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Name: A4988SETTR-T
Brand: Allegro MicroSystems
SKU: A4988SETTR-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Allegro MicroSystems A4988SETTR-T

Part No.:: A4988SETTR-T

Manufacturer:: Allegro MicroSystems

Package:: 28-VFQFN Exposed Pad

Datasheet:: A4988SETTR-T.pdf

Description:: IC MTR DRVR BIPOLAR 3-5.5V 28QFN

In Stock:: 3933

Quantity:: Add To Cart

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A4988SETTR-T Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®,Bulk
Series:
-
ProductStatus:
Active
MotorType-Stepper:
Bipolar
MotorType-ACDC:
-
Function:
Driver - Fully Integrated, Control and Power Stage
OutputConfiguration:
Half Bridge (4)
Interface:
Logic
Technology:
DMOS
StepResolution:
1, 1/2, 1/4, 1/8, 1/16
Applications:
General Purpose
Current-Output:
2A
Voltage-Supply:
3V ~ 5.5V
Voltage-Load:
8V ~ 35V
OperatingTemperature:
-20°C ~ 150°C (TJ)
MountingType:
Surface Mount

A4988SETTR-T this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including A4988SETTR-T price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for A4988SETTR-T to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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A4988SETTR-T information

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A4988SETTR-T Typische Anwendungsschaltung

A4988SETTR-T

A microstepping driver with an integrated translator and overcurrent protection is the A4988SETTR-T. This device is engineered for driving bipolar stepper motors.

Applications:

1. 3D Printers: Ensures precise control of the print head's movements.

2. CNC Machines: Manages the accurate movement of the tool or spindle.

3. Automated Equipment: Useful in devices that need exact position control.

Key Features:

1. Voltage Operation: Operates up to 35 V.

2. Microstepping: whole, half, quarter, and sixteenth-step modes are supported.

3. Overcurrent Protection: Protects the device against high current damages.

4. Built-in Translator: Simplifies stepper motor control with easy step and direction control interface.

Circuit Connection for CNC Machine:

1. Power Supply:

- VMOT: Connect this pin to the motor voltage, which can range from 8 V to 35 V based on the stepper motor's specifications.

- GND: Link this to the system's ground.

2. Motor Connections:

- 1A, 1B, 2A, 2B: These pins are directly connected to the corresponding coils of the bipolar stepper motor.

3. Control Logic:

- STEP: This pin receives pulse signals to drive the motor steps. Attach to a microcontroller or pulse generator.

- DIR: Controls the rotation direction. Setting HIGH spins the motor one way, while LOW turns it the other.

- MS1, MS2, MS3: The microstepping mode is chosen by these pins. For example, setting MS1 HIGH and MS2 & MS3 LOW configures the driver for half-step mode.

4. Additional Inputs:

- VDD: Power this with a 3.3 V or 5 V supply for logic.

- ENABLE: This active-low pin, when set to LOW, will enable the motor. Connect to GROUND if always active.

- RESET & SLEEP: Reset and Sleep control pins. If not used, bridge them together and link to VDD.

Design Considerations:

1. Decoupling: Place capacitors close to the A4988SETTR-T VMOT and VDD pins. This ensures noise reduction in the power supply.

2. Heat Dissipation: The A4988SETTR-T might generate significant heat during operation. Proper PCB layout, thermal pads, or even heat sinks can help manage temperature.

3. Adjusting Current: The A4988SETTR-T current delivered to the motor can be tweaked by using a potentiometer on the REF pin, ensuring the motor gets required torque without overheating.

4. Protective Measures: Ensure protective diodes are in place between the motor output pins and both VMOT and GROUND. This shields against voltage spikes.

In summary, the A4988SETTR-T is a reliable choice for controlling bipolar stepper motors across numerous applications. With appropriate design considerations, its features can be optimized for applications like CNC machines, ensuring precision and durability.

A4988SETTR-T FAQ

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We have a professional and experienced quality control team to strictly verify and test the A4988SETTR-T. All suppliers must pass our qualification reviews before they can publish their products including A4988SETTR-T on icwhale.com; we pay more attention to the channels and quality of A4988SETTR-T products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the A4988SETTR-T price and inventory displayed accurate?

The price and inventory of A4988SETTR-T fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

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Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of A4988SETTR-T?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the A4988SETTR-T we delivered, we will accept the replacement or return of the A4988SETTR-T only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of A4988SETTR-T.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations