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TL431IN from PHI,Philips

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TL431IN

Manufacturer: PHI

PROGRAMMABLE VOLTAGE REFERENCE

Partnumber Manufacturer Quantity Availability
TL431IN PHI 1770 In Stock

Description and Introduction

PROGRAMMABLE VOLTAGE REFERENCE The TL431IN is a precision programmable shunt regulator manufactured by PHI (Philips Components).  

### **Specifications:**  
- **Output Voltage Range:** 2.5V to 36V  
- **Reference Voltage:** 2.495V (typical)  
- **Operating Current Range:** 1mA to 100mA  
- **Temperature Stability:** ±4mV (0°C to 70°C)  
- **Output Impedance:** 0.2Ω (typical)  
- **Package:** PDIP-8 (Plastic Dual In-Line Package)  
- **Operating Temperature Range:** 0°C to 70°C  

### **Descriptions:**  
The TL431IN is a three-terminal adjustable shunt regulator with guaranteed thermal stability. It provides precise voltage regulation and can be used as a replacement for Zener diodes in many applications.  

### **Features:**  
- Adjustable output voltage  
- Low dynamic output impedance  
- Sink current capability up to 100mA  
- Low output noise  
- Fast turn-on response  
- Wide operating temperature range  

This device is commonly used in power supplies, battery chargers, and voltage monitoring circuits.

Application Scenarios & Design Considerations

PROGRAMMABLE VOLTAGE REFERENCE

Alternative Part Number

  • KA431AZ --: Industry-standard adjustable shunt regulator equivalent to TL431 with similar voltage reference tolerance and current capability, widely available and pin-compatible.
  • LM431ACZ --: Direct functional equivalent adjustable precision shunt regulator with comparable reference voltage and cathode current ratings, suitable drop-in replacement.
  • AZ431AN-B --: Adjustable shunt regulator with similar electrical characteristics and TO-92 package, offering good availability as an alternative source.

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