Part Number:DRV2605L
Hi Kelly:
I've been though an issue with the DRV2605L similar to the DRV2605L: Some devices just don't work.
The initial prototypes were built using Adafruit DRV2605L Haptic Motor Controller with ERM Vibrating Mini Motor Disc and LRA G0832012, then I moved to circuit boards for the second round of prototypes.
Circuit and code match the recommendations of the data-sheet. Capacitor C(VDD) is 1 μF, according to DRV2605L: What is the correct value for C(VDD)? Datasheet gives two different values.
The DRV2605L drivers work fine but suddenly after a while stop working, on some of the initial prototypes and circuit boards, with either the ERM or LRA.
Two cases:
- Diagnostic returns the expected value, 0b11100000 = DRV2605L, but the DRV2605L no longer activate the attached ERM or LRA.
- The DRV2605L doesn't answer the I²C request.
Unfortunately, this is not an isolated case, as three of the five DRV2605L have stopped working so far. What should I investigate?
Thank you and best regards,