The SG2525AN is a versatile and innovative Regulating Pulse Width Modulator (PWM) designed and manufactured by STMicroelectronics, a global leader in semiconductor solutions. This integrated circuit is specifically engineered to offer high-performance solutions for a wide array of power supply and conversion applications, including but not limited to switched-mode power supplies (SMPS), DC-DC converters, and motor control systems.

Key Features

• Adjustable Output Control: The SG2525AN provides precise control over output voltage and current, ensuring stable operation across various load conditions.
• Wide Operating Range: With an operating voltage range of 8V to 35V, this PWM controller can accommodate a broad spectrum of power systems and applications.
• Dual Output Channels: It features dual alternating outputs that allow for push-pull, half-bridge, or full-bridge topologies, giving designers flexibility in their circuit configurations.
• Programmable Dead-Time: The SG2525AN allows for the adjustment of dead-time, which is critical for preventing cross-conduction in power stages.
• Oscillator Frequency Flexibility: An onboard oscillator with a frequency range up to 500kHz can be externally programmed to match specific application requirements.

Applications

The SG2525AN is suited for a variety of applications, which include:

• Power supplies for personal computers, TVs, and VCRs
• DC/DC converters for telecommunications equipment
• High-efficiency power converters
• Battery chargers and power factor correction systems
• Motor control circuits

Reliability and Protection

STMicroelectronics has designed the SG2525AN with several protection features to ensure reliable operation under fault conditions. These include under-voltage lockout, which prevents operation when the supply voltage is too low, and over-voltage protection to safeguard the device and the system it controls. Additionally, the thermal shutdown feature protects the chip from overheating, contributing to the overall longevity and durability of the product.

Overall, the SG2525AN from STMicroelectronics stands out as a robust and adaptable PWM controller, ideal for designers looking to create efficient and reliable power supply systems.