Texas Instruments

UC2874DW-1  

DC DC Switching Controllers

UC2874DW-1 Description

The UC2874DW-1 is a transistor driver IC designed for power management applications, specifically for buck topology. Manufactured by Texas Instruments, this IC is part of the Power Management Integrated Circuit (PMIC) category and is housed in a surface-mount 18SOIC package. Although this product is now obsolete, it was widely used for its robust performance and reliability in various power conversion applications.

UC2874DW-1 Features

The UC2874DW-1 offers several key features that make it a versatile and efficient solution for power management:

• Output Type: Transistor Driver
• Output Configuration: Positive
• Frequency - Switching: Capable of operating at frequencies up to 300kHz, making it suitable for high-frequency applications.
• Voltage - Supply (Vcc/Vdd): Operates within a wide supply voltage range of 9V to 36V, providing flexibility in power supply requirements.
• Control Features: Includes a soft-start feature to prevent inrush current during startup, ensuring a smooth transition and protecting the circuit.
• Duty Cycle (Max): Supports a maximum duty cycle of 100%, allowing for high efficiency and flexibility in power conversion.
• Output Phases: Single output phase, simplifying the design and reducing complexity.
• Synchronous Rectifier: Equipped with a synchronous rectifier, enhancing efficiency and reducing power loss.
• Compliance: REACH Unaffected and ROHS3 Compliant, ensuring environmental and regulatory standards are met.
• Moisture Sensitivity Level (MSL): MSL 2 (1 Year), indicating a moderate level of moisture sensitivity, suitable for standard manufacturing processes.

UC2874DW-1 Applications

The UC2874DW-1 is well-suited for a variety of applications where efficient power conversion and control are required:

• Power Supplies: Ideal for designing efficient power supplies in various electronic devices.
• Telecommunications: Used in telecom equipment where reliable power management is crucial.
• Consumer Electronics: Suitable for applications in consumer electronics that require high-frequency operation and efficient power conversion.
• Industrial Equipment: Applicable in industrial settings where robust and reliable power management is essential.

Conclusion of UC2874DW-1

The UC2874DW-1, despite being obsolete, remains a notable example of Texas Instruments' commitment to high-performance power management solutions. Its wide operating voltage range, high-frequency capability, and synchronous rectifier feature make it a robust choice for applications requiring efficient power conversion. The soft-start feature and compliance with environmental standards further enhance its appeal. While newer models may offer additional features and improved performance, the UC2874DW-1 continues to serve as a reliable reference for power management design in various industries.

UC2874DW-1 Documents

Download datasheets and manufacturer documentation for UC2874DW-1

Datasheets :

UC1874, 2874, 3874-1,2      

PCN Obsolescence/ EOL :

Mult Dev EOL 3/Jul/2018      

HTML Datasheet :

UC1874, 2874, 3874-1,2