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SG3525AD from ST,ST Microelectronics

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15.625ms

SG3525AD

Manufacturer: ST

Pulse Width Modulator Control Circuit

Partnumber Manufacturer Quantity Availability
SG3525AD ST 30 In Stock

Description and Introduction

Pulse Width Modulator Control Circuit The SG3525AD is a pulse width modulator (PWM) controller manufactured by STMicroelectronics.  

### **Specifications:**  
- **Input Voltage Range:** 8V to 35V  
- **Operating Frequency Range:** 100Hz to 500kHz  
- **Output Current (Source/Sink):** 100mA (per channel)  
- **Duty Cycle Range:** 0% to 49% (adjustable)  
- **Reference Voltage:** 5.1V (±1%)  
- **Oscillator Frequency Adjustment:** Via external resistor (RT) and capacitor (CT)  
- **Soft-Start Function:** Adjustable via external capacitor  
- **Undervoltage Lockout (UVLO):** Ensures proper operation below 8V  
- **Package:** SOIC-16  

### **Descriptions:**  
The SG3525AD is a voltage-mode PWM controller designed for switching power supply applications. It features an on-board 5.1V reference, error amplifier, oscillator, soft-start control, and PWM comparator. It is commonly used in DC-DC converters, inverters, and power regulation circuits.  

### **Features:**  
- **Precision Reference Voltage (5.1V)**  
- **Adjustable Dead-Time Control**  
- **Synchronization Capability**  
- **Dual Alternating Outputs for Push-Pull Applications**  
- **Low Standby Current (8mA typical)**  
- **Thermal Shutdown Protection**  
- **High Noise Immunity**  

This IC is widely used in industrial and consumer power supply designs due to its reliability and flexibility.

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