DRV8889-Q1: SPI requirement t(HI_nSCS)

Youhei Miyaoka

Part Number: DRV8889-Q1

Tool/software:

Hello team,

My customer want to confirm the SPI AC timing requirement for DRV8889 motor driver.

The “t(HI_nSCS)” is required 2us as maximum, but explanation for this parameter mentions that it is minimum time as you can see below.

◆DRV8889 data sheet rev.D

◆Daisy Chain Implementation for Serial Peripheral Interface (Rev. A)

Can you please confirm if this is correct?

Regards,

Youhei MIYAOKA

24 days ago

0 Shinya Morita 23 days ago

TI__Mastermind 44855 points

Hi,

Thank you for your post. Monday September 1st is national holiday in US. Please expect delay or please wait for our expert assignment on Tuesday US time

+1 Mojtaba Afshar 23 days ago

TI__Expert 5090 points

Hi Youhei,

Thank you for bringing this to our attention. We apologize for the mistake in the datasheet, which will be corrected in a future revision.

To clarify, there is no maximum limit for the t(HI_nSCS) parameter, while the minimum time requirement is 2 microseconds.

Best regards,

Mojtaba

0 Youhei Miyaoka 22 days ago in reply to Mojtaba Afshar

TI__Expert 4005 points

Hi Mojtaba,

Understood. Thank you.

Regards,

Youhei

0 Youhei Miyaoka 22 days ago in reply to Youhei Miyaoka

TI__Expert 4005 points

To make sure just in case; the followings are my understanding.

For “t(HI_nSCS)”
- No maximum time required.
- Required minimum time is 2 microseconds.

Am I understanding correct?

Regards,

Youhei

+1 Mojtaba Afshar 22 days ago in reply to Youhei Miyaoka

TI__Expert 5090 points

Hi Youhei,

That's correct. Please close the thread on your side if it is resolved.

Best regards,

Mojtaba.

0 Youhei Miyaoka 20 days ago in reply to Mojtaba Afshar

TI__Expert 4005 points

Thank you Mojtaba!

Regards,

Youhei

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DRV8889-Q1: SPI requirement t(HI_nSCS)