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SG3524S

Manufacturer: LT

Regulating Pulse Width Modulator

Partnumber Manufacturer Quantity Availability
SG3524S LT 175 In Stock

Description and Introduction

Regulating Pulse Width Modulator The SG3524S is a pulse width modulation (PWM) controller IC manufactured by various semiconductor companies, including Texas Instruments and ON Semiconductor. Below are its key specifications, descriptions, and features based on available data:

### **Specifications:**  
- **Input Voltage Range:** 8V to 40V  
- **Output Current (Per Channel):** 100mA (sink/source)  
- **Oscillator Frequency Range:** 100Hz to 500kHz (adjustable via external components)  
- **Duty Cycle Range:** 0% to 45% (adjustable)  
- **Reference Voltage Output:** 5V ±1% (50mA max current)  
- **Operating Temperature Range:** -40°C to +85°C (or +125°C for some variants)  
- **Package Type:** SOIC-16 (Surface Mount)  

### **Descriptions:**  
- The SG3524S is a fixed-frequency PWM controller designed for DC-DC converter and power supply applications.  
- It includes an on-board oscillator, error amplifier, voltage reference, and dual alternating output drivers.  
- Commonly used in push-pull, buck, boost, and inverter topologies.  

### **Features:**  
- **Dual Output Drivers:** Alternating or parallel operation for push-pull or single-ended configurations.  
- **Adjustable Dead-Time Control:** Prevents shoot-through in switching circuits.  
- **Soft-Start Capability:** Reduces inrush current during startup.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation above a minimum input voltage.  
- **Current Limiting:** Protects against overcurrent conditions.  
- **Synchronization Capability:** Allows external clock synchronization.  

For exact details, always refer to the manufacturer's datasheet (e.g., Texas Instruments or ON Semiconductor).

Application Scenarios & Design Considerations

Regulating Pulse Width Modulator

Alternative Part Number

  • UC3524ADW --: Pin-compatible regulating pulse width modulator with same function and SOIC package, widely available from TI.
  • TL494CD --: Industry-standard PWM controller with similar dual-output architecture, commonly used as a functional substitute in many designs.
  • KA3524 --: Direct second-source equivalent of the SG3524 series with matching electrical characteristics and pinout.

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