The A4982SETTR-T is a dual full bridge microstepping driver designed for bipolar stepper motors, capable of operating in full-, half-, quarter-, and sixteenth-step modes. It supports an output voltage of up to 35 V and can handle output currents of ±2 A. The driver features a built-in translator that simplifies operation by allowing a single pulse on the STEP input to advance the motor by one microstep, eliminating the need for complex programming or phase sequence tables. This driver includes a fixed off-time current regulator that operates in either Slow or Mixed decay modes, which helps reduce audible noise and improve step accuracy. It also incorporates internal synchronous rectification to enhance power efficiency during PWM operation. Protection features include thermal shutdown, undervoltage lockout, and crossover-current protection, ensuring reliable operation. The A4982SETTR-T is available in a compact 32-contact QFN package with an exposed thermal pad for improved heat dissipation. It is lead-free and designed to meet no smoke no fire (NSNF) requirements, making it suitable for applications where safety is a concern. This product is ideal for projects requiring a straightforward and efficient solution for driving stepper motors.
The A4982 simplifies microstepping motor control with its integrated translator, automatic current decay mode selection, and integrated protection features.
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Download Datasheet
Manufacturer: Allegro MicroSystems, LLC
Win Source Part Number: 089016-A4982SETTR-T
Packaging: Reel - TR
Applications: General Purpose
Mounting: SMD (SMT)
Technology: DMOS
Output Current: 2A
Voltage - Load: 8 V to 35 V
Motor Type - Stepper: Bipolar
Step Resolution: 1, 1/2, 1/4, 1/16
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -20°C to 150°C (TJ)
Case / Package: 32-QFN (5x5)
Purpose: Driver - Fully Integrated, Control and Power Stage
Supply Voltage - Operating: 3 V to 5.5 V
Is this a common-used part?: Yes
Popularity: High
Fake Threat In the Open Market: 44 pct.
Supply and Demand Status: Balance
Application Field: Used in Industrial, Motor Drive & Control
Quantity per package: 1,500
Bipolar Motor Driver DMOS Logic 32-QFN (5x5)
Bipolar Motor Driver DMOS Logic 32-QFN (5x5)
Bipolar Motor Driver DMOS Logic 32-QFN (5x5)
MOTOR DRIVER, STEPPER, 2A, QFN-32, FULL REEL; Motor Type:Stepper; No. of Outputs:2Outputs; Output Current:2A; Output Voltage:35V; Driver Case Style:QFN; No. of Pins:32Pins; Supply Voltage Min:3V; Supply Voltage Max:5.5V; MSL:- RoHS Compliant: Yes
MOTOR DRIVER, STEPPER, 2A, QFN-32; Motor Type:Stepper; No. of Outputs:2Outputs; Output Current:2A; Output Voltage:35V; Driver Case Style:QFN; No. of Pins:32Pins; Supply Voltage Min:3V; Supply Voltage Max:5.5V; Product Range:- RoHS Compliant: Yes
IC MTR DRVR BIPOLAR 3-5.5V 32QFN
IC MTR DRVR BIPOLAR 3-5.5V 32QFN
Bipolar Motor Driver DMOS Logic 32-QFN (5x5)
| Allegro MicroSystems Inc. | Win Source Electronics | DigiKey | Newark, An Avnet Company | Shenzhen Shengyu Electronics Technology Limited | Lingto Electronic Limited | Quarktwin Technology Ltd. | |
|---|---|---|---|---|---|---|---|
| Product Category | Stepper Motor Drives | Motion Controllers | DC Motor Drives | Motor Controllers | Motor Controllers | Motor Controllers | Motor Controllers |
| Product Number | A4982SETTR-T | 089016-A4982SETTR-T | 620-1340-1-ND | 67R9667 | A4982SETTR-T | A4982SETTR-T | A4982SETTR-T |
| Product Name | 2A Dual Full Bridge 1/16 Microstep Driver W/Ocp | PMIC - PMIC - Motor Drivers, Controllers - A4982SETTR-T | Motor Drivers, Controllers | Motor Driver, Stepper, 2A, Qfn-32, Full Reel; Motor Type Allegro Microsystems | Integrated Circuits (ICs) - Power Management (PMIC) - Motor Drivers, Controllers | PMIC - Motor Drivers, Controllers | Motor Drivers, Controllers |
| Motor / System | Microstepping Motor | Stepper | |||||
| Configuration | PCB Mount | PCB Mount; 32-VFQFN Exposed Pad | |||||
| Operating Temperature | -20 to 150 C (-4 to 302 F) | -20 to 150 C (-4 to 302 F) | -20 to 150 C (-4 to 302 F) | ||||
| AC Input | 3 to 6 volts | 3 to 6 volts | 3 to 6 volts | ||||
| DC Input | 3 to 6 volts | 3 to 6 volts | 3 to 6 volts |
