A3986
Dual Full-Bridge MOSFET Driver
with Microstepping Translator
STEP
100
96
88
83
77
71
63
56
47
38
29
20
I
OUT1B
(%*)
Phase = 1,
Direction = H
10
Slow
0
–10
–20
–29
–38
–47
–56
–63
–71
–77
–83
–88
–96
–100
100
96
88
83
77
71
63
56
47
38
29
Mixed
Slow
Mixed
I
OUT2B
(%*)
Phase = 2,
Direction = H
20
Slow
10
Mixed
0
–10
–20
–29
–38
–47
–56
–63
–71
–77
–83
–88
–96
–100
Home Microstep Position
Slow
Mixed
Slow
*For precise definition of output levels, refer to table 3
Figure 5. Decay Modes for Sixteenth-Step Increments
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
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