DRV8834EVM: Connecting xISEN directly to ground

Part Number:DRV8834EVM

Hello All,

I have a couple questions in regards to the DRV8834...

1) If xISEN is connected directly to ground, what will the current limit be for each bridge? The datasheet says the following:

• If current control is not needed, the xISEN pins may be connected directly to ground. In this case, TI also recommends connecting AVREF and BVREF directly to VREFO.

Is the current completely unregulated at this point? Or is there still over current protection equal to the 1.5A RMS output current rating? The datasheet also mentions:

• Overcurrent protection does not use the current sense circuitry used for PWM current control, so functions even without presence of the xISEN resistors.

2) Can the current consumption of each motor be measured through the xISEN pin? If so, what is the relation between the voltage on the pin and the current consumption of the motor?

Thanks,

Jeston