Texas Instruments

UC3849QTR

UC3849QTR Description

The UC3849QTR is a secondary-side controller IC designed for power management applications, manufactured by Texas Instruments. This device is part of the Power Management Integrated Circuit (PMIC) category and is housed in a 28-pin PLCC package. It is designed for surface mount applications, making it suitable for modern, compact electronic designs. The UC3849QTR operates within a supply voltage range of 8V to 20V and a supply current of 21 mA, ensuring efficient power usage. It is rated for an operating temperature range of 0°C to 70°C (TA), making it suitable for a variety of industrial and consumer applications. The device is packaged in tape & reel (TR) format, facilitating automated assembly processes. The UC3849QTR is RoHS3 compliant and REACH unaffected, ensuring it meets environmental and safety standards. It has a moisture sensitivity level (MSL) of 2 (1 Year), which is important for handling and storage considerations. Although the product status is marked as obsolete, it remains a reliable choice for legacy systems and specific applications where its unique features are required.

UC3849QTR Features

The UC3849QTR offers several key features that make it a versatile and reliable choice for power management applications:

• Programmability: While not verified for DigiKey programmability, the UC3849QTR provides flexibility in configuration, allowing for tailored performance in various power management scenarios.
• Wide Operating Temperature Range: The device operates reliably within a temperature range of 0°C to 70°C (TA), making it suitable for applications in diverse environmental conditions.
• Efficient Power Usage: With a supply current of 21 mA and a supply voltage range of 8V to 20V, the UC3849QTR ensures efficient power consumption, contributing to energy savings and reduced operational costs.
• Surface Mount Compatibility: The surface mount mounting type allows for integration into compact and modern electronic designs, enhancing the overall system footprint and performance.
• Environmental Compliance: The UC3849QTR is RoHS3 compliant and REACH unaffected, ensuring it meets stringent environmental and safety standards, making it suitable for global markets.
• Packaging and Handling: The tape & reel (TR) packaging format facilitates automated assembly processes, improving manufacturing efficiency and reducing assembly time.
• Moisture Sensitivity Level: With an MSL of 2 (1 Year), the UC3849QTR ensures reliable performance and longevity, even in environments with varying humidity levels.

UC3849QTR Applications

The UC3849QTR is ideal for a range of power management applications, including:

• Power Supplies: The device's wide operating voltage range and efficient power usage make it suitable for various power supply designs, ensuring reliable and stable power delivery.
• Industrial Control Systems: The UC3849QTR's robust operating temperature range and surface mount compatibility make it an excellent choice for industrial control systems, where reliability and compact design are crucial.
• Consumer Electronics: The device's efficiency and environmental compliance make it suitable for consumer electronics, where energy savings and regulatory compliance are important considerations.
• Legacy Systems: Despite its obsolete status, the UC3849QTR remains a reliable option for maintaining and upgrading legacy systems where its specific features are required.

Conclusion of UC3849QTR

The UC3849QTR from Texas Instruments is a versatile and reliable secondary-side controller IC designed for power management applications. Its wide operating voltage range, efficient power usage, and surface mount compatibility make it suitable for a variety of applications, including power supplies, industrial control systems, and consumer electronics. The device's environmental compliance and robust operating temperature range further enhance its appeal. Although marked as obsolete, the UC3849QTR remains a valuable component for specific applications and legacy systems where its unique features are essential.