Hi:
Design parameter of is as follows:
Peak current:5A
Peak time:68ms
Hold current:1.25A
the paramters of PCB are 40mOhn(R-sense), 300KOhn(R-PEAK),0.68uF(C-KEEP),0Ohn(Osc) with 8 pin DRV110. The power is 12V.
But in fact, its wave shape is as follows:(yellow is the wave between OUT and GND,blue is the wave of the current flowing load)
its peak time is 53ms, peak current is changed from 4.275A to 4.675A.
So, could you give an idea about the precision of the parameter , what would inflence them?
the yellow ,at the cross of peak and hold,why is there a sudden change,is it normal?why? what would make it just a sudden change?
In the datasheet of DRV110,it looks like stable
Thank you very much!
Hope your early reponse!
