For the digital inputs, ISO121x device is pretty robust and allows for Ch-Ch isolation. for high density though, you might be willing to use single isolator to save cost. I would recommend to have a look at:
For digital outputs, you…
For DC current measurement
For DC voltage measurement
Please note that more…
Since you posted here at motor driver forum, we can give our better relay driver as DRV8860.
8 outputs, auto energizing and internal configurable PWM to save holding power, serial interface with daisy chain ability, all are good features to…
TLC5940 is more like a dedicate LED driver which has less capability to driver a stepper motor. Both the output current and the capacity of internal free wheel diodes are reaching or beyond the limit in motor application.
The unipolar stepper…