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L6460 Fiches technique(PDF) 71 Page - STMicroelectronics

No de pièce L6460
Description  SPI configurable stepper and DC multi motor driver
PDF  139 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6460 Fiches technique(HTML) 71 Page - STMicroelectronics

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L6460
Power bridges
Doc ID 17713 Rev 1
71/139
The voltage spikes on Rsense 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



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