TLE4727 Datasheet, PDF (4/22 Pages) Siemens Semiconductor Group – 2-Phase Stepper-Motor Driver

TLE 4727
Pin Definitions and Functions (cont’d)
Pin No.
Function
17
Error output; signals with "low" the errors: open load or short circuit
to ground of one or more outputs or short circuits of the load or
overtemperature.
18
Input phase 2; controls the current flow through phase winding 2.
On H-potential the phase current flows from Q21 to Q22, on
L-potential in the reverse direction.
Figure 2 Block Diagram
Semiconductor Group
4
1998-12-16