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SI9114ADY from VISHAY

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SI9114ADY

Manufacturer: VISHAY, VIH, SILICON

High-Frequency Switchmode Controller
Partnumber Manufacturer Quantity Availability
SI9114ADY VISHAY, VIH, SILICON 2459 In Stock

Description and Introduction

High-Frequency Switchmode Controller The part **SI9114ADY** is manufactured by **SILICON**. Below are the specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** SILICON  
- **Part Number:** SI9114ADY  
- **Type:** PWM Controller IC  
- **Package:** SOIC (Small Outline Integrated Circuit)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input Voltage Range:** 4.5V to 35V  
- **Switching Frequency:** Adjustable up to 1MHz  
- **Output Current:** Up to 1A (driver output)  
- **Duty Cycle Range:** 0% to 100%  

### **Descriptions:**  
The **SI9114ADY** is a high-performance PWM (Pulse Width Modulation) controller designed for DC-DC converter applications. It provides precise voltage regulation and supports a wide input voltage range, making it suitable for power supply designs in industrial, automotive, and telecom systems.  

### **Features:**  
- **Wide Input Voltage Range** (4.5V to 35V)  
- **Adjustable Switching Frequency** (up to 1MHz)  
- **High-Efficiency Synchronous Rectification Support**  
- **Soft-Start Function** for controlled power-up  
- **Undervoltage Lockout (UVLO)** protection  
- **Overcurrent Protection (OCP)**  
- **Thermal Shutdown Protection**  
- **SOIC Package for Compact Designs**  

This information is strictly based on the available technical details for the **SI9114ADY** from SILICON.

Application Scenarios & Design Considerations

High-Frequency Switchmode Controller

Alternative Part Number

  • UC3843BD1 --: Industry-standard current-mode PWM controller in an SO-8 package, functionally similar to the SI9114A and widely available from multiple sources.
  • LM5020MM-1 --: Current-mode PWM controller with comparable supply range and drive capability, suitable as a drop-in functional replacement in many designs.
  • NCP1252ADR2G --: Current-mode PWM controller offering similar control features and SO-8 footprint, providing a cost-effective alternative with good availability.
  • UC3843AD8 --: Industry-standard current-mode PWM controller in SOIC-8, functionally similar to the SI9114A and widely available as a drop-in style replacement.
  • SG3524N --: Classic PWM control IC with similar regulation and drive functions, commonly used as a substitute in power supply designs when the original is unavailable.
  • TL494CD --: Versatile PWM controller with dual outputs and wide input range, suitable as a functional alternative for switching regulator applications.
  • UC3843AN --: Industry-standard current-mode PWM controller in DIP-8, widely available and functionally similar to the SI9114A for switching power supply designs.
  • TL494CN --: Very common fixed-frequency PWM control IC in DIP-16, well stocked and often used to replace obsolete PWM controller parts in power supply circuits.

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