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A3977SLP

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A3977SLP

IC MTR DRV BIPOLR 3-5.5V 28TSSOP

Manufacturer: Allegro MicroSystems

Categories: Motor Drivers, Controllers

Quality Control: Learn More

Allegro MicroSystems A3977SLP is a bipolar stepper motor driver featuring DMOS technology. This fully integrated component combines control and power stages, offering a robust solution for precise motor control. The A3977SLP supports various step resolutions including full, half, 1/4, and 1/8 steps, facilitating optimized performance for demanding applications. It operates with a supply voltage range of 3V to 5.5V and can drive loads up to 35V. The device delivers an output current of 2.5A and features four half-bridge output configurations. Packaged in a 28-TSSOP-EP with an exposed pad for enhanced thermal management, this surface-mount component is designed for operation in temperatures ranging from -20°C to 150°C (TJ). It is commonly utilized in general-purpose applications across various industries requiring accurate motion control.

Additional Information

Series: -RoHS Status: RoHS non-compliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:
Technical Details:
PackagingTube
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.

Integrated circuits are used in:

The different types of integrated circuits include:

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.

Our operations teams will handle logistics and fulfillment to ensure supply chain continuity, and our support team will provide clear communication throughout the process.

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.