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A3977SLPTR

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A3977SLPTR

IC MTR DRV BIPOLR 3-5.5V 28TSSOP

Manufacturer: Allegro MicroSystems

Categories: Motor Drivers, Controllers

Quality Control: Learn More

The Allegro MicroSystems A3977SLPTR is a bipolar stepper motor driver featuring DMOS technology. This fully integrated component combines control and power stages for efficient motor operation. It provides a logic interface and is housed in a 28-TSSOP-EP package with an exposed pad for enhanced thermal performance. The device supports a voltage supply range of 3V to 5.5V and a load voltage range of 8V to 35V, with a maximum output current of 2.5A. Its output configuration includes four half-bridges. The A3977SLPTR offers selectable step resolutions of 1, 1/2, 1/4, and 1/8, making it suitable for applications requiring precise motor control. Operating temperature ranges from -20°C to 150°C (TJ). This component finds utility in general-purpose applications across various industries requiring precise stepper motor actuation. It is supplied on a Tape & Reel (TR).

Additional Information

Series: -RoHS Status: RoHS non-compliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: Tape & Reel (TR)Datasheet:
Technical Details:
PackagingTape & Reel (TR)
Package / Case28-TSSOP (0.173"", 4.40mm Width) Exposed Pad
Mounting TypeSurface Mount
FunctionDriver - Fully Integrated, Control and Power Stage
Current - Output2.5A
InterfaceLogic
Operating Temperature-20°C ~ 150°C (TJ)
Output ConfigurationHalf Bridge (4)
Voltage - Supply3V ~ 5.5V
ApplicationsGeneral Purpose
TechnologyDMOS
Voltage - Load8V ~ 35V
Supplier Device Package28-TSSOP-EP
Motor Type - StepperBipolar
Motor Type - AC, DC-
Step Resolution1, 1/2, 1/4, 1/8

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Integrated Circuit FAQs

An integrated circuit (IC) is a semiconductor chip that contains transistors, resistors, capacitors, and other electronic components on a single silicon substrate. ICs are the foundation of modern electronics and power devices such as smartphones, computers, automotive systems, and industrial equipment.

Integrated circuits work by routing electrical signals through microscopic semiconductor components fabricated onto a silicon chip. Depending on the design, ICs can process, amplify, store, or control electronic data.

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Frequently Asked Questions

As a full line supplier, we specialize in sourcing obsolete and hard to find electronic components for your projects.

After we receive your request submission, one of our account executives will reach out to your team to gather more information about your project requirements and ensure we tailor the order to your needs.

Once requirements such as date codes, quantities, target prices, testing requirements, and more are discussed, our purchasing team will secure stock through Microchip USA’s direct access to manufacturing partners’ excess inventory lists.

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Our net terms for electronic component sourcing are flexible and vary by order. Our account executives will work with you to ensure our terms meet your company’s needs. We also offer scheduled shipments and inventory management solutions to ensure a steady supply of electronic components, maintain cash flow, and maximize warranty periods. We always offer a warranty on all tested parts. See our sales terms and conditions for more information.

We partner with industry-leading AS6171 & AS6081-certified third party testing labs to mitigate risk and support a wide array of end uses for your company’s requirements. Testing includes but isn’t limited to: Decapsulation & Internal Dye Verification. X-Ray Inspection & Analysis, External Visual Inspection, Surface Texture Analysis (SEM), and Electrical Pin Correlation.