Texas Instruments

UC3875DWP  

AC DC Converters, Offline Switches

UC3875DWP Description

The UC3875DWP from Texas Instruments is a high-performance full-bridge PWM controller designed for offline AC/DC power conversion applications. Housed in a 28-pin SOIC package, this IC operates within a 9.5V to 20V supply range and supports switching frequencies up to 1MHz, making it suitable for high-efficiency power supplies. With a start-up voltage of 10.75V, it ensures reliable initialization under varying conditions. The device is RoHS3 compliant and rated for 0°C to 70°C operating temperatures, aligning with industrial and commercial requirements.

UC3875DWP Features

• Advanced Control Features: Includes frequency control, soft-start, and synchronization for precise power management.
• Robust Fault Protection: Integrated current limiting safeguards against overloads.
• High Duty Cycle: Supports 100% duty cycle for maximum power delivery.
• Surface-Mount Design: Optimized for compact PCB layouts in space-constrained applications.
• Wide Input Range: Operates efficiently across 9.5V–20V, accommodating diverse power sources.
• 1MHz Switching Frequency: Enables high-frequency designs for reduced component size and improved efficiency.

UC3875DWP Applications

• Switch-Mode Power Supplies (SMPS): Ideal for offline converters and high-voltage DC/DC stages.
• Telecom & Industrial Power Systems: Suited for redundant power modules and distributed power architectures.
• Uninterruptible Power Supplies (UPS): Ensures stable performance in backup power systems.
• Motor Drives & Inverters: Provides precise PWM control for brushless DC motor drives.

Conclusion of UC3875DWP

The UC3875DWP stands out for its versatile control features, high switching frequency, and robust protection mechanisms, making it a top choice for demanding power conversion designs. Its surface-mount compatibility and wide operational range further enhance its suitability for industrial, telecom, and high-efficiency power applications. While classified as Last Time Buy, its performance and reliability ensure continued relevance in legacy and new designs.

UC3875DWP Documents

Download datasheets and manufacturer documentation for UC3875DWP

Datasheets :

UC2875QP      

PCN Obsolescence/ EOL :

EOL 21/Sept/2023      

HTML Datasheet :

UC2875QP