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TL431IDR2 from ON,ON Semiconductor

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TL431IDR2

Manufacturer: ON, MOT

Programmable Precision Reference

Partnumber Manufacturer Quantity Availability
TL431IDR2 ON, MOT 2333 In Stock

Description and Introduction

Programmable Precision Reference The TL431IDR2 is a precision programmable 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  
- **Sink Current Capability:** Up to 100mA  
- **Initial Voltage Accuracy:** ±0.5% (A grade), ±1% (B grade)  
- **Temperature Stability:** 6mV (typical) over full temperature range  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The TL431IDR2 is a three-terminal adjustable shunt regulator with thermal stability. It provides precise reference voltages and can be used in switching power supplies, voltage monitoring, and error amplifiers.  

### **Features:**  
- Adjustable output voltage  
- Low dynamic output impedance  
- Wide operating current range (1mA to 100mA)  
- Low output noise  
- Fast turn-on response  
- High stability over temperature  

This device is commonly used in power management, feedback control circuits, and precision voltage references.

Application Scenarios & Design Considerations

Programmable Precision Reference

Alternative Part Number

  • LM431AIM3/NOPB --: Pin-compatible adjustable shunt regulator with similar voltage reference tolerance and current capability, widely available and a common drop-in replacement.
  • KA431AZTA --: Same manufacturer family of adjustable shunt regulators with comparable reference voltage and cathode current ratings, suitable for most TL431 applications.
  • AZ431AN-BTRE1 --: Adjustable precision shunt regulator with equivalent electrical characteristics and a different series naming, offering a cost-effective alternative.
  • LM431AIM3 --: Pin-compatible adjustable shunt regulator with similar voltage reference tolerance and current capability, widely available and functionally equivalent to the TL431.
  • KA431AZ --: Industry-standard adjustable shunt regulator offering the same 2.5V reference and programmable output, commonly used as a direct TL431 replacement.

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