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SG6846LDZ from SYSTEMGE

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SG6846LDZ

Manufacturer: SYSTEMGE, FAIRCHILD

Highly-Integrated Green-Mode PWM Controller

Partnumber Manufacturer Quantity Availability
SG6846LDZ SYSTEMGE, FAIRCHILD 7589 In Stock

Description and Introduction

Highly-Integrated Green-Mode PWM Controller The part **SG6846LDZ** is manufactured by **FAIRCHILD**. Below are its specifications, descriptions, and features:  

### **Specifications:**  
- **Manufacturer:** FAIRCHILD  
- **Category:** Integrated Circuits (ICs)  
- **Type:** PWM Controller  
- **Topology:** Flyback, Forward  
- **Control Method:** Current Mode  
- **Frequency Range:** Up to 100kHz  
- **Output Voltage:** Adjustable  
- **Input Voltage Range:** 8.5V to 30V  
- **Operating Temperature:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The **SG6846LDZ** is a high-performance **PWM controller** designed for **AC/DC power supplies**. It operates in **current-mode control**, providing precise regulation and improved transient response. It is commonly used in **flyback and forward converter** applications, supporting a wide input voltage range.  

### **Features:**  
- **Current-mode PWM control** for stable operation  
- **Built-in soft-start** to reduce inrush current  
- **Under-voltage lockout (UVLO)** protection  
- **Cycle-by-cycle current limiting** for overload protection  
- **Adjustable switching frequency** up to 100kHz  
- **Low standby power consumption**  
- **SOIC-8 package** for compact designs  

This information is based on the manufacturer's datasheet. For detailed electrical characteristics and application notes, refer to the official **FAIRCHILD datasheet**.

Application Scenarios & Design Considerations

Highly-Integrated Green-Mode PWM Controller

Alternative Part Number

  • NCP1252ADR2G --: Current-mode PWM controller with similar function and pinout for offline flyback supplies; widely available and well documented.
  • UC3842AN --: Classic industry-standard current-mode PWM controller, easy to source and commonly used as a drop-in functional replacement in SMPS designs.
  • OB2263MP --: Low-cost current-mode PWM controller targeting similar offline adapter applications, often used as a cost-effective substitute.
  • UC3842BN --: Industry-standard current-mode PWM controller widely used in the same SMPS applications; well-documented and readily available as a functional substitute.

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