Part Number:DRV8825
HI
i worked with DRV8825 in FULL STEP MODE.
1. In my circuit i designed " i chop" to 3.5A. I saw on every phase 2.5A. Dose the reason is that in full step every phase current is 71% so 3.5A*0.71=2.5A?
2. The absolute current rating is 2.5A continues. In "full step mode" it's means that "I chop" should not pass 3.5A so on every phase would be 2.5A (3.5*0.71=2.5) , or " I chop" should not pass 2.5A so on every phase would be 1.775A (2.5*0.71=1.775).
3. My profile operation is 1.5 SEc ,one time operation, in 4KHz step . The absolute current rating is 2.5A is for continues working. I suppose that 2.5A absolute current rating is for continues working . Is it possible to operate with more current if the operating time is only 1.5 sec one time operation?
4. If so how to calculate how much current could i use?
Thanks
Elyasaf
