LSM303D Self-test did not function normally when VDD=3.3V

[ChemaSC_KT]

Posted on October 15, 2017 at 05:21

Hi,

   In out production process, the self-test function of LSM303D was taken to perform product testing. The Self-test was always OK when VDD was about 2.7V. However, we found that when the VDD was set to 3.3V, some LSM303Ds could not pass the self-test. It seemed than some times no differences could be observed with the self-test bit (AST) set to '0' and '1' when VDD set to 3.3V.

   Is there anything wrong?

With Regards

#lsm303d-self-test

[Miroslav BATEK]

Posted on October 16, 2017 at 14:55

Is the communication at VDD 3.3V OK (reliable) ? I mean are you able to read correct data (without self-test) when VDD is 3.3V?