DM8148: Confirm IPU/IPD Variability

Kaka

Hi Experts.

Please let me confirm the following question.
[Question]
Would you please show us the data of variability of IPU/IPD?
**Especially my customer would like to know this on AB27 pin.

[Background]
They would like to know this variability in order to confirm the validity for external PU/PD. Because they confirmed the unexpected behavior on DM1848 before booting up the DM8148..

If you have any questions, please let me know.
Best regards.
Kaka

over 9 years ago

0 Pavel Botev over 9 years ago

TI__Guru**** 170625 points

Hi Kaka,

The requested information can be found in the device datasheet.

BR
Pavel

0 Kaka over 9 years ago in reply to Pavel Botev

Guru 24520 points

Hi Parvel,

Thank you for your response.
I have checked this information(variability) on the datasheet . But I could not find it.
Would you please show us the page?

Best regards.
Kaka

0 Pavel Botev over 9 years ago in reply to Kaka

TI__Guru**** 170625 points

Kaka,

See if the below section will be in help:
4.5.1 Pullup/Pulldown Resistors

Meanwhile I have sent request to the team regarding AB27 pin IPU value. I will update when I receive any info.

BR
Pavel

0 Kaka over 9 years ago in reply to Pavel Botev

Guru 24520 points

Hi Pavel,

Thank you for your kindly support.
I have already checked that section on datasheet.
But there is any description about IPU/IPD register variability.

I am waiting for your update of AB27 variability.

If you have any questions, please let me know.
Best regards.
Kaka

0 Kaka over 9 years ago in reply to Kaka

Guru 24520 points

Hi Parvel

Do you have any updates for this topics?

Best regards.
Kaka

0 Pavel Botev over 9 years ago in reply to Kaka

TI__Guru**** 170625 points

The IPU/IPD variation is provided in DM814x datasheet, section 6.4 Electrical Characteristics - see Ii (Input current). The resistance should be calculated based on the provided current related to the power supply of this pin.

0 Kaka over 9 years ago in reply to Pavel Botev

Guru 24520 points

Hi Pavel,

Thank you for your information and kindly support.
I got the same answer from TIJ a few hours ago.

Best regards.
Kaka

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DM8148: Confirm IPU/IPD Variability