SLIS150K March 2014 – August 2019 DRV5013
When the open-drain output of the device is high-impedance, current through the path equals the ICC of the device (approximately 3 mA).
When the output pulls low, a parallel current path is added, equal to VCC / (R1 + rDS(on)). Using 12 V and 1 kΩ, the parallel current is approximately 12 mA, making the total current approximately 15 mA.
The local bypass capacitor C1 should be at least 0.1 µF, and a larger value if there is high inductance in the power line interconnect.