DRV8873HEVM: Issue

Part Number: DRV8873HEVM

Hi,

The DRV8873 EVM software was configured as shown in the attachment (evk gui.png).
Without load (with open output), the signal on the OUT1 looked good- see "without load.png".
With a 5 ohm resistance between VM and OUT1, the signal on the OUT1 looked also good- see "with 5ohm resisor between out1 and vm.png".
However, if I want to usea load between GND and OUT1, the duty cycle suddenly drops to 10% for no apparent reason - see "with 5ohm resisor between out1 and gnd.png".
From 0-10%, the duty cycle remains adjustable, but it can not be set higher than 10%.
Is this behavior so intentional? Do I overlook anything? Or is this a malfunction?

Best regards,

Alen