The DRV8825 Stepper Motor Driver with Aluminum Heat Sink with R250 is a breakout board for TI’s DRV8825 microstepping bipolar stepper motor driver.
The module has a pinout and interface that are nearly identical to those of the A4988 stepper motor driver carriers, so it can be used as a higher-performance drop-in replacement for those boards in many applications.
The DRV8825 features adjustable current limiting, overcurrent, and overtemperature protection, and six microstep resolutions (down to 1/32-step). It operates from 8.2 – 45 V and can deliver up to approximately 1.5 A per phase without a heat sink or forced air flow (rated for up to 2.2 A per coil with sufficient additional cooling).
Using the Driver
Features :
- Microstep resolutions: full, 1/2, 1/4, 1/8, 1/16, and 1/32.
- Simple step and direction control interface
- Six different step resolutions: full-step, half-step, 1/4-step, 1/8-step, 1/16-step, and 1/32-step
- Adjustable current control lets you set the maximum current output with a potentiometer. Hence lets you use voltages above your stepper motor’s rated voltage to achieve higher step rates
- Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay)
- 45 V maximum supply voltage
- Built-in regulator (no external logic voltage supply needed)
- Can interface directly with 3.3 V and 5 V systems
- Over-temperature thermal shutdown, over-current shutdown, and under-voltage lockout
- Short-to-ground and shorted-load protection
- 4-layer, 2 oz copper PCB for improved heat dissipation
- Exposed solderable ground pad below the driver IC on the bottom of the PCB
Package Includes :
1 x DRV8825 Stepper Motor Driver with Aluminum Heat Sink
DRV8825 Stepper Motor Driver with Aluminum Heat Sink. Overview
The DRV8825 Stepper Motor Driver with Aluminum Heat Sink is a compact breakout board built around TI’s DRV8825 bipolar microstepping driver. Designed for precise control of NEMA-style stepper motors, it delivers smooth motion in applications like 3D printers, CNC machines, and robotics. Its integrated aluminum heat sink and low-resistance current sense resistor enable reliable operation at higher currents.
Key Features of DRV8825 Stepper Motor Driver with Aluminum Heat Sink.
- Wide supply range from 8.2 V to 42 V DC for versatile motor voltages
- Adjustable current limiting via low-resistance sense resistor (R250) for up to 1.5 A continuous (2.2 A peak with cooling)
- Six microstep resolutions: full, 1/2, 1/4, 1/8, 1/16, and 1/32-step for fine motion control
- Built-in overcurrent and overtemperature protection to safeguard your motors and driver
- Aluminum heat sink pre-installed for enhanced thermal dissipation during prolonged operation
- Pin-compatible drop-in replacement for A4988 carriers, simplifying upgrades and repairs
- Genuine product with fast shipping from Zbotic
Applications and Use Cases
- Driving stepper axes in RepRap and other DIY 3D printers
- Precision control of milling and engraving spindles in desktop CNC routers
- Robotic arm joints requiring microstepping smoothness
- Camera slider and pan-tilt mechanisms for time-lapse photography
- Automated pick-and-place machines in small-scale electronics assembly
- Positioning stages in lab automation and laser cutters
How to Use DRV8825 Stepper Motor Driver with Aluminum Heat Sink.
To get started, mount the DRV8825 module on a matching socket or solder it onto your custom PCB. Connect the motor coils to the A1/A2 and B1/B2 terminals, supply 8.2–42 V to VMOT and ground, and feed logic signals (2.5–5 V) to STEP, DIR, and enable pins. Adjust the current-limit potentiometer while monitoring the VREF voltage, and configure microstep mode via the M0–M2 pins. The pre-installed aluminum heat sink helps maintain safe operating temperatures during extended runs.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
Q: Can I directly replace an A4988 driver with the DRV8825?
Yes. The DRV8825 uses the same pinout as the A4988 carrier, making it a drop-in replacement. You may need to recalibrate the current-limit potentiometer to suit your motor’s current requirements.
Q: How do I set the maximum current limit?
Adjust the small potentiometer on the board while measuring the reference voltage (VREF) at the test point. Use the TI datasheet formula (Imax ≈ VREF/(5 × Rsense))—with the onboard R250 resistor—to achieve your desired coil current.
Q: Is the included heat sink sufficient for 2.2 A peak current?
The pre-installed aluminum heat sink allows up to 1.5 A continuous per phase. For peak currents up to 2.2 A, additional forced airflow (e.g., a small fan) is recommended to maintain safe temperatures.
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| Model | DRV8825 |
|---|---|
| SKU | AI2879 |
| Weight | 0.01 kg |
| Availability | Out of Stock |
Applications & Use Cases
The DRV8825 Stepper Motor Driver with Aluminum Heat Sink.( Lower current limiting resistance) is a versatile stepper motor drivers used across a wide range of applications including CNC machines, 3D printers, robotics, camera sliders, and pick-and-place machines.
Common use cases:
- Driving NEMA 17 stepper motors in a 3D printer
- Building a CNC router
- Precise positioning in a robotic arm
This product is ideal for CNC builders, 3D printer makers, and robotics engineers.
Technical Tip: TMC2208/2209 drivers offer silent operation via StealthChop. A4988/DRV8825 are more affordable. Set current limit via the onboard potentiometer.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
