A3989 Allegro MicroSystems, A3989 Datasheet - Page 7

• Manufacturer Part Number: A3989
• Description: Bipolar Stepper and High Current DC Motor Driver
• Manufacturer: Allegro MicroSystems

A3989
Phase 1
Phase 2
Figure 3. Step Sequencing for Full-Step Increments.
(%)
(%)
–100.0
–100.0
100.0
–66.7
100.0
–66.7
66.7
66.7
0
0
Full step 2 phase
Modified full step 2 phase
Bipolar Stepper and High Current DC Motor Driver
Step Sequencing Diagrams
Phase 1
Phase 2
(%)
(%)
–100.0
–100.0
100.0
–66.7
100.0
–66.7
66.7
66.7
0
0
Figure 4. Step Sequencing for Half-Step Increments.
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
Half step 2 phase
Modified half step 2 phase
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