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TL431AIDR2 from ON,ON Semiconductor

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TL431AIDR2

Manufacturer: ON, MOT

Programmable Precision Reference
Partnumber Manufacturer Quantity Availability
TL431AIDR2 ON, MOT 2504 In Stock

Description and Introduction

Programmable Precision Reference The TL431AIDR2 is a programmable precision shunt regulator manufactured by ON Semiconductor.  

### **Specifications:**  
- **Output Voltage Range:** 2.495V to 36V (adjustable)  
- **Reference Voltage:** 2.495V (typical)  
- **Operating Cathode Current Range:** 1mA to 100mA  
- **Output Impedance:** 0.2Ω (typical)  
- **Temperature Stability:** ±4mV (0°C to 70°C)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The TL431AIDR2 is a three-terminal adjustable shunt regulator with thermal stability over the operating temperature range. It is commonly used in switching power supplies, voltage references, and error amplifiers.  

### **Features:**  
- Adjustable output voltage with two external resistors  
- Low dynamic output impedance (0.2Ω typical)  
- Sink current capability of 1mA to 100mA  
- Equivalent full-range temperature coefficient of 50ppm/°C  
- Low output noise voltage  

This device is RoHS compliant and designed for high-reliability applications.

Application Scenarios & Design Considerations

Programmable Precision Reference

Alternative Part Number

  • LM431AIM3/NOPB --: Pin-compatible adjustable shunt regulator with similar 2.5V reference and tolerance grade, widely available and electrically equivalent in most TL431 applications.
  • KA431AZTA --: Same manufacturer family adjustable shunt reference in TO-92, functionally equivalent to TL431A with comparable reference voltage and current capability.
  • AZ431AN-BTRE1 --: Adjustable precision shunt regulator with 2.5V reference and 1% tolerance, suitable drop-in replacement for TL431A in most circuits.
  • LM431AIM3 --: Pin-compatible adjustable shunt regulator with similar voltage reference tolerance and current capability, widely available and a direct functional replacement.
  • KA431AZ --: Industry-standard adjustable shunt regulator equivalent to the TL431 family, offering comparable reference voltage and regulation performance.
  • AS431ANTR-G1 --: Low-cost adjustable precision shunt regulator with similar electrical characteristics, suitable as a drop-in alternative for general TL431 applications.

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