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Why VNH7040AY shuts off above 15 A immediately

Mark Peter Vargha
Associate III

‎2019-11-12 4:24 AM

Tested the VNH7040AY

  • Mounted on the official breakout board. (Also tried with custom PCB)
  • Proper heatsink.
  • 50 and 100% 20 kHz PWM.
  • With dummy load and also with real motor.
  • Tried 7, 12, 20 and 24 Volt Vcc.
  • Tried 3.3, 5 and 7 Volt control signal (INA, INB, PWM).
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