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TMS570LS0432: Absolute Maximum Ratings for VCCAD

Kuerbis
Expert 4145 points
Part Number: TMS570LS0432
Other Parts Discussed in Thread: TMS570LS0714,

Hi Team

 

Why is Absolute Maximum Ratings for VCCAD 3.6V? Is 3.6V correct?

Why is it different from ADC Input pin (4.6V)? Because of other device like TMS570LS0714 is 6.25V for both VCCAD and ADC Input pin. Also there is more margin vs. Recommended Operating Conditions

.

Thanks and Best regards,

Kuerbis

  • 0
    TI__Guru**** 196156 points
    Hello Kuerbis,

    The maximum value for VCCAD is 3.6V (Page 18 of the datasheet).
    The ADC on LS0432 only supports 3.3V, but TLS570LS0714 supports both 3.3V and 5V. The maximum VCCAD is 5.25V.
  • 0 in reply to QJ Wang
    TI__Expert 4145 points

    Hi QJ Wang

     

    Please let me confirm again.

    As the following table, there is no margin between Absolute Maximum Ratings VCCAD and Recommended Operating he Conditions VCCAD for TMS570LS0432. Bothe is 3.6V.

    The customer is really worry about this. So they are asking if 3.6v is correct. They are guessing that it’s 4.6V…

    In case of TMS570LS0714, it’s 6.25V .vs 5.25V.

    You told me that the ADC on LS0432 only supports 3.3V. There is 0.3V deference from 3.6V. Could it be controllable easily?

     

    Thanks and Best regards,

    Kuerbis

  • 0 in reply to Kuerbis
    TI__Guru**** 196156 points

    Hello Kuerbis,

    The maximum is 4.6V for VCCAD. I am sorry for the typo in the datasheet. We will fix it in next release.

  • 0 in reply to QJ Wang
    TI__Expert 4145 points

    Hi QJ Wang

     

    I'm glad that the device has a margin.

    Please check other Hercules family device datasheet too. We guess RM42 is same situation.

     

    Thanks and Best regards,

     Kuerbis