SG3525AP013TR

The SG3525AP013TR is a versatile integrated circuit (IC) manufactured by STMicroelectronics, primarily designed for use in power supply applications. This device is a dual PWM (Pulse Width Modulation) controller that is widely utilized in various switching power supply topologies, including buck, boost, and flyback converters.

Key Features:

1. Dual PWM Controller: The SG3525AP013TR features two independent PWM outputs, allowing it to control multiple power stages or provide a more complex control scheme in a single package.

2. Voltage Regulation: It includes an internal voltage reference of 5V, which is used for feedback and regulation purposes, ensuring stable output voltage levels.

3. Adjustable Duty Cycle: The PWM outputs can be adjusted to provide a wide range of duty cycles, typically from 0% to 100%, making it suitable for various applications requiring different power levels.

4. Frequency Range: The device operates at a frequency range that can be set by external components, typically from a few kHz up to several hundred kHz, allowing for flexibility in design.

5. Soft Start Feature: The SG3525AP013TR includes a soft start function that helps to limit inrush current during startup, improving reliability and reducing stress on the power components.

6. Dead Time Control: The IC provides dead time control between the two outputs, which is essential for preventing shoot-through conditions in half-bridge or full-bridge configurations.

7. Protection Features: It incorporates several protection features, including overcurrent protection, under-voltage lockout, and thermal shutdown, enhancing the safety and reliability of the power supply.

8. Package Type: The SG3525AP013TR is typically available in a 16-pin DIP (Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package, making it easy to integrate into various circuit designs.

9. Temperature Range: The device is designed to operate over a wide temperature range, typically from -40°C to +85°C, making it suitable for industrial and automotive applications.

Applications:

The SG3525AP013TR is commonly used in:

• Switching power supplies
• DC-DC converters
• Battery chargers
• Inverters
• Motor control applications

Conclusion:

The SG3525AP013TR from STMicroelectronics is a robust and flexible PWM controller that provides essential features for efficient power management in a variety of applications. Its combination of dual outputs, adjustable duty cycle, and built-in protection mechanisms makes it a popular choice among engineers designing power supply circuits.