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A3986 Datasheet(PDF) 9 Page - Allegro MicroSystems

Part # A3986
Description  Dual Full-Bridge MOSFET Driver with Microstepping Translator
Download  17 Pages
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A3986 Datasheet(HTML) 9 Page - Allegro MicroSystems

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Dual Full-Bridge MOSFET Driver
with Microstepping Translator
A3986
8
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
Figure 4. Decay Modes for Quarter-Step Increments
Figure 3. Decay Modes for Half-Step Increments
Figure 2. Decay Mode for Full-Step Increments
I
OUT1B (%*)
Phase = 1,
Direction = H
I
OUT2B (%*)
Phase = 2,
Direction = H
STEP
100
71
–71
0
–100
100
71
–71
0
–100
Slow
Slow
100
71
–71
0
–100
100
71
–71
0
–100
STEP
Slow
Mixed
Slow
Mixed
Slow
Mixed
Mixed
Slow
Mixed
Slow
Mixed
Slow
Slow
I
OUT1B (%*)
Phase = 1,
Direction = H
I
OUT2B (%*)
Phase = 2,
Direction = H
0
100
92
71
38
–38
–71
–92
–100
0
100
92
71
38
–38
–71
–92
–100
Slow
Mixed
Slow
Slow
Mixed
Slow
Mixed
Slow
Mixed
Mixed
STEP
Slow
I
OUT1B (%*)
Phase = 1,
Direction = H
I
OUT2B (%*)
Phase = 2,
Direction = H
*For precise definition of output levels, refer to table 3
*For precise definition of output levels, refer to table 3
*For precise definition of output levels, refer to table 3


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