A3977SLP Allegro Microsystems Inc, A3977SLP Datasheet - Page 14

• 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
Microstepping DMOS Driver with Translator
MS
Quarter-Step Operation
1
= L, MS
2
= H, DIR = H
The mixed-decay mode is controlled by the percent fast
decay voltage (V
greater than 0.6V
the voltage on the PFD input is less than 0.21V
fast-decay mode is selected. Mixed decay is between these
two levels.
PFD
DD
). If the voltage at the PFD input is
then slow-decay mode is selected. If
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
DD
then
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