A3989SEVTR-T Allegro Microsystems Inc, A3989SEVTR-T Datasheet - Page 7

• Manufacturer Part Number: A3989SEVTR-T
• Description: IC, MOTOR DRIVER, STEPPER, 1.2A, QFN-36
• Manufacturer: Allegro Microsystems Inc

Specifications of A3989SEVTR-T

• Motor Type: Stepper
• No. Of Outputs: 3
• Output Current: 1.2A
• Output Voltage: 36V
• Supply Voltage Range: 3V To 5.5V
• Driver Case Style: QFN
• No. Of Pins: 36
• Applications: DC Motor Driver, Stepper Motor Driver
• Number Of Outputs: 2
• Voltage - Load: 8 V ~ 36 V
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-VFQFN Exposed Pad
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 620-1183-2

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
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
Half step 2 phase
Modified half step 2 phase
7