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Description
TRINAMIC TMC249A-SA Stepper Motor Driver, 3V to 5.5V supply, 34V/50 mA/8 Outputs, SOIC-28The TMC249A SA is a smart high current Micro Stepping Driver for bi polar stepper motors. The integrated unique sensorless stall detection stallGuard makes it a good choice for applications, where a reference point is needed, but where a switch cannot be used. The ability to predict an overload makes this an optimum choice for drives, where a high reliability is desired. It provides an SPI interface as well as the classical analogue digital control. A
The TMC249A-SA is a smart high current Micro Stepping Driver for bi-polar stepper motors. The integrated unique sensorless stall detection stallGuard� makes it a good choice for applications, where a reference point is needed, but where a switch cannot be used. The ability to predict an overload makes this an optimum choice for drives, where a high reliability is desired. It provides an SPI� interface as well as the classical analogue/digital control. A full set of protection and diagnostic features makes this device very rugged. It directly drives external MOSFETs for currents up to 6A. This way it reaches an extremely high efficiency and allows driving of a high motor current without cooling measures even at high environment temperatures. The high motor current makes this device ideal for miniaturized highly dynamic and high torque drive systems.
- SPI interface
- Stepper supported motor
Applications
Motor Drive & Control
Product details
| Motor Type | Stepper |
| Operating Temperature Min | -40�C |
| Output Current | 50mA |
| No. of Outputs | 8Outputs |
| Driver Case Style | SOIC |
| Operating Temperature Max | 125�C |
| No. of Pins | 28Pins |
| Output Voltage | 34V |
| Product Range | - |
| Automotive Qualification Standard | - |
| Supply Voltage Min | 3V |
| Packaging | Each |
| Supply Voltage Max | 5.5V |
| MSL | MSL 2 - 1 year |
Other details
| Brand | TRINAMIC |
| Part Number | TMC249A-SA |
| Quantity | Each |
| Technical Data Sheet EN |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Annoyed but extremely nice
Color: 2858-Silver Gold
Edited review:
At first I was mad because the tool bent, possibly due to my own misunderstanding of how to use, but I then bought a watch link removal kit and everything popped out.
As for the watch, it's really nice and has a great color scheme. I ordered the gold and silver.
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Reviewed in the United States on March 19, 2023
★★★★★ 4
Very nice watch for the money
Color: 2858-Silver Gold-Blue Face
First of all it is a $40 watch. It is a very nice $$40 watch. I am a little disappointed in the action. I have one i bought a couple years ago and the action was more like a sweep the new one is more of a tick. It's still a nice watch but the quality has dropped
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Reviewed in the United States on March 25, 2026
★★★★★ 5
Great timepieces
Color: 2858-All Black-Black Gold, Color: 2858-All Black-Black Gold
I gave particular this watch to our grandson for his 18th birthday and he was thrilled with it. I have purchased 4 other watches from this company and I will continue to do so. The product looks like a much more expensive watch and we get compliments all the time. I gave a different one to my husband and 2 others as Christmas gifts and my friends were blown away. The watches arrives in a great box, with a tool for sizing and in a very timely manner. The rose-colored watch I bought for myself comes with a beautiful bracelet that reads " She believed she could so she did", my mantra. Love this company.
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Reviewed in the United States on January 26, 2025
★★★★★ 5
Muy bueno
Color: 2858-Silver Gold-Blue Face
Muy bueno, tal como se ve en la foto y de excelente calidad. Me gustó mucho
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Reviewed in the United States on March 31, 2026
★★★★★ 1
Worst watch I have ever purchased!
Color: 2858-Silver Gold-Black Face
The rods in between in each link aren’t solid rods at all! They’re made up of almost long, thin staples that bend and break EXTREMELY easily. Taking them off is incredibly difficult to begin with! I’ve removed links on hundreds of watches, it’s not my first rodeo, it has never been this ridiculously difficult due to extremely cheap materials. I wish I could give this a negative 100, never seen a cheaper watch. It’s extremely light and looks nothing like the picture either. Seriously, don’t waste your time. It’s the worst, cheapest watch you can buy. I shouldn’t expect better from Amazon.
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Reviewed in the United States on October 21, 2023
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