Texas Instruments

UC3846QTR  

DC DC Switching Controllers

UC3846QTR Description

The UC3846QTR is a highly integrated transistor driver designed for DC-DC switching controllers, manufactured by Texas Instruments. This obsolete yet robust component is ideal for applications requiring precise control and high efficiency in power conversion systems. With a switching frequency of 500kHz, the UC3846QTR ensures fast and efficient power delivery. It operates within a wide supply voltage range of 6.95V to 40V, making it versatile for various power supply designs. The device is REACH unaffected and RoHS3 compliant, adhering to stringent environmental standards. It features a moisture sensitivity level of 2 (1 year), ensuring reliability in diverse environmental conditions. The UC3846QTR supports synchronous rectification, enhancing efficiency and performance. It is designed for surface mount applications, packaged in a tape & reel (TR) format, and operates within a temperature range of 0°C to 70°C (TA).

UC3846QTR Features

• Output Type: Transistor Driver, providing robust control for power conversion.
• Output Configuration: Positive, ensuring compatibility with a wide range of circuits.
• Frequency - Switching: 500kHz, enabling high-frequency operation for compact and efficient designs.
• Voltage - Supply (Vcc/Vdd): 6.95V to 40V, offering flexibility in power supply requirements.
• Control Features: Includes current limit, enable, frequency control, and soft start, providing comprehensive control over power delivery.
• Duty Cycle (Max): 50%, ensuring balanced power distribution and preventing overloading.
• Output Phases: 1, simplifying circuit design and reducing complexity.
• Clock Sync: Yes, allowing synchronization with other devices for coordinated operation.
• Number of Outputs: 2, providing dual output capabilities for versatile applications.
• Synchronous Rectifier: Yes, enhancing efficiency and reducing power loss.
• Mounting Type: Surface Mount, suitable for modern, space-efficient PCB designs.
• Package: Tape & Reel (TR), facilitating automated assembly processes.

UC3846QTR Applications

The UC3846QTR is well-suited for a variety of applications where high efficiency and precise control are paramount. Its dual output capabilities and synchronous rectification make it ideal for:

• Power Supplies: Efficiently converting and regulating power in various electronic devices.
• DC-DC Converters: Providing stable and reliable power conversion in compact form factors.
• Telecommunications Equipment: Ensuring stable power delivery in sensitive communication systems.
• Industrial Automation: Powering control systems and sensors with high reliability and efficiency.
• Consumer Electronics: Enhancing power management in devices such as laptops, smartphones, and other portable electronics.

Conclusion of UC3846QTR

The UC3846QTR from Texas Instruments is a versatile and efficient transistor driver for DC-DC switching controllers. Despite being obsolete, its robust features and wide operating range make it a reliable choice for power conversion applications. The inclusion of synchronous rectification, dual outputs, and comprehensive control features sets it apart from similar models. Its compliance with environmental standards and suitability for surface mount applications further enhance its appeal. The UC3846QTR is ideal for a range of applications, from power supplies and DC-DC converters to telecommunications and industrial automation, ensuring efficient and reliable power management.

UC3846QTR Documents

Download datasheets and manufacturer documentation for UC3846QTR

Datasheets :

UC1846,7, 2846,7, 3846,7      

PCN Obsolescence/ EOL :

UCYYY 29/Jun/2017      

HTML Datasheet :

UC1846,7, 2846,7, 3846,7