STMicroelectronics Stepper motor driver mounting the L6474 in high power PowerSO package EVAL6474PD EVAL6474PD Ficha De Dados
Códigos do produto
EVAL6474PD
Functional description
L6474
20/52
Doc ID 022529 Rev 3
Figure 5.
Charge pump circuitry
6.4 Microstepping
The driver is able to divide the single step into up to 16 microsteps. Stepping mode can be
programmed by STEP_SEL parameter in STEP_MODE register (see
programmed by STEP_SEL parameter in STEP_MODE register (see
Step mode can only be changed when bridges are disabled. Every time the step mode is
changed, the electrical position (i.e. the point of microstepping sinewave that is generated)
is reset to the first microstep and the absolute position counter value (see
changed, the electrical position (i.e. the point of microstepping sinewave that is generated)
is reset to the first microstep and the absolute position counter value (see
)
becomes meaningless.
Figure 6.
Normal mode and microstepping (16 microsteps)