A3977SLP Allegro Microsystems Inc, A3977SLP Datasheet - Page 4

• Manufacturer Part Number: A3977SLP
• Description: IC MOTOR DRVR PWM DUAL 28TSSOP
• Manufacturer: Allegro Microsystems Inc

Specifications of A3977SLP

• Applications: Stepper Motor Driver
• Number Of Outputs: 1
• Current - Output: ±2.5A
• 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: 28-TSSOP Exposed Pad, 28-eTSSOP, 28-HTSSOP
• Operating Current: 12mA
• Operating Temperature Classification: Commercial
• Package Type: TSSOP EP
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

A3977
LP Pin-out
(TSSOP)
Table 1. Microstep Resolution Truth Table
Microstepping DMOS Driver with Translator
MS
L
H
L
H
1
MS
L
L
H
H
2
Full step (2 phase)
Quarter step
Resolution
Eighth step
Half step
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
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