DRV8243-Q1: connecting nSleep together for multiple devices. (H-Variant)

Markus_Fleck

Part Number: DRV8243-Q1

Tool/software:

Hello Team,

A project wants to connect the nSLEEP pins of 3 DRV824x parts together and service it from one µC pin. Retry mode is intended to be used. Would this do any harm/work from your experience?

If latch mode would be used, would it be a problem if 1 device reports a fault but the other 2 would also see the reset pulse?

Best Regards,

Markus

over 1 year ago

+1 Shinya Morita over 1 year ago

TI__Mastermind 44855 points

Hi Markus,

Thank you for your questions. I do not expect the issue by connecting 3 nSLEEP pin together on H-variant.

If S-variant, SDO is supplied by nSLEEP pin. So I may ask customer should take care for nSLEEP=H driving capability. However this is case of SPI variant, not H-variant.

0 Markus_Fleck over 1 year ago in reply to Shinya Morita

TI__Intellectual 1122 points

Hello Morita-san,

many thanks for your feedback.

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DRV8243-Q1: connecting nSleep together for multiple devices. (H-Variant)