A4985SLPTR-T View Datasheet(PDF) - Allegro MicroSystems
Part Name
Description
MFG CO.
A4985SLPTR-T
Allegro MicroSystems
'A4985SLPTR-T' PDF : 22 Pages View PDF
A4985
DMOS Microstepping Driver with Translator
And Overcurrent Protection
STEP
100.00
70.71
Phase 1
IOUT1A 0.00
Direction = H
(%)
–70.71
–100.00
100.00
70.71
Phase 2
IOUT2A 0.00
Direction = H
(%)
–70.71
–100.00
Slow
Slow
DIR= H
Figure 8. Decay Mode for Full-Step Increments
STEP
100.00
92.39
70.71
Phase 1
IOUT1A
Direction = H
(%)
38.27
0.00
–38.27
–70.71
–92.39
–100.00
100.00
92.39
70.71
Phase 2
IOUT2B
Direction = H
(%)
38.27
0.00
–38.27
–70.71
–92.39
–100.00
Slow
Slow
Mixed
STEP
100.00
70.71
Phase 1
IOUT1A 0.00
Direction = H
(%)
Mixed*
Slow
Slow
Slow
Mixed
Mixed
Mixed
–70.71
–100.00
100.00
70.71
Phase 2
IOUT2B 0.00
Direction = H
(%)
Mixed*
Slow Slow
Slow
Mixed
Mixed
Mixed
Slow
–70.71
–100.00
*With ROSC pin tied to GND
DIR= H
Figure 9. Decay Modes for Half-Step Increments
Mixed
Mixed*
Slow
Mixed
Slow
Mixed*
Slow Mixed
Slow Mixed
*With ROSC pin tied to GND
DIR= H
Figure 10. Decay Modes for Quarter-Step Increments
Allegro MicroSystems, Inc.
15
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
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