A3982SLB Allegro Microsystems Inc, A3982SLB Datasheet - Page 6

• Manufacturer Part Number: A3982SLB
• Description: IC MOTOR DRIVER STEPPER 24-SOIC
• Manufacturer: Allegro Microsystems Inc

Specifications of A3982SLB

• Applications: Stepper Motor Driver
• Number Of Outputs: 1
• Current - Output: ±2A
• 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: 24-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

A3982
Figure 1. Logic Interface Timing Diagram
RESET, or DIR
STEP
MS1,
STEP minimum, HIGH pulse width
STEP minimum, LOW pulse width
Setup time, input change to STEP
Hold time, input change to STEP
Table 1. Stepping Resolution Truth Table
DMOS Stepper Motor Driver with Translator
MS1
Time Duration
H
L
t
C
Full Step
Half Step
Step Resolution
t
D
t
A
Symbol
2 Phase
1-2 Phase
Excitation Mode
t
t
t
t
A
B
C
D
Typ.
200
200
1
1
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
t
Unit
B
μs
μs
ns
ns
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