Texas Instruments

UCC28C56LDR  

DC DC Switching Controllers

UCC28C56LDR Description

The UCC28C56LDR is an industrial-grade, low-power current mode controller designed for a wide range of power conversion applications. Manufactured by Texas Instruments, this device is optimized for high efficiency and performance in various topologies including buck, boost, flyback, forward converter, and SEPIC. The UCC28C56LDR features a maximum supply voltage of 30V and operates at a switching frequency of 1MHz, making it suitable for high-speed applications. It is packaged in a surface-mount format, specifically in a tape and reel (TR) configuration, which facilitates automated assembly processes.

UCC28C56LDR Features

• Output Type: Transistor Driver
• Output Configuration: Positive
• Frequency - Switching: 1MHz
• Voltage - Supply (Vcc/Vdd): 30V
• Synchronous Rectifier: Yes
• Control Features: Current Limit, Dead Time Control, Enable, Frequency Control, Soft Start
• Duty Cycle (Max): 100%
• Output Phases: 1
• Clock Sync: Yes
• Number of Outputs: 1
• Compliance: REACH Unaffected, ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The UCC28C56LDR offers several unique features that provide significant advantages over similar models. Its synchronous rectifier capability enhances efficiency, especially in high current applications. The inclusion of current limit and dead time control ensures robust operation and protection against short circuits and other anomalies. The soft start feature minimizes inrush current, protecting the power supply and extending its lifespan. Additionally, the device’s ability to synchronize with an external clock ensures precise timing and reduces electromagnetic interference (EMI).

UCC28C56LDR Applications

The UCC28C56LDR is ideal for a variety of industrial applications where high efficiency, compact size, and robust performance are critical. Its versatility across multiple topologies makes it suitable for:

• Buck Converters: Used in point-of-load (POL) power supplies for microprocessors and FPGAs.
• Boost Converters: Ideal for LED drivers and DC-DC converters in automotive applications.
• Flyback Converters: Commonly used in isolated power supplies for telecommunications and medical equipment.
• Forward Converters: Suitable for high-efficiency power supplies in industrial control systems.
• SEPIC Converters: Used in applications requiring voltage inversion or step-up/down conversion.

Conclusion of UCC28C56LDR

The UCC28C56LDR from Texas Instruments is a highly versatile and efficient low-power current mode controller designed for a wide range of power conversion applications. Its robust feature set, including synchronous rectification, current limit, and soft start, ensures reliable operation and high efficiency. The device’s compatibility with various topologies and its compliance with industry standards make it an excellent choice for designers seeking a reliable and efficient solution for their power conversion needs. Whether used in buck, boost, flyback, forward converter, or SEPIC configurations, the UCC28C56LDR delivers outstanding performance and reliability, making it a standout choice in the electronics industry.

UCC28C56LDR Documents

Download datasheets and manufacturer documentation for UCC28C56LDR

PCN :

Product Change Notification (PDF)