Texas Instruments

UCC38C41P  

DC DC Switching Controllers

UCC38C41P Description

The UCC38C41P from Texas Instruments is a high-performance transistor driver IC designed for DC-DC switching controllers in power supply applications. This obsolete but robust device supports boost, flyback, and forward converter topologies, operating at switching frequencies up to 1MHz. With a 6.6V to 18V supply voltage range, it delivers a single positive output and features a 48% maximum duty cycle, making it suitable for medium-power designs. Packaged in an 8-pin DIP (Through Hole), it is RoHS3 compliant and rated for 0°C to 70°C (TJ) operation, ensuring reliability in industrial environments.

UCC38C41P Features

• Output Type: Transistor driver with positive configuration for simplified gate drive.
• Wide Voltage Range: Operates from 6.6V to 18V, accommodating diverse power rails.
• High Switching Frequency: Supports up to 1MHz, enabling compact magnetics and faster transient response.
• Topology Flexibility: Optimized for boost, flyback, and forward converters.
• Duty Cycle Control: 48% max duty cycle ensures stable operation in discontinuous/conduction modes.
• Robust Packaging: 8DIP through-hole for easy prototyping and rugged applications.
• Compliance: RoHS3 compliant and REACH unaffected, meeting environmental standards.

UCC38C41P Applications

• Isolated Power Supplies: Flyback converters in AC/DC adapters and auxiliary power modules.
• LED Drivers: Boost converters for constant-current LED driving.
• Industrial Systems: Forward converters in motor control and PLC power stages.
• Telecom/Networking: DC-DC regulation in 48V intermediate bus architectures.
• Automotive Electronics: Non-critical 12V-to-5V buck-boost applications (within temp limits).

Conclusion of UCC38C41P

The UCC38C41P excels in medium-complexity power designs requiring high-frequency switching and topology versatility. While obsolete, its wide voltage range, duty cycle precision, and through-hole packaging make it a reliable choice for legacy systems or repairs. Engineers valuing simplicity and robustness in industrial, telecom, or LED applications may still find it advantageous despite newer alternatives. For new designs, consider TI’s modern equivalents with enhanced features like synchronous rectification or wider temp ranges.

UCC38C41P Documents

Download datasheets and manufacturer documentation for UCC38C41P

Datasheets :

UCC28C40-45, UCC38C40-45      

PCN Obsolescence/ EOL :

Mult Dev EOL 10/Mar/2022       PDIP 16-Mar-2022      

HTML Datasheet :

UCC28C40-45, UCC38C40-45