A3988 Просмотр технического описания (PDF) - Allegro MicroSystems
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Компоненты Описание
производитель
A3988 Datasheet PDF : 13 Pages
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A3988
100.0
66.7
33.3
Phase 1
(%)
0
–33.3
–66.7
–100.0
Quad DMOS Full Bridge PWM Motor Driver
100.0
66.7
33.3
Phase 2 0
(%)
–33.3
–66.7
–100.0
Figure 5. Step Sequence for Quarter-Step Increments
Step Sequencing Settings
Full
1/2
1/4
Phase 1
(%ITripMax)
I0x
1
1
0
H
2
33
L
1
2
3
100/66* L/H*
4
100
L
3
5
100
L
6
100
L
2
4
7
100/66* L/H*
8
33
L
5
9
0
H
10
33
L
3
6
11
100/66* L/H*
12
100
L
7
13
100
L
14
100
L
4
8
15
100/66* L/H*
16
33
L
* Denotes modified step mode
I1x
PHASE
Phase 2
(%ITripMax)
I0x
H
x
100
L
H
1
100
L
L
1
100/66* L/H*
L
1
33
L
L
1
0
H
L
1
33
L
L
1
100/66* L/H*
H
1
100
L
H
x
100
L
H
0
100
L
L
0
100/66* L/H*
L
0
33
L
L
0
0
H
L
0
33
L
L
0
100/66* L/H*
H
0
100
L
I1x PHASE
L
1
L
1
L
1
H
1
H
X
H
0
L
0
L
0
L
0
L
0
L
0
H
0
H
X
H
1
L
1
L
1
Allegro MicroSystems, Inc.
8
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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