Description
SG3525 PWM Controller IC – High-Performance Switching Regulator
- The SG3525 is a precision pulse-width modulation (PWM) controller IC designed for high-efficiency power supply and inverter applications. It is widely used in DC-DC converters, SMPS (Switched Mode Power Supplies), UPS systems, and motor control circuits due to its reliable performance and flexible configuration.
- This IC features an internal oscillator with adjustable frequency, dual error amplifiers, and a built-in voltage reference, allowing precise control over output regulation. The totem-pole output stage enables direct driving of MOSFETs or power transistors, making it ideal for push-pull, half-bridge, and full-bridge topologies.
Key Features:
- Wide supply voltage range (8V to 35V)
- Adjustable oscillator frequency via external resistor and capacitor
- Dual PWM outputs with dead-time control
- Built-in 5.1V precision reference
- Soft-start capability for controlled startup
- Shutdown (enable/disable)
function
- High-current totem-pole output drivers
Applications:
- Inverters (12V/24V/48V DC to AC)
- SMPS power supplies
- Battery chargers
- DC-DC converters
- Motor speed control systems
- The SG3525 offers stable operation, low external component count, and excellent performance for both industrial and DIY electronics projects.
