Hello,
we are using a DRV2604L with the LRA C08-00A.003 (Precision Microdrives).
Supply Voltage of the system is at approx. 2.8V
LRA Parameters: Rated voltage: 1.2V, Frequency: 240Hz
Unfortunately, we are not able to run an autocalibration, we habe done the sequence described in the datasheet at p. 27 und get the status register result OC_DETECT=1 and DIAG_RESULT=Auto-calibration failed. LRA does not vibrate.
Schematic:
We have probed the voltage at OUT+ after setting the GO for autocalibration, showing the following results:
Written register contents are:
Addr 0x01 = 0x07
Addr 0x1A = 0x96
Addr 0x16 = 0x2E
Addr 0x17 = 0x3A
Addr 0x1B = 0x90
Thanks for your reply.
