪ 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 PACKAGE: 16-pin TSSOP with exposed thermal pad (Suffix LP) DESCRIPTION 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.
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