A4984SESTR-T Allegro Microsystems Inc, A4984SESTR-T Datasheet - Page 8

• Manufacturer Part Number: A4984SESTR-T
• Description: IC STEPPER MOTOR DRIVER 24QFN
• Manufacturer: Allegro Microsystems Inc

Specifications of A4984SESTR-T

• Applications: Stepper Motor Driver, 2 Phase
• Number Of Outputs: 1
• Current - Output: *
• 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-WFQFN Exposed Pad
• Motor Type: Stepper
• No. Of Outputs: 2
• Output Current: 2A
• Output Voltage: 35V
• Supply Voltage Range: 3V To 5.5V
• Driver Case Style: QFN
• No. Of Pins: 24
• Operating Temperature Range: -20°C To +85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 620-1377 - Board Eval Motor Control A4984
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

A4984
Figure 2. Missed steps in low-speed microstepping
Figure 3. Continuous stepping using automatically-selected mixed stepping (ROSC pin grounded)
I
Step input 10 V/div.
LOAD
Voltage on ROSC terminal 2 V/div.
Step input 10 V/div.
500 mA/div.
Decay
Slow
Missed
Step
Decay
Mixed
DMOS Microstepping Driver with Translator
Decay
Slow
Decay
Mixed
t → , 1 s/div.
t → , 1 s/div.
Mixed Decay
No Missed
Steps
Decay
Slow
And Overcurrent Protection
Decay
Mixed
Decay
Slow
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com
Decay
Mixed
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