DRV2625: the detail of Waveform Library Effects List

K.Yaita

Part Number: DRV2625
Other Parts Discussed in Thread: DRV2605

Hi Team,

My customer considers to use DRV2625 and asked the same inquiry as the following E2E thread.
https://e2e.ti.com/support/motor-drivers-group/motor-drivers/f/motor-drivers-forum/948581/drv2625-waveform-library-effect-list?tisearch=e2e-sitesearch&keymatch=DRV2625%252520library#

He understand there is "12.1.1 Waveform Library Effects List" in datasheet page 67 however he wants to know the detail of what kind of waveform is output for each effect.
Is it possible to disclose?

Best Regards,
Yaita

over 1 year ago

0 Daveon Douglas over 1 year ago

TI__Genius 11090 points

Hi,

Our TI experts are out of office today for US holiday, please be patient as responses are delayed.

0 K.Yaita over 1 year ago in reply to Daveon Douglas

Guru 29690 points

Hi,
Thank you for your reply.
OK. I will wait for your team's reply.

Best Regards,
Yaita

+1 Arthur Brown over 1 year ago in reply to K.Yaita

TI__Genius 16870 points

Hi Yaita,

We cannot share exact details about the waveforms, but we can share oscilloscope captures of the output. (OUTP-OUTN).

The File name says DRV2605, however the waveforms are the same between, these two devices.
0576.DRV2605_LRA_Library_Partron_0825.zip

Regards,
Arthur

0 K.Yaita over 1 year ago in reply to Arthur Brown

Guru 29690 points

Hi Arthur-san,

Thank you for your support.
I understand the oscilloscope captures shows the following by looking DRV2625 typical characteristics in datasheet.
-----------------------
C1: OUTP
C2: OUTN
C3: Acceleration
Math: OUTP-OUTN
-----------------------
I believe C1 and C2 were captured with the following first-order RC-filter.
Is my understand correct?

In addition, how to get C3(Acceleration)?

Best Regards,
Yaita

+1 Arthur Brown over 1 year ago in reply to K.Yaita

TI__Genius 16870 points

Hi Yaita,

Yes your understanding is correct.

To measure acceleration we use a TI EVM with ADL accelerometer chip. you can purchase here

https://www.ti.com/tool/DRV-ACC16-EVM

Regards,
Arthur

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DRV2625: the detail of Waveform Library Effects List