TLV431ALPREG

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage References

Characteristics: - Adjustable Precision Shunt Regulator - Low Voltage Reference - Programmable Output Voltage - Low Quiescent Current - High Accuracy and Stability - Wide Operating Range

Package: SOT-23 (Small Outline Transistor 23)

Essence: The TLV431ALPREG is a precision shunt regulator that provides a stable reference voltage. It is commonly used in various electronic circuits to ensure accurate voltage levels.

Packaging/Quantity: The TLV431ALPREG is typically sold in reels, with each reel containing 3000 units.

Specifications

Reference Voltage Range: 1.24V to 16V
Initial Accuracy: ±1%
Temperature Coefficient: 50ppm/°C
Operating Temperature Range: -40°C to +85°C
Quiescent Current: 60µA (typical)
Sink Current Capability: 100mA (maximum)

Detailed Pin Configuration

The TLV431ALPREG has three pins:

Anode (A): Connected to the positive terminal of the power supply.
Cathode (K): Connected to the load or circuitry requiring a stable reference voltage.
Reference (R): Provides the stable reference voltage output.

Functional Features

Adjustable Output Voltage: The TLV431ALPREG allows users to program the desired output voltage by connecting external resistors.
Low Quiescent Current: With a typical quiescent current of only 60µA, the TLV431ALPREG minimizes power consumption.
High Accuracy and Stability: The device offers excellent initial accuracy and temperature stability, ensuring precise voltage regulation.
Wide Operating Range: The TLV431ALPREG can operate within a wide temperature range, making it suitable for various applications.

Advantages and Disadvantages

Advantages: - Precise voltage regulation - Low power consumption - Wide operating temperature range - Easy to use and integrate into circuits

Disadvantages: - Limited sink current capability (maximum 100mA) - Requires external resistors for adjustable output voltage

Working Principles

The TLV431ALPREG operates as a shunt regulator. It compares the reference voltage at the cathode pin with an internal voltage reference. By adjusting the current flowing through the device, it maintains a stable output voltage regardless of load variations.

Detailed Application Field Plans

The TLV431ALPREG finds applications in various fields, including:

Power Supply Regulation: It ensures stable voltage levels in power supply circuits, preventing damage to sensitive components.
Battery Management Systems: The TLV431ALPREG helps maintain accurate voltage levels in battery charging and monitoring systems.
Audio Amplifiers: It provides a stable reference voltage for biasing and amplification stages in audio amplifier circuits.
Industrial Control Systems: The device is used in control systems to regulate voltages for sensors, actuators, and other critical components.

Detailed and Complete Alternative Models

TL431ACP: Similar to TLV431ALPREG, but available in a different package (TO-92).
LM4040: Precision shunt voltage reference with adjustable output voltage and low quiescent current.
REF3030: High-precision voltage reference with low temperature drift and excellent long-term stability.

These alternative models offer similar functionality and can be considered as substitutes for the TLV431ALPREG depending on specific requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací TLV431ALPREG v technických řešeních

Sure! Here are 10 common questions and answers related to the application of TLV431ALPREG in technical solutions:

Q: What is TLV431ALPREG? A: TLV431ALPREG is a precision adjustable shunt voltage reference that can be used as a replacement for Zener diodes in many applications.
Q: What is the purpose of TLV431ALPREG? A: TLV431ALPREG is primarily used to provide a stable voltage reference for various applications, such as voltage regulation, current limiting, and voltage monitoring.
Q: How does TLV431ALPREG work? A: TLV431ALPREG works by comparing the input voltage with an internal reference voltage and adjusting its output voltage accordingly to maintain a constant voltage difference between the two.
Q: What is the voltage range of TLV431ALPREG? A: The voltage range of TLV431ALPREG is typically from 1.24V to 16V, which can be adjusted using external resistors.
Q: Can TLV431ALPREG handle high currents? A: TLV431ALPREG is designed to handle low to moderate currents, typically up to 100mA. For higher currents, an external transistor can be used.
Q: Is TLV431ALPREG suitable for battery-powered applications? A: Yes, TLV431ALPREG is well-suited for battery-powered applications due to its low quiescent current and wide operating voltage range.
Q: Can TLV431ALPREG be used for voltage regulation in power supplies? A: Yes, TLV431ALPREG can be used as a voltage regulator in power supplies to maintain a stable output voltage.
Q: What are the typical applications of TLV431ALPREG? A: TLV431ALPREG is commonly used in battery chargers, power supplies, voltage references, current limiters, and voltage monitors.
Q: Does TLV431ALPREG require external components for operation? A: Yes, TLV431ALPREG requires external resistors to set the desired output voltage and a bypass capacitor for stability.
Q: Is TLV431ALPREG available in different package options? A: Yes, TLV431ALPREG is available in various package options, such as SOT-23, SC-70, and TO-92, to suit different application requirements.

Please note that these answers are general and may vary depending on specific datasheet specifications and application considerations.