SG3525 PWM Controller IC

The SG3525 PWM Controller IC (3525 IC) is a high-performance pulse width modulation control chip designed for switching power supplies and inverter applications. It is commonly used in DC-DC converters, SMPS circuits, and power inverter systems where precise voltage regulation and efficient power control are required.

This IC is highly popular among electronics engineers and hobbyists due to its stable operation, adjustable frequency control, and built-in protection and control features. It is suitable for both industrial and DIY power electronics projects.

Key Features

• Built-in PWM control system
• Adjustable oscillator frequency
• Error amplifier for stable output regulation
• Soft start capability
• Dead-time control for improved efficiency
• Dual output channels for push-pull operation
• High reliability and stable performance
• Suitable for high-frequency switching applications

Technical Specifications

• Part Number: SG3525 / 3525 IC
• Type: PWM Controller IC
• Operating Voltage: 8V to 35V
• Oscillator Frequency: Up to 400 kHz (adjustable)
• Output Type: Dual complementary outputs
• Duty Cycle Range: 0% to 49% per output
• Temperature Range: -40°C to +85°C
• Package Type: DIP-16 / SOP-16

Applications

• Switch Mode Power Supplies (SMPS)
• DC-DC converters
• Solar power inverters
• Battery charger circuits
• Motor speed control systems
• Industrial power regulation systems
• DIY inverter and electronics projects