Hi team,
Here's an issue from the customer may need your help:
Customer uses 3 DRV8806 units for cascaded output control loads and can now control the OUT port but with the following issues:
1) Currently only 12ohm resistor and light are connected to VM on EXV1_A1, other 11 way floating.
2) Control EXV1_A1 individually with the upper-station software, the lights turn on/off normally; control the other three ways on EXV1 with no effect on the already on EXV1_A1.
3) In the EXV1_A1 on state, if the channels of EXV2 and EXV3 are controlled, EXV1_A1 is disconnected as shown. Send the data first following the first waveform, EXV1_A1 turns on, and send the second waveform, EXV1_A1, is strangely off.
4) In the case of 3, the other three channels on EXV1 are controlled and EXV1_A1 is turned back on.
Could you help check this case? Thanks.
Best Regards,
Cherry
