A3977SEDTR-T Allegro Microsystems Inc, A3977SEDTR-T Datasheet - Page 14

• Manufacturer Part Number: A3977SEDTR-T
• Description: LEAD FREE A3977SEDTR
• Manufacturer: Allegro Microsystems Inc

Specifications of A3977SEDTR-T

• Rohs Compliant: YES
• 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: 44-LCC (J-Lead)
• Motor Type: Stepper
• No. Of Outputs: 2
• Output Current: 2.5A
• Output Voltage: 35V
• Supply Voltage Range: 3V To 5.5V
• Driver Case Style: LCC
• No. Of Pins: 44
• Operating Temperature Range: -20°C To +85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 620-1146-2; A3977SEDTR-T

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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