A4985SLPTR-T Allegro Microsystems Inc, A4985SLPTR-T Datasheet - Page 15

• Manufacturer Part Number: A4985SLPTR-T
• Description: IC STEPPER MOTOR DRIVER 24TSSOP
• Manufacturer: Allegro Microsystems Inc

Specifications of A4985SLPTR-T

• Applications: Stepper Motor Driver
• Number Of Outputs: 1
• Current - Output: ± 1A
• 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-TSSOP Exposed Pad, 24-eTSSOP, 24-HTSSOP
• Motor Type: Stepper
• No. Of Outputs: 2
• Output Current: 1A
• Output Voltage: 35V
• Supply Voltage Range: 3V To 5.5V
• Driver Case Style: TSSOP
• No. Of Pins: 24
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 620-1374 - Board Eval Motor Control A4985
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 620-1344-2

A4985
Figure 8. Decay Mode for Full-Step Increments
Direction = H
Direction = H
Phase 1
Phase 2
STEP
I
I
OUT1A
OUT2A
(%)
(%)
–100.00
–100.00
100.00
–70.71
100.00
–70.71
Direction = H
Direction = H
70.71
70.71
0.00
0.00
Figure 10. Decay Modes for Quarter-Step Increments
Phase 1
Phase 2
STEP
I
I
OUT2B
OUT1A
(%)
(%)
–100.00
–100.00
100.00
–38.27
–70.71
–92.39
100.00
–38.27
–70.71
–92.39
92.39
70.71
38.27
92.39
70.71
38.27
0.00
0.00
DIR= H
Slow
DMOS Microstepping Driver with Translator
Slow
Slow
Mixed
Slow
Mixed
Slow
*With ROSC pin tied to GND
DIR= H
Mixed*
Mixed
Figure 9. Decay Modes for Half-Step Increments
Slow
Direction = H
Direction = H
Phase 1
Phase 2
Mixed*
STEP
I
I
OUT1A
OUT2B
And Overcurrent Protection
Mixed
(%)
(%)
Slow
–100.00
–100.00
100.00
–70.71
100.00
–70.71
70.71
70.71
0.00
0.00
Mixed
Mixed
Slow
Slow
Slow
*With ROSC pin tied to GND
Mixed
Slow
DIR= H
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
Mixed
Slow
Mixed*
Mixed*
Mixed
Slow
Mixed
Slow
Mixed
Slow
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