TLV431BCDCKT

Product Overview

• Category: Integrated Circuit
• Use: Voltage Reference
• Characteristics: Precision, Adjustable, Low Dropout
• Package: SOT-23 (Small Outline Transistor)
• Essence: TLV431BCDCKT is a precision adjustable shunt voltage reference that can be used in various applications requiring a stable voltage reference.
• Packaging/Quantity: Available in tape and reel packaging with 3000 units per reel.

Specifications

• Reference Voltage Range: 1.24V to 16V
• Operating Temperature Range: -40°C to +125°C
• Output Current: Up to 100mA
• Initial Accuracy: ±1%
• Temperature Coefficient: 50ppm/°C

Pin Configuration

The TLV431BCDCKT package consists of 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 stable voltage reference output.

Functional Features

• Precision Voltage Reference: The TLV431BCDCKT provides a highly accurate and stable voltage reference, making it suitable for precision applications.
• Adjustable Output Voltage: The reference voltage can be adjusted using external resistors, allowing flexibility in system design.
• Low Dropout Voltage: The device operates with a low dropout voltage, minimizing power dissipation and improving efficiency.
• Wide Operating Temperature Range: The TLV431BCDCKT can operate in extreme temperature conditions, making it suitable for various environments.

Advantages and Disadvantages

Advantages

• High precision and stability
• Adjustable output voltage
• Low dropout voltage
• Wide operating temperature range
• Small package size

Disadvantages

• Limited output current capability (up to 100mA)
• Requires external resistors for voltage adjustment

Working Principles

The TLV431BCDCKT is based on the principle of a shunt voltage reference. It uses a precision bandgap circuit to generate a stable reference voltage. The reference voltage is compared to an internal voltage divider network, and the resulting error signal is used to control the shunt regulator. By adjusting the current flowing through the shunt regulator, the TLV431BCDCKT maintains a constant output voltage.

Detailed Application Field Plans

The TLV431BCDCKT can be used in various applications, including:

1. Voltage Regulation: It can be used as a precise voltage reference for voltage regulators, ensuring stable and accurate output voltages.
2. Battery Management: The TLV431BCDCKT can be employed in battery charging circuits to provide a stable reference voltage for monitoring battery voltage levels.
3. Precision Instrumentation: It is suitable for precision measurement equipment that requires a stable voltage reference for accurate readings.
4. Audio Amplifiers: The TLV431BCDCKT can be utilized in audio amplifier circuits to provide a stable bias voltage for improved audio performance.

Detailed and Complete Alternative Models

1. LM4040: Precision Shunt Voltage Reference with Fixed Output Voltages.
2. REF3030: Low Dropout Voltage Reference with Adjustable Output.
3. LT1634: Precision Voltage Reference with High Initial Accuracy.

These alternative models offer similar functionality and can be considered as alternatives to the TLV431BCDCKT depending on specific requirements.

In conclusion, the TLV431BCDCKT is a precision adjustable shunt voltage reference that provides a stable and accurate reference voltage. Its small package size, adjustable output voltage, and wide operating temperature range make it suitable for various applications in voltage regulation, battery management, precision instrumentation, and audio amplifiers. Alternative models such as LM4040, REF3030, and LT1634 offer similar functionality and can be considered as alternatives to the TLV431BCDCKT.