Texas Instruments

UC3842AN  

Power Supply Controllers, Monitors

UC3842AN Description

The UC3842AN is a high-performance, fixed frequency, current mode PWM controller designed for off-line and DC-to-DC converters. Manufactured by Texas Instruments, this device is part of the UCx84xA series and is currently active in the market. It operates within a supply voltage range of 10V to 30V and a current supply of 11 mA. The UC3842AN is designed to work within an operating temperature range of 0°C to 70°C (TA) and is packaged in a through-hole, 8-DIP tube format. It is compliant with the REACH regulation and RoHS3 directive, making it suitable for environmentally conscious applications.

UC3842AN Features

• Fixed Frequency Operation: The UC3842AN operates at a fixed frequency, which simplifies the design process and reduces the need for external components.
• Current Mode Control: This feature provides superior line and load regulation, making it ideal for applications requiring high stability and performance.
• Overvoltage and Undervoltage Protection: The controller includes built-in protection features to safeguard the system from voltage fluctuations.
• Thermal Shutdown: The UC3842AN is equipped with a thermal shutdown feature to prevent damage due to overheating.
• High Efficiency: The device is designed for high-efficiency power conversion, reducing power losses and improving system reliability.
• Low Noise Operation: The UC3842AN operates with low noise, making it suitable for applications where noise interference is a concern.

UC3842AN Applications

The UC3842AN is widely used in various power supply applications due to its robust performance and reliability. Some specific use cases include:

• Switching Power Supplies (SPS): Ideal for designing compact and efficient power supplies for consumer electronics.
• DC-to-DC Converters: Used in battery-powered devices to efficiently manage power conversion.
• Industrial Control Systems: Reliable for applications requiring stable and consistent power regulation.
• Telecommunications Equipment: Provides stable power supply for sensitive communication equipment.

Conclusion of UC3842AN

The UC3842AN, with its robust features and compliance with environmental regulations, stands out as a reliable choice for PWM controller applications. Its fixed frequency operation, current mode control, and built-in protections make it a preferred option for designers looking to create efficient and stable power supply solutions. Whether for consumer electronics, industrial control systems, or telecommunications, the UC3842AN offers a high-performance solution that meets the demands of modern power management challenges.

UC3842AN Documents

Download datasheets and manufacturer documentation for UC3842AN

PCN Assembly/Origin :

UC284/UC384 16/Mar/2022      

Datasheets :

UC1842A-45A, UC2842A-45A, UC3842A-45A      

HTML Datasheet :

UC1842A-45A, UC2842A-45A, UC3842A-45A      

PCN Design/Specification :

UCYYY 13/DEC/2017