STMicroelectronics Fully integrated stepper motor driver mounting the L6472 in a high power PowerSO package EVAL6472PD EVAL6472PD Data Sheet

Product codes

EVAL6472PD

Programming manual

L6472

46/70

DocID022729 Rev 3

9.1.13 TOFF_MIN

The TOFF_MIN register contains the minimum OFF time value used by the current control
system (see

The available range for both parameters is from 0.5 µs to 64 µs.

Any attempt to write to the register when the motor is running causes the command to be
ignored and NOTPERF_CMD to rise (see

9.1.14 ADC_OUT

The ADC_OUT register contains the result of the analog-to-digital conversion of the ADCIN
pin voltage.

Any attempt to write to the register causes the command to be ignored and the
NOTPERF_CMD flag to rise (see

Table 16. Minimum OFF time

TOFF_MIN [6 … 0]

Time

0 0 0 0 0 0 0

0.5

µs

0 0 0 0 0 0 1

µs

…

1 1 1 1 1 1 0

63.5

µs

1 1 1 1 1 1 1

µs

Table 17. ADC_OUT value and torque regulation feature

VADCIN/ VREG

ADC_OUT [4.0]

Output current amplitude

0 0 0 0 0

125

1/32

0 0 0 0 1

250

…

30/32

1 1 1 1 0

3.875

31/32

1 1 1 1 1