Allegro MicroSystems A4988SETTR-T
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 28-VFQFN Exposed Pad |
| Interface | Logic |
| Mfr | Allegro MicroSystems |
| Mounting Type | Surface Mount |
| Operating Temperature | -20°C ~ 150°C (TJ) |
| Technology | DMOS |
| Applications | General Purpose |
| Current - Output | 2A |
| Supplier Device Package | 28-QFN (5x5) |
| Output Configuration | Half Bridge (4) |
| Function | Driver - Fully Integrated, Control and Power Stage |
| Voltage - Supply | 3V ~ 5.5V |
| Voltage - Load | 8V ~ 35V |
| Motor Type - Stepper | Bipolar |
| Motor Type - AC, DC | - |
| Step Resolution | 1, 1/2, 1/4, 1/8, 1/16 |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | A4988 |
| REACH Status | REACH Unaffected |
| Standard Package | 1,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
A4988SETTR-T Stepper Motor Driver DMOS Logic 28-QFN
The A4988SETTR-T from Allegro MicroSystems is a highly integrated, microstepping bipolar stepper motor driver with built-in translator and current control, designed to simplify the implementation of precise motor control in a wide range of applications. This compact driver operates from 8V to 35V and can deliver up to 2A per coil with adjustable current limiting, making it ideal for CNC machines, 3D printers, robotics, and automated industrial equipment. The device features six-step microstepping control (down to 1/16-step resolution), thermal shutdown circuitry, and crossover-current protection, ensuring reliable and efficient motor operation while minimizing external component requirements.
Application Scenarios
The A4988SETTR-T is widely used in precision motion control systems, including 3D printers (e.g., extruder and bed leveling motors), CNC routers, robotic arms, and automated lab equipment. Its compact design and integrated current control make it ideal for DIY electronics, small-scale automation, and embedded motor control projects. The driver's ability to operate at high voltages (up to 35V) also makes it suitable for industrial-grade stepper motor applications where higher torque and speed are required.
Alternative Motor Driver Models
● DRV8825: A higher-current (2.5A per phase) stepper motor driver with similar microstepping capabilities, suitable for more demanding applications.
● TMC2208: A silent stepper motor driver with advanced stealthChop technology for ultra-quiet operation in 3D printers and sensitive environments.
● L298N: A dual H-bridge motor driver capable of driving both stepper and DC motors, though without built-in microstepping control.
● TB6600: A high-power stepper motor driver (up to 4.5A per phase) for industrial CNC and automation systems requiring higher torque.
