TL1431AIDT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Reference
• Characteristics: Precision, Adjustable Output, Low Temperature Coefficient
• Package: SOIC-8
• Essence: TL1431AIDT is a precision shunt regulator that provides a stable voltage reference. It is commonly used in various electronic circuits where a precise voltage reference is required.
• Packaging/Quantity: TL1431AIDT is typically sold in reels of 2500 units.

Specifications

• Reference Voltage Range: 2.495V to 36V
• Output Current: Up to 100mA
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature Range: -40°C to +85°C
• Input Voltage Range: Up to 40V
• Reference Voltage Tolerance: ±0.4%
• Line Regulation: 0.2%/V
• Load Regulation: 0.4%/mA

Pin Configuration

The TL1431AIDT IC has the following pin configuration:

```

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| | --| REF K |-- --| Vref A |-- --| Anode C |-- --| Cathode |-- --| K OUT |-- --|_______ |-- | | | |_______|___| ```

Functional Features

• Voltage Reference: TL1431AIDT provides a highly accurate and stable voltage reference.
• Adjustable Output: The output voltage can be adjusted by connecting external resistors.
• Low Temperature Coefficient: The TL1431AIDT exhibits low sensitivity to temperature changes, ensuring consistent performance over a wide temperature range.
• Short Circuit Protection: The device includes built-in short circuit protection to prevent damage in case of a fault.

Advantages and Disadvantages

Advantages: - High precision voltage reference - Adjustable output voltage - Low temperature coefficient - Short circuit protection

Disadvantages: - Limited output current capacity (up to 100mA) - Requires external resistors for voltage adjustment

Working Principles

The TL1431AIDT operates as a shunt regulator, maintaining a stable voltage reference between the REF and Cathode pins. By adjusting the voltage at the Anode pin using external resistors, the desired output voltage can be obtained. The device compares the reference voltage with the input voltage and regulates the current flow through the Cathode pin to maintain a constant output voltage.

Detailed Application Field Plans

The TL1431AIDT is widely used in various applications that require precise voltage references, such as:

1. Power Supply Regulation: It can be used as a voltage reference in power supply circuits to ensure stable and accurate output voltages.
2. Battery Charging: TL1431AIDT can be employed in battery charging circuits to provide a reliable voltage reference for controlling the charging process.
3. Instrumentation: It finds application in precision measurement instruments where accurate voltage references are crucial for precise readings.
4. Audio Equipment: TL1431AIDT can be utilized in audio equipment to maintain consistent voltage levels for improved audio quality.

Detailed and Complete Alternative Models

Some alternative models to TL1431AIDT that offer similar functionality include:

1. LM4040: Precision Shunt Voltage Reference IC with adjustable output voltage.
2. LT1236: Ultra-precision shunt voltage reference with low temperature drift.
3. MAX6126: High-precision, low-noise voltage reference with adjustable output.

These alternative models can be considered based on specific requirements and availability.

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