• State
  • Locked Locked
  • Replies 3 replies
  • Subscribers 18 subscribers
  • Views 167 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Rad Tolerant Dgipot

Kavindu Ratnayake
Intellectual 330 points
Other Parts Discussed in Thread: TPL0102-EP, TPL1401

Hi,

May I know if TI got Rad Tolerant Digitally controlled Potentiometer (DCP) in the space portfolio

Best Regards,

Kavindu

  • 0
    Guru 265550 points

    No. The best you could get would be the TPL0102-EP.

    What is the actual application? It might be possible to use a switch or a DAC.

  • 0 in reply to Clemens Ladisch
    Intellectual 330 points

    Thanks for the feedback.

    We are looking for a DCP for high altitude aerospace application which should be tolerant to SEU/MBU. All the DCPs that I checked in the market has got a volatile memory(register) to retain the wiper position value. So we are looking for a rad hard/tolerant DCP or a one with the wiper position is updated directly from a non volatile memory, because non-volatile  memories are least susceptible for SEU/MBU

  • 0 in reply to Kavindu Ratnayake
    Guru 265550 points

    DCPs with non-voltatile memory load the settings only at power up, or when triggered by the controller (for example, the TPL1401 has the NVM_RELOAD bit in register D3 for this). So you could just as well use a DCP with voltatile memory and regularly update it from the controller.

    I would suggest to change your circuit so that it works with a space-rated DAC.