TL431AILPRPG

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Reference
• Characteristics:
  • Adjustable precision shunt regulator
  • Programmable output voltage
  • Low dynamic impedance
  • Wide operating current range
• Package: TO-92, SOT-23, SOIC-8
• Essence: Precision voltage reference
• Packaging/Quantity: Reel, 2500 pieces per reel

Specifications

• Reference Voltage Range: 2.495V to 36V
• Output Current Range: 1mA to 100mA
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TL431AILPRPG has three pins: 1. Anode (A): Connected to the positive terminal of the power supply. 2. Cathode (K): Connected to the load or ground. 3. Reference (R): Provides the adjustable output voltage.

Functional Features

• Adjustable Output Voltage: The TL431AILPRPG allows for precise adjustment of the output voltage according to the application requirements.
• Programmable Shunt Regulator: It acts as a shunt regulator, maintaining a stable voltage across the load by diverting excess current.
• Low Dynamic Impedance: The device exhibits low dynamic impedance, ensuring stability and accuracy in voltage regulation.
• Wide Operating Current Range: The TL431AILPRPG can handle a wide range of operating currents, making it suitable for various applications.

Advantages and Disadvantages

Advantages

• High Precision: The TL431AILPRPG provides accurate voltage references, ensuring reliable performance.
• Easy to Use: Its simple pin configuration and programmable features make it user-friendly.
• Cost-effective: The IC offers cost-effective voltage regulation solutions compared to alternative methods.

Disadvantages

• Limited Output Current: The TL431AILPRPG has a maximum output current of 100mA, which may not be sufficient for high-power applications.
• Temperature Sensitivity: The device's performance can be affected by temperature variations, requiring additional measures for temperature compensation.

Working Principles

The TL431AILPRPG operates based on the principle of a shunt regulator. It compares the reference voltage at the Reference (R) pin with the feedback voltage from the load. By adjusting the current flowing through the internal resistor network, it maintains a stable output voltage across the load.

Detailed Application Field Plans

The TL431AILPRPG finds applications in various fields, including: 1. Power Supplies: It is commonly used in linear power supplies to regulate output voltages and provide stable references. 2. Battery Charging Systems: The IC ensures precise voltage regulation during battery charging processes, preventing overcharging or undercharging. 3. Voltage Monitoring: It can be employed in voltage monitoring circuits to trigger alarms or shutdown systems when voltage levels exceed or fall below certain thresholds. 4. Audio Amplifiers: The TL431AILPRPG helps maintain consistent biasing voltages in audio amplifier circuits, ensuring optimal audio performance.

Detailed and Complete Alternative Models

Some alternative models to the TL431AILPRPG include: - LM4040: Precision Shunt Voltage Reference - LT1236: Micropower Precision Shunt Voltage Reference - REF02: Precision Voltage Reference

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