Texas Instruments

UC3874DWTR-1  

DC DC Switching Controllers

UC3874DWTR-1 Description

The UC3874DWTR-1 is a highly integrated transistor driver designed for DC-DC switching controllers, specifically tailored for buck topology applications. Manufactured by Texas Instruments, this device is known for its robust performance and versatile functionality. Despite being marked as obsolete, the UC3874DWTR-1 remains a reliable choice for engineers seeking a high-performance solution in surface-mount applications.

This controller operates within a supply voltage range of 9V to 36V, offering flexibility in power supply design. It supports switching frequencies up to 300kHz, enabling efficient power conversion in compact designs. The UC3874DWTR-1 features a positive output configuration and includes a synchronous rectifier, enhancing efficiency and reducing power loss.

UC3874DWTR-1 Features

• Output Type: Transistor Driver
• Output Configuration: Positive
• Frequency - Switching: Up to 300kHz
• Voltage - Supply (Vcc/Vdd): 9V ~ 36V
• Operating Temperature: 0°C ~ 70°C (TA)
• Synchronous Rectifier: Yes
• Control Features: Soft Start
• Duty Cycle (Max): 100%
• Output Phases: 1
• Number of Outputs: 1
• Package: Tape & Reel (TR)
• Compliance: REACH Unaffected, ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 2 (1 Year)
• ECCN: EAR99
• HTSUS: 8542.39.0001

UC3874DWTR-1 Applications

The UC3874DWTR-1 is ideal for a variety of applications where efficient power conversion and compact design are critical. Its buck topology and synchronous rectifier make it particularly suitable for:

• Power Supplies: Delivering high efficiency and low power loss in various power supply designs.
• Telecommunications: Providing reliable power management in telecom equipment.
• Industrial Equipment: Ensuring stable power conversion in industrial applications.
• Consumer Electronics: Enhancing performance in devices requiring efficient power management.

Conclusion of UC3874DWTR-1

The UC3874DWTR-1 stands out in the market due to its comprehensive feature set and robust performance. Its ability to operate at high switching frequencies and support a wide supply voltage range makes it versatile for numerous applications. The inclusion of a synchronous rectifier and soft start feature further enhances its efficiency and reliability. While marked as obsolete, the UC3874DWTR-1 remains a valuable option for engineers looking for a proven solution in DC-DC switching controller applications.

UC3874DWTR-1 Documents

Download datasheets and manufacturer documentation for UC3874DWTR-1