A4989SLDTR-T Allegro Microsystems Inc, A4989SLDTR-T Datasheet - Page 7

• Manufacturer Part Number: A4989SLDTR-T
• Description: DUAL FULL BRDG MOSFET DRVR W/MICROSTEP TRANS
• Manufacturer: Allegro Microsystems Inc

Specifications of A4989SLDTR-T

• Applications: Stepper Motor Controller, 2-Phase
• Number Of Outputs: 1
• Voltage - Load: 12 V ~ 50 V
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 38-TFSOP (0.173", 4.40mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 620-1389-2

A4989
Table 3. Step Sequencing Settings
Home microstep position at Step Angle 45º; DIR = H
Step
Full
(#)
1
2
Step
Half
(#)
1
2
3
4
5
Step
1/4
(#)
1
2
3
4
5
6
7
8
9
Step
1/16
(#)
10
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
11
1
2
3
4
5
6
7
8
9
(% I
Phase 2
Current
100.00
100.00
100.00
TRIP(max)
18.75
29.69
37.50
46.88
56.25
64.06
70.31
76.56
82.81
87.50
92.19
95.31
98.44
98.44
95.31
92.19
87.50
82.81
76.56
70.31
64.06
56.25
46.88
37.50
29.69
18.75
0.00
9.38
9.38
0.00
)
(% I
–100.00
–100.00
Phase 1
Current
100.00
100.00
–18.75
–29.69
–37.50
–46.88
–56.25
–64.06
–70.31
–76.56
–82.81
–87.50
–92.19
–95.31
–98.44
TRIP(max)
98.44
95.31
92.19
87.50
82.81
76.56
70.31
64.06
56.25
46.88
37.50
29.69
18.75
–9.38
9.38
0.00
)
Angle
101.3
106.9
123.8
129.4
135.0
140.6
146.3
151.9
157.5
163.1
168.8
174.4
180.0
112.5
118.1
Step
16.9
22.5
28.1
33.8
39.4
45.0
50.6
56.3
61.9
67.5
73.1
78.8
84.4
90.0
95.6
11.3
(°)
0.0
5.6
Dual Full-Bridge MOSFET Driver
Step
Full
(#)
3
4
with Microstepping Translator
Step
Half
(#)
5
6
7
8
1
Step
1/4
(#)
10
11
12
13
14
15
16
9
1
Step
1/16
(#)
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
1
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
(% I
Phase 2
Current
–100.00
–100.00
–100.00
–18.75
–29.69
–37.50
–46.88
–56.25
–64.06
–70.31
–76.56
–82.81
–87.50
–92.19
–95.31
–98.44
–98.44
–95.31
–92.19
–87.50
–82.81
–76.56
–70.31
–64.06
–56.25
–46.88
–37.50
–29.69
–18.75
TRIP(max)
–9.38
–9.38
0.00
0.00
)
(% I
Phase 1
Current
–100.00
–100.00
–98.44
–95.31
–92.19
–87.50
–82.81
–76.56
–70.31
–64.06
–56.25
–46.88
–37.50
–29.69
–18.75
100.00
100.00
TRIP(max)
–9.38
18.75
29.69
37.50
46.88
56.25
64.06
70.31
76.56
82.81
87.50
92.19
95.31
98.44
0.00
9.38
)
Angle
180.0
185.6
191.3
196.9
202.5
208.1
213.8
219.4
225.0
230.6
236.3
241.9
247.5
253.1
258.8
264.4
270.0
275.6
281.3
286.9
292.5
298.1
303.8
309.4
315.0
320.6
326.3
331.9
337.5
343.1
348.8
354.4
360.0
Step
(°)
7