Why VNH7040AY shuts off above 15 A immediately

[Mark Peter Vargha]

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).