how to drive 5 ERM actuators simultaneously with DRV 2605L using waveform method?

Hi, Muhammad,

Welcome to E2E and thank you for your interest in our products!

In order to use multiple actuators (LRA or ERM) with the DRV2605L, it is important to consider that the device can only handle loads with a minimum 8ohms impedance. Placing many 5 ERMs in parallel could work, but you would need to ensure that the equivalent impedance is at least 8 ohms.

Then, you would need to try using the auto-calibration mode to verify if the device can support all these loads at same time. If the DIAG_RESULT flag in register 0x00 shows a calibration failure, probably you would need to calibrate the device manually.

Please let me know if you have additional questions or comments on this.

Have a good day!

Best regards,
Luis Fernando Rodríguez S.