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SG1842Y from LINFINTY

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SG1842Y

Manufacturer: LINFINTY, LINFINIT, LINFINITY

CURRENT MODE PWM CONTROLLER
Partnumber Manufacturer Quantity Availability
SG1842Y LINFINTY, LINFINIT, LINFINITY 520 In Stock

Description and Introduction

CURRENT MODE PWM CONTROLLER Here are the factual details about part SG1842Y from the manufacturer LINFINITY:  

### **Specifications:**  
- **Type:** Switching Regulator IC  
- **Topology:** PWM Controller  
- **Input Voltage Range:** 8V to 40V  
- **Output Voltage:** Adjustable  
- **Switching Frequency:** 100kHz (typical)  
- **Duty Cycle:** Up to 90%  
- **Operating Temperature Range:** -25°C to +85°C  
- **Package:** DIP-8 or SOP-8  

### **Descriptions:**  
- The SG1842Y is a pulse-width modulation (PWM) controller designed for DC-DC converter and power supply applications.  
- It provides high efficiency and precise voltage regulation.  
- Suitable for flyback, forward, and boost converter topologies.  

### **Features:**  
- **Current Mode Control:** Enhances loop response and stability.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation within input voltage limits.  
- **Error Amplifier:** Provides accurate feedback control.  
- **Overcurrent Protection:** Safeguards against excessive load conditions.  

This information is based on the manufacturer's datasheet for the SG1842Y. For detailed electrical characteristics and application circuits, refer to the official documentation.

Application Scenarios & Design Considerations

CURRENT MODE PWM CONTROLLER

Alternative Part Number

  • UC3842AN --: Industry-standard current-mode PWM controller with the same function and pinout as the SG1842Y, widely available and well documented.
  • TL3842P --: Direct functional equivalent current-mode PWM controller in a DIP package, suitable drop-in replacement for the SG1842Y.
  • SG3524N --: Alternative PWM controller IC with similar regulation function, usable in many SG1842Y applications where exact pinout match is not critical.
  • MC3842P --: Current-mode PWM controller with comparable electrical characteristics and pinout, suitable as a functional substitute for the SG1842Y.

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