L7985TR
Manufacturer: STMicroelectronics
Part Number: L7985TR
| Attribute | Value |
| cate_name | DC DC Converters |
| Datasheet | L7985TR STMicroelectronics |
| rohs | Compliance |
| reference_package | QFN |
| mounting | SMD mount，glue mount |
| application_level | Industrial |
| lifecycle | On sale |
| spm | Tape & Reel |
| min_operating_temperature | -40℃(TJ) |
| max_operating_temperature | 150℃(TJ) |
| length_width_height | 3mm*3mm*880μm |
| functions | Step-Down |
| max_input_voltage | 38V |
| max_output_voltage | 38V |
| min_input_voltage | 4.5V |
| min_output_voltage | 600mV |
| number_of_outputs | 1 |
| output_type | Adjustable |
| switching_frequency | 250KHz~1MHz |
| synchronous_rectifier | No |
| topology | Buck |
Overview:
The L7985TR is a high-performance stepper motor driver from STMicroelectronics, designed to meet the demanding requirements of various industrial and consumer applications. This driver is known for its robustness, precision, and versatility, making it a popular choice for engineers and hobbyists alike.
Features:
1. High Torque Capability: The L7985TR can deliver high torque outputs, making it suitable for heavy-duty applications.
2. Wide Voltage Range: It operates over a wide voltage range, accommodating various power supply needs.
3. Microstepping Capability: The driver supports microstepping, which allows for smoother and more precise motor control.
4. High Efficiency: With a high efficiency rating, the L7985TR minimizes power loss and heat generation.
5. Protection Features: It includes overcurrent, overvoltage, and thermal shutdown protection to ensure reliable operation and longevity.
6. Compact Design: The L7985TR is available in a compact package, making it easy to integrate into space-constrained designs.
Development Support:
STMicroelectronics provides comprehensive development support for the L7985TR, including:
- Datasheets: Detailed documentation outlining the technical specifications and operating parameters.
- Application Notes: Practical guides that offer insights into implementing the driver in various applications.
- Technical Support: Access to STMicroelectronics' technical experts for assistance with design and integration challenges.
Application Areas:
The L7985TR is widely used in a variety of fields, including:
- Industrial Automation: For precise control in manufacturing processes.
- Medical Equipment: Ensuring accurate movement in diagnostic and therapeutic devices.
- Robotics: Providing reliable motion control in robotic systems.
- Consumer Electronics: Used in high-precision devices such as 3D printers and CNC machines.
Parameter Introduction:
- Input Voltage Range: Vcc (4.5V to 40V)
- Output Current per Phase: Up to 5A (with appropriate heat sinking)
- Step Angle: Adjustable, supporting full-step, half-step, and microstepping modes.
- Operating Temperature Range: -40°C to +125°C
- Package Type: Through-hole or surface-mount options available.
Frequently Asked Questions (FAQs):
1. Q: Can the L7985TR be used in high-vibration environments?
A: Yes, the L7985TR is designed with robustness in mind and can withstand high-vibration environments.
2. Q: Does the L7985TR support any communication interfaces for control?
A: The L7985TR is primarily controlled through its input pins and does not have built-in communication interfaces. However, it can be interfaced with microcontrollers or other control systems via external connections.
3. Q: How can I ensure the L7985TR operates within safe temperature limits?
A: Adequate heat sinking and ensuring proper ventilation are crucial for maintaining safe operating temperatures.
4. Q: Is there a software tool available to help with motor control using the L7985TR?
A: While there isn't a specific software tool provided by STMicroelectronics for the L7985TR, developers can use various motor control libraries available for different microcontrollers to implement control algorithms.
5. Q: Can the L7985TR be used in battery-powered applications?
A: Yes, the L7985TR's wide input voltage range makes it suitable for battery-powered applications, provided the voltage does not exceed the maximum specified limit.
The L7985TR from STMicroelectronics is a versatile and reliable stepper motor driver that offers a combination of high performance and ease of use, making it an excellent choice for a wide range of applications.
Please refer to the product rule book for details.
Founded in 1987 through the merger of two government-owned semiconductor companies, SGS Microelettronica of Italy and Thomson Semiconducteurs of France, STMicroelectronics has grown to become a leading integrated device manufacturer. The company is headquartered in Geneva, Switzerland, and operates on a global scale, with around 46,000 employees, 11 main manufacturing sites, advanced research and development centers, and sales offices all over the world.
ST's product portfolio includes a wide range of semiconductor solutions including microcontrollers, sensors, power management ICs, and advanced digital and analog ICs. These products serve a multitude of applications in various industries such as automotive, industrial, personal electronics, communications equipment, and computing. The company is particularly noted for its innovative products in the fields of smart driving and applications requiring high power efficiency and performance.
In the automotive sector, ST is at the forefront of developing technologies for advanced driver-assistance systems (ADAS), electric and hybrid vehicles, and automotive infotainment systems. Its products help improve the safety, efficiency, and performance of vehicles on the road today.
In the industrial market, ST's semiconductors play a crucial role in the automation of factories and industrial processes. This includes everything from motor control systems to advanced robotics and energy management solutions. ST is also a key player in the development of smart grid technology, providing advanced solutions for energy generation, transmission, and distribution.
For personal electronics, ST provides a range of sensors, power management devices, and connectivity solutions that enhance the user experience in mobile phones, wearables, and smart home devices. The company's technologies enable more interactive and energy-efficient products that meet the increasing demands of modern consumers.
ST is also committed to sustainability, with a strong focus on environmental responsibility in its manufacturing processes and product design. The company actively works to reduce its ecological footprint by minimizing energy consumption, using sustainable materials, and adhering to strict environmental standards.
Research and development are central to ST's strategy, with a significant annual investment in R&D to fuel innovation and ensure the company stays at the cutting edge of technology developments. ST holds thousands of patents and is continuously working on new technologies and products to address the evolving needs of its customers and the market.
In conclusion, STMicroelectronics is a pioneer in the semiconductor industry, known for its product innovation, technological leadership, and commitment to sustainability. With a broad range of products and solutions, ST is integral to the advancement of electronics technology across a wide spectrum of applications, driving forward the development of smart, energy-efficient solutions that make a positive impact on people's lives and the environment.
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