onsemi

UC2842AN

The UC2842AN is a high-voltage, fixed-frequency current mode control switch-mode power supply controller manufactured by ON Semiconductor. It is designed for use in a wide range of off-line power supply applications, including desktop computer power supplies, switch-mode power supplies, and DC-to-DC converters.

Description:

The UC2842AN is a monolithic integrated circuit that provides all the necessary features for a current mode control switch-mode power supply. It includes an error amplifier, oscillator, current limit comparator, reference voltage source, and protection circuits. The device is available in a standard SOIC-8 package.

Features:

• High-voltage operation up to 600V
• Fixed 40kHz switching frequency
• Current mode control for improved line and load regulation
• Overcurrent protection
• Thermal shutdown protection
• Soft-start function to reduce inrush current
• Burst mode operation for high efficiency at light loads
• Push-pull output stage for driving external power transistors

Applications:

• Desktop computer power supplies
• Switch-mode power supplies
• DC-to-DC converters
• Telecommunications power supplies
• Industrial power supplies
• Battery chargers

In summary, the UC2842AN is a versatile and reliable power supply controller that offers high performance and flexibility for a wide range of applications. Its fixed switching frequency and current mode control make it an ideal choice for designers looking to create efficient and reliable power supply solutions.