User Manual

AND8399/D
http://onsemi.com
20
Figure 21. Difference Between Transparent and Not Transparent Mode
t
I
coil
I
coil
t
Coil Current
Zero Crossing
Previous
Microstep
Next
Microstep
V
coil
t
V
BB
+0.6V
V
BEMF
Next step Next step
V
SLA
t
Transparent Mode
V
SLA
t
Not Transparent Mode
Earliest moment to sample
in Not Transparent
Easiest moment to sample is
at next step .
Earliest moment to sample