CGD1700HB3P-HM3 Overcurrent Detection

brandtsoenke

Hello Wolfspeed-Team,

I am working with your CAB760M12HM3 half-bridge module and the CGD1700HB3P-HM3 driver board. I want to use the modules LS-transistor in a short-circuit testbench as the high-side switch and for protection. When the DUT faults the current is rising to a very high value (over 8kA) which I hope would trigger the over-current-detection of the driver board. At the moment I connect the Pins as follows:

1 +12V | 2 GND | 5 +5V | 6 -5V| 15 +5V

I can drive the switch as intended but the Over-Current Protection does not latch, although it looks like it is triggered. What can I do different to use the over-current-protection as intended and only reset it after the user decides to?

Greetings

Sönke