TL431AIDBZR,215

Product Overview

Category

The TL431AIDBZR,215 belongs to the category of voltage references.

Use

This product is commonly used as a precision shunt regulator in various electronic circuits.

Characteristics

• Provides a stable reference voltage for precise voltage regulation.
• Offers high accuracy and low temperature coefficient.
• Operates over a wide temperature range.
• Can be easily integrated into different circuit designs.

Package

The TL431AIDBZR,215 comes in a small surface-mount SOT-23 package.

Essence

The essence of this product lies in its ability to maintain a constant reference voltage regardless of changes in input voltage or load conditions.

Packaging/Quantity

The TL431AIDBZR,215 is typically packaged in reels containing 3000 units.

Specifications

• Reference Voltage: 2.5V
• Operating Temperature Range: -40°C to +85°C
• Output Current: Up to 100mA
• Initial Accuracy: ±1%
• Temperature Coefficient: 50ppm/°C

Detailed Pin Configuration

The TL431AIDBZR,215 has three pins:

1. Anode (A): Connected to the positive supply voltage.
2. Cathode (K): Connected to the load or ground.
3. Reference (R): Provides the stable reference voltage.

Functional Features

• Voltage Regulation: The TL431AIDBZR,215 compares the reference voltage with the feedback voltage and adjusts the current flowing through the cathode to maintain a constant output voltage.
• Short Circuit Protection: In case of a short circuit, the device limits the current to protect the circuitry.
• Adjustable Output: By connecting external resistors, the output voltage can be adjusted to the desired value.

Advantages and Disadvantages

Advantages

• High accuracy and stability.
• Wide operating temperature range.
• Easy integration into various circuit designs.
• Cost-effective solution for voltage regulation.

Disadvantages

• Limited output current capability.
• Requires external components for precise voltage adjustment.

Working Principles

The TL431AIDBZR,215 operates based on the principle of a shunt regulator. It compares the reference voltage with the feedback voltage and adjusts the cathode current to maintain a constant output voltage. By controlling the current flowing through the cathode, it compensates for changes in input voltage or load conditions, ensuring a stable output voltage.

Detailed Application Field Plans

The TL431AIDBZR,215 finds applications in various fields, including:

1. Power Supplies: Used as a voltage reference in linear and switching power supplies.
2. Battery Charging Systems: Ensures precise voltage regulation during battery charging processes.
3. Audio Amplifiers: Provides stable biasing voltage for audio amplifier circuits.
4. Voltage Monitors: Used in voltage monitoring circuits to trigger alarms or shutdown systems when voltage exceeds certain thresholds.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the TL431AIDBZR,215 include:

1. LM4040: Precision shunt voltage reference with adjustable output.
2. REF3030: Low-power voltage reference with high accuracy.
3. LT1236: Ultra-stable precision reference with low temperature drift.

These alternative models can be considered based on specific application requirements and design constraints.

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