DRV8832-Q1: output signal issue

Hey Cherry,

Thank you for your question!

What is the supply voltage and Vset? And what output voltage are you measuring on Out1 and OUT2?

Please provide waveforms if possible.

Best,
Akshay

Hi Akshay,

Thanks for your support.

Akshay Rajeev Menon said:

What is the supply voltage and Vset?

The supply voltage is 5V and Vset is connected to REF.

Akshay Rajeev Menon said:

And what output voltage are you measuring on Out1 and OUT2?

OUT1 is 5V, OUT2 will output a high and low varying level signal for approximately 10ms before a continuous low level.

Thanks and regards,

Cherry

Hey Cherry,

If the Vset is connected directly to VREF then the output will be set to regulate at 5.14V. Note that if the programmed output voltage is greater than the supply voltage, the device will operate at 100% duty cycle and the voltage regulation feature will be disabled. In this mode the device behaves as a conventional H-bridge driver.

Can you provide the following waveforms:

1) 4 channel:  VREF, Vsup, OUT1 and OUT 2

2) 4 channel: IN1, IN2, OUT1, OUT2

Also please provide a schematic.

Best,
Akshay