A4989SLDTR-T Allegro Microsystems Inc, A4989SLDTR-T Datasheet - Page 8

• Manufacturer Part Number: A4989SLDTR-T
• Description: DUAL FULL BRDG MOSFET DRVR W/MICROSTEP TRANS
• Manufacturer: Allegro Microsystems Inc

Specifications of A4989SLDTR-T

• Applications: Stepper Motor Controller, 2-Phase
• Number Of Outputs: 1
• Voltage - Load: 12 V ~ 50 V
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 38-TFSOP (0.173", 4.40mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 620-1389-2

A4989
Figure 2. Decay Mode for Full-Step Increments
I
Phase = 1,
Direction = H
I
Phase = 2,
Direction = H
*For precise definition of output levels, refer to table 3
OUT1B
OUT2B
STEP
(%*)
(%*)
–100
–100
100
–71
100
–71
71
71
0
0
*For precise definition of output levels, refer to table 3
Figure 4. Decay Modes for Quarter-Step Increments
I
Phase = 1,
Direction = H
I
Phase = 2,
Direction = H
OUT1B
OUT2B
STEP
(%*)
(%*)
Slow
–100
–100
Slow
100
–38
–71
–92
100
–38
–71
–92
92
71
38
92
71
38
0
0
Slow
Mixed
Mixed
Slow
Mixed
Mixed
Dual Full-Bridge MOSFET Driver
Slow
Figure 3. Decay Modes for Half-Step Increments
*For precise definition of output levels, refer to table 3
I
Phase = 1,
Direction = H
I
Phase = 2,
Direction = H
OUT1B
OUT2B
Mixed
with Microstepping Translator
Mixed
Slow
(%*)
(%*)
STEP
Mixed
–100
–100
Mixed
100
–71
100
–71
71
71
Slow
0
Mixed
0
Slow
Slow
Mixed
Mixed
Mixed
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
Slow
Slow
Mixed
Slow
Mixed
Slow
Mixed
Slow
Mixed
Slow
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