A3977SLP-T Allegro Microsystems Inc, A3977SLP-T Datasheet - Page 11

• Manufacturer Part Number: A3977SLP-T
• Description: IC MOTOR DRIVER PWM DUAL 28-TSSO
• Manufacturer: Allegro Microsystems Inc

Specifications of A3977SLP-T

• Applications: Stepper Motor Driver
• Number Of Outputs: 1
• Current - Output: ±2.5A
• Voltage - Load: 8 V ~ 35 V
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Operating Current: 12mA
• Operating Temperature Classification: Commercial
• Package Type: TSSOP EP
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 620-1079

* Home state; HOME output low.
A3977
Step #
Full
1
2
3
4
Step #
Half
1
2
3
4
5
6
7
8
Quarter
Step #
Microstepping DMOS Driver with Translator
10
12
13
14
15
16
11
1
2
3
4
5
6
7
8
9
Table 2. Step Sequencing
Eighth
Step #
10
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
11
(DIR = L)
1
2
3
4
5
6
7
8
9
[%I
Phase 2
Current
-100.00
100.00
-19.51
-38.27
-55.56
-70.71
-83.15
-92.39
-98.08
-98.08
-92.39
-83.15
-70.71
-55.56
-38.27
-19.51
19.51
38.27
55.56
70.71
83.15
92.39
98.08
98.08
92.39
83.15
70.71
55.56
38.27
19.51
trip
0.00
0.00
max]
[%I
Phase 1
Current
-100.00
100.00
-19.51
-38.27
-55.56
-70.71
-83.15
-92.39
-98.08
-98.08
-92.39
-83.15
-70.71
-55.56
-38.27
-19.51
98.08
92.39
83.15
70.71
55.56
38.27
19.51
19.51
38.27
55.56
70.71
83.15
92.39
98.08
trip
0.00
0.00
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
max]
101.25
123.75
146.25
157.50
168.75
191.25
202.50
213.75
236.25
247.50
258.75
281.25
292.50
303.75
326.25
337.50
348.75
112.50
Angle
22.50
33.75
56.25
67.50
78.75
11.25
Step
135
180
225
270
315
45*
90
0
11