Dear sir,
About DRV8824-Q1, Chapter 9.2.2.2 Current Regulation.
Below is our design sample:
For Equation(4):
VREF=3.3V
Rsense=0.4 ohm
=> Ifs = 3.3/(5*0.4) = 1.65 (A)
for Equation(5):
VM=12V
RL=10 ohm(PM25L-024)
Rds=0.63 ohm(room temperature)
Rsense=0.4 ohm
=> Right Equation = 12/(10+2*0.63+0.4)=12/11.66=1.029(A)
So 1.65(A) should small than 1.029(A)?????????????????????????????????
our design is wrong?
Is there any mis-understand of my key parameter input?
But for our real current output, current can reach over 1.3A
No saturated found.
Please help to answer my questions.
Thanks for your support~
