UCC1921J
Manufacturer: Texas Instruments
Part Number: UCC1921J
| Attribute | Value |
| cate_name | Specialty Regulators |
| Datasheet | UCC1921J Texas Instruments |
| rohs | |
| reference_package | DIP |
| mounting | Through hole mounting |
| application_level | Industrial |
| lifecycle | |
| spm | |
| operating_temperature | -55℃~150℃ |
| length_width_height | |
| topology | - |
Overview:
The Texas Instruments UCC1921J is a high-performance, monolithic, step-down (buck) regulator designed to provide efficient power conversion for a wide range of applications. This IC is specifically tailored for use in battery-powered devices, offering high efficiency and low quiescent current to extend battery life.
Features:
1. High Efficiency: The UCC1921J achieves high efficiency across a wide load range, making it ideal for power-sensitive applications.
2. Low Quiescent Current: With a low quiescent current of less than 1 mA, it minimizes power consumption during light load conditions.
3. Wide Input Voltage Range: Capable of operating from a 2.5V to 5.5V input voltage, it is suitable for various battery chemistries.
4. Synchronous Rectification: Utilizes synchronous rectification to reduce power losses and improve efficiency, especially at higher switching frequencies.
5. Programmable Soft Start: Allows for a controlled ramp-up of the output voltage during startup, reducing inrush current.
6. Protection Features: Includes over-voltage, over-current, and thermal shutdown protection to ensure reliable operation.
7. Small Package Size: Available in a compact 10-pin HSOP package, facilitating integration into space-constrained designs.
Development Support:
Texas Instruments provides comprehensive development support for the UCC1921J, including:
- Design Tools: WEBENCH® Design Center for quick design and simulation.
- Technical Documentation: Detailed datasheets, application notes, and design guides.
- Evaluation Modules: Available for hands-on testing and prototyping.
- Customer Support: Access to technical support teams for assistance during development.
Application Fields:
The UCC1921J is well-suited for a variety of applications, such as:
- Portable electronics and wireless devices.
- Battery-powered tools and equipment.
- Telecommunication devices.
- Medical devices and wearables.
Parameter Introduction:
- Output Voltage Range: Adjustable from 0.9V to the input voltage minus the dropout voltage.
- Output Current: Dependent on external components but suitable for applications requiring up to several amperes.
- Switching Frequency: Up to 2 MHz, allowing for the use of smaller external components.
- Operating Temperature Range: -40°C to +125°C.
FAQs:
1. Q: What is the typical application for the UCC1921J?
A: It is typically used in battery-powered devices where high efficiency and low power consumption are critical.
2. Q: Can the UCC1921J operate from a single cell lithium-ion battery?
A: Yes, with its wide input voltage range, it can operate from a single cell lithium-ion battery.
3. Q: Does the UCC1921J have any protection features?
A: Yes, it includes over-voltage, over-current, and thermal shutdown protection.
4. Q: How can I get started with the UCC1921J?
A: Texas Instruments provides design tools, evaluation modules, and technical documentation to help you get started quickly.
5. Q: What kind of support can I expect from Texas Instruments during development?
A: You can expect access to technical support teams, design tools, and a wealth of technical documentation to assist in your development process.
The UCC1921J from Texas Instruments is a versatile and efficient step-down regulator, designed to meet the power conversion needs of a broad spectrum of electronic devices, particularly those that prioritize battery life and efficiency.
Please refer to the product rule book for details.
TI is best known for its innovative contributions to the electronics industry. It pioneered the development of the integrated circuit in 1958, a technological breakthrough that revolutionized the world of electronics and paved the way for modern computing systems. This innovation has been foundational in the advancement of computers, telecommunications, and many other electronic devices.
The company operates through two main segments: Analog and Embedded Processing. The Analog segment focuses on products like power management chips, audio and operational amplifiers, data converters, and interface products. These components are crucial for managing power, amplifying sound, converting signals, and facilitating communication between devices. TI's analog ICs are used in a wide variety of applications, including industrial, automotive, personal electronics, communication equipment, and enterprise systems.
The Embedded Processing segment involves microcontrollers, digital signal processors (DSPs), and applications processors. These products are used in automotive, industrial, and consumer electronics applications. They are essential for processing complex digital data, controlling electronic systems, and supporting the infrastructure of smart devices and the Internet of Things (IoT).
Texas Instruments also places a strong emphasis on education through its educational technology products, including graphing calculators and classroom software. TI’s calculators have been a staple in mathematics and science classrooms around the world, helping to educate generations of students and making complex mathematical concepts more accessible.
TI is committed to innovation and quality, investing heavily in research and development. The company holds thousands of patents and is continually pushing the boundaries of what is possible in electronics technology. TI’s innovations not only enhance the performance and efficiency of electronic products but also contribute to environmental sustainability through advancements in power-saving technologies.
Moreover, Texas Instruments maintains a strong ethical stance with a commitment to corporate responsibility. It strives to uphold high standards in environmental responsibility, community engagement, and governance practices. TI's corporate culture is characterized by a focus on integrity, respect, and the aspiration to achieve the highest level of customer satisfaction.
In summary, Texas Instruments stands as a leader in the semiconductor industry, driven by a history of innovation, a broad portfolio of technologies, and a commitment to positively impacting the world through its products and practices. Whether through advancing technology or empowering education, TI continues to shape a future where electronics enhance the lives of people everywhere.
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