Datasheet

L6460 Power bridges
Doc ID 17713 Rev 1 71/139
The voltage spikes on R
sense
could be filtered by selecting an appropriate blanking time on
the output of current sense comparator. The Blanking time selection is made by using the
StepBlkTime[1:0] bits in the StpCfg1 register.
The stepper driver off time could be programmed by means of the StepOffTime[4:0] bits in
StpCfg1 register.
32 63 55.6 83.1 33.8°
64 63.4 77.3 39.4°
Table 26. Stepper off time
StepOffTime[4:0]
Off time
Unit
Typ
00000 2 µs
00001 4 µs
00010 6 µs
00011 8 µs
00100 10 µs
00101 12 µs
00110 14 µs
00111 16 µs
01000 18 µs
01001 20 µs
01010 22 µs
01011 24 µs
01100 26 µs
01101 28 µs
01110 30 µs
01111 32 µs
10000 34 µs
10001 36 µs
10010 38 µs
10011 40 µs
Table 25. Internal sequencer (continued)
Control mode
Typical output
current (% of IMAX)
Resulting
electrical
angle
Half
step
Full step
(2 phases
on)
Full step
(1 phase
on)
1/4
step
1/8
step
1/16
step
Phase A
(sin)
Phase B
(cos)
Electrical
degrees