Manufacturer Part Number
UC3843BVD1
Manufacturer
onsemi
Introduction
The UC3843BVD1 is a high-performance, fixed-frequency, current-mode PWM controller designed for off-line and DC-DC converter applications. It features a wide supply voltage range, high-speed operation, and integrated protection features, making it a versatile and reliable solution for various power conversion systems.
Product Features and Performance
Wide input voltage range of 7.6V to 30V
Fixed-frequency operation up to 500kHz
Maximum duty cycle of 96%
Current-mode control for improved line and load regulation
Integrated undervoltage lockout (UVLO) and overtemperature protection
Soft-start function for controlled inrush current
Thermal shutdown protection
Product Advantages
Robust and reliable performance for critical power applications
High-speed switching and wide duty cycle range for design flexibility
Integrated protection features to ensure safe and stable operation
Suitable for a variety of off-line and DC-DC converter topologies
Key Reasons to Choose This Product
Proven and reliable performance in numerous power conversion applications
Versatile design capabilities with wide input voltage and switching frequency range
Robust protection features to ensure long-term reliability and safety
Cost-effective solution for cost-sensitive power supply designs
Quality and Safety Features
Manufactured using high-quality, industrial-grade components
Undergoes rigorous testing and quality control measures
Complies with relevant safety and regulatory standards
Compatibility
The UC3843BVD1 is compatible with a wide range of power supply designs, including off-line and DC-DC converters, using various topologies such as boost and flyback.
Application Areas
Switching power supplies
Battery chargers
Industrial and commercial equipment
Telecommunications and networking equipment
Automotive and transportation systems
Product Lifecycle
The UC3843BVD1 is an obsolete product, meaning it has been discontinued by the manufacturer. However, there are alternative and equivalent models available from onsemi, such as the UC3843A, UC3844, and UC3845 series. Customers are advised to contact our website's sales team for more information on these alternative options and their suitability for their specific power conversion requirements.