DRV8835: Is there power up/down sequence requirement between VCC and VM?

Yoshikazu Kawasaki

Part Number: DRV8835

Hello,

My customer would like to confirm if there is any sequence requirement between VCC and VM like order from VCC to VM, slew rate of those or something like those. I understand there is no requirement since the datasheet says nothing about it except "The DRV8835 allows separation of the motor voltage and logic voltage if desired. If VM and VCC are less than 7 V, the two voltages can be connected", but would you please tell me about it?

Best Regards,

Yoshikazu Kawasaki

over 4 years ago

0 Rick Duncan over 4 years ago

TI__Guru** 114905 points

Hi Kawasaki-san,

There is no sequence. please refer to section 9.2 of the datasheet:

"VCC and VM may be applied and removed in any order. When VCC is removed, the device enters a low power state and draws very little current from VM. To minimize current draw, keep the input pins at 0 V during sleep mode."