(Not sure if this is the appropriate forum but I couldn't find any other place to post this)
The TLC5947 uses a pin to set the current which determines the global led intensity. I am cascading several of these devices and would like to use one common iref to reduce the resistors needed and have an easy way to set the led intensity across all the ic's(using one pot instead of many). Is it safe to do this? Of course I would have to increase the resistance by a factor of the number of IC's used. I could add a small resistance to each iref to help with current sharing if necessary. This might be ideal as I would like to limit current as well but I would also like to minimize components as board space is a bit tight.