• State TI Thinks Resolved
  • Locked Locked
  • Replies 2 replies
  • Answers 1 answer
  • Subscribers 46 subscribers
  • Views 261 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.

LDC0851: Vibration, Noise, RF effect on device

Patrick Moore63
Prodigy 40 points
Part Number: LDC0851

Hello,

A couple of questions about the product:

1) Has any vibration testing been done on the device

2) How will the device perform in a noisy and RF filled location?

3) What is an attainable minimum sensing range using whatever coils necessary? What would the coils be?

Thank you.

  • 0
    Prodigy 40 points
    Additionally, has any time before failure tests been done on the device?
  • 0 in reply to Patrick Moore63
    TI__Genius 17440 points
    Hi Patrick,

    1) We have not done any formal vibration testing on the device, but it does pair well with most haptic motors.

    2) All LDC devices measure the resonant frequency of an LC tank, which is inherently a narrow band-pass filter, so the devices are very resistant to most noise and RF signals. The only exception is if the RF signals are close in frequency to the LC tank's resonant frequency (close is determined by the inductor's Q factor). In this case, the capacitor can be swapped out to modify the resonant frequency to one that won't be disturbed.

    3) The LDC0851 needs to see about 1mm of target movement in order to switch. I would suggest reading section 9 of the datasheet for more information about coil design for the LDC0851.

    4) Because this is not an automotive qualified device, we do not have mean-time-to-failure data for this device.

    Regards,