DRV5055: DRV5055 graph need to confirm

SAGAR SAGARE

Prodigy 40 points

Part Number: DRV5055

Tool/software:

while testing logic for DRV5055, looks like not correct in graphs, could you guide us

3 months ago

0 Alicia Rosenberger 3 months ago

TI__Genius 14220 points

Hi Sagar,

Thank you for posting to the Sensors forum!

Are you able to share a waveform of the results you are seeing? What about the graph does not look correct?

Best,

~Alicia

0 SAGAR SAGARE 3 months ago in reply to Alicia Rosenberger

Prodigy 40 points

as per testing below test result which does not match with graph above

sensor is powered from 5V

Strong south pole output is 0.1 V

Strong North pole output is 4.99V

0 Alicia Rosenberger 3 months ago in reply to SAGAR SAGARE

TI__Genius 14220 points

Hi Sagar,

Figure 7-3 is correct. Due to the polarity of the sensor, the device will treat the south pole of the magnet as a positive value and the north pole of the magnet as a negative value.

What could be happening is that either your sensor is flipped, similar to the image below, or the polarity of your magnet is inverted.

As shown in the simulation below, as the south pole of the magnet gets closer to the sensor, the device output increases.

Best,

~Alicia