TL431IDR2

Product Overview

• Category: Integrated Circuit
• Use: Voltage Reference
• Characteristics: Adjustable Precision Shunt Regulator
• Package: SOIC-8
• Essence: TL431IDR2 is a voltage reference integrated circuit that provides adjustable precision shunt regulation for various applications.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Reference Voltage Range: 2.495V to 36V
• Output Current: Up to 100mA
• Operating Temperature Range: -40°C to +85°C
• Accuracy: ±1%
• Cathode Current: 1mA to 100mA
• Anode Current: 1mA to 150mA
• Cathode Voltage: 2.5V to 36V
• Anode Voltage: 2.5V to 37V

Pin Configuration

The TL431IDR2 has the following pin configuration:

```

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| | --| 1 |-- Anode --| 2 |-- Cathode --| 3 |-- Reference --| 4 |-- N/C (No Connection) --| 5 |-- N/C (No Connection) --| 6 |-- N/C (No Connection) --| 7 |-- N/C (No Connection) --| 8 |-- N/C (No Connection) |____| ```

Functional Features

• Adjustable output voltage reference.
• High accuracy and stability.
• Low dynamic impedance.
• Wide operating temperature range.
• Low power consumption.
• Short-circuit protection.

Advantages

• Provides precise voltage regulation.
• Easy to use and integrate into various circuits.
• Offers flexibility with adjustable output voltage.
• Suitable for a wide range of applications.
• Low cost compared to alternative solutions.

Disadvantages

• Limited output current capability.
• Requires external components for proper operation.
• Sensitivity to temperature variations.
• Not suitable for high-power applications.

Working Principles

The TL431IDR2 is based on the principle of shunt regulation. It compares the reference voltage at the cathode with an adjustable voltage divider network connected to the anode. By adjusting the resistive divider, the output voltage can be set to the desired value. The TL431IDR2 acts as a variable resistor between the cathode and anode, regulating the current flow to maintain a stable output voltage.

Detailed Application Field Plans

The TL431IDR2 finds applications in various fields, including:

1. Voltage regulators in power supplies.
2. Battery charging circuits.
3. Switching power converters.
4. Audio amplifiers.
5. LED drivers.
6. Precision measurement equipment.
7. Automotive electronics.
8. Industrial control systems.

Detailed and Complete Alternative Models

1. LM4040: Precision Micropower Shunt Voltage Reference
2. LT1236: Precision Reference
3. REF02: Precision Voltage Reference
4. MAX6126: Ultra-High-Precision Voltage Reference
5. ADR421: Precision Voltage Reference

These alternative models offer similar functionality and can be used as substitutes for the TL431IDR2 in various applications.

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