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SG3843GAS

BiCMOS Green-Mode PWM Controllers

Partnumber Manufacturer Quantity Availability
SG3843GAS 165 In Stock

Description and Introduction

BiCMOS Green-Mode PWM Controllers The part **SG3843GAS** is a **PWM Controller IC** manufactured by **ON Semiconductor**. Below are the specifications, descriptions, and features based on the available knowledge:

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage (VCC):** 8.5V to 30V  
- **Output Frequency:** Up to 500kHz  
- **Duty Cycle Range:** 0% to 100%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The **SG3843GAS** is a fixed-frequency pulse-width modulation (PWM) controller designed for DC-DC converter applications. It provides precise control for power supply designs with features like adjustable duty cycle, current sensing, and soft-start capability.  

### **Features:**  
- **Current-Mode Control:** Improves loop response and simplifies compensation.  
- **Adjustable Oscillator Frequency:** Allows flexibility in design.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation within voltage range.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **High-Current Totem Pole Output:** Directly drives power MOSFETs.  
- **Low Startup Current:** Typically 0.5mA.  

This information is sourced from ON Semiconductor's official documentation. For detailed application notes, refer to the manufacturer's datasheet.

Application Scenarios & Design Considerations

BiCMOS Green-Mode PWM Controllers

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