Automotive Full-Bridge MOSFET Driver for High-Power Inductive Loads

A3921

Product Image A3921

The A3921 is designed for automotive applications requiring robust control of high-power inductive loads. It offers high-current gate drive for N-channel MOSFETs, integrated diagnostics, and a wide operating voltage range (5.5V-50V).

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Top Features

Packaging

  • 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
28-pin TSSOP with exposed thermal pad (suffix LP)

Part Number Specifications and Availability

Documentation and Resources

Documentation

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Reverse Battery Protection Scheme for Automotive Applications