Texas Instruments

UC3825ADW

UC3825ADW Description

The UC3825ADW from Texas Instruments is a high-performance PWM controller designed for DC-DC switching power supplies. Housed in a 16-SOIC package, this surface-mount IC operates within a wide supply voltage range (8.4V–22V) and supports switching frequencies up to 1MHz, making it ideal for high-efficiency power conversion. With dual transistor driver outputs, it delivers precise control for positive-output configurations, ensuring robust performance in demanding applications.

UC3825ADW Features

• Output Type: Transistor driver (2 outputs) with 50% max duty cycle
• Frequency Range: Adjustable 400kHz–1MHz for flexible design optimization
• Control Features: Integrated current limit, soft start, frequency control, and ramp compensation for enhanced stability
• Robust Operation: 0°C–70°C operating temperature range, RoHS3/REACH compliant
• Reliable Protection: No synchronous rectifier or clock sync, simplifying designs requiring standalone PWM control
• MSL 2 (1 Year): Suitable for extended storage in humid environments

UC3825ADW Applications

• Switch-Mode Power Supplies (SMPS): High-efficiency buck/boost converters
• Industrial Power Systems: Motor drives, UPS, and inverters
• Telecom/Server PSUs: Compact, high-frequency designs
• Automotive/Consumer Electronics: Low-noise DC-DC regulation
• LED Drivers: Precision current control for lighting systems

Conclusion of UC3825ADW

The UC3825ADW stands out for its high switching frequency capability, advanced control features, and rugged design, making it a top choice for engineers developing high-performance power converters. Its Texas Instruments pedigree ensures reliability, while its flexible configuration suits diverse applications from industrial to consumer electronics. For designs requiring fast response, compact footprint, and robust protection, this PWM controller delivers unmatched value.