TLV431ASN1T1

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage References

Characteristics: - Adjustable Precision Shunt Regulator - Low Output Voltage Deviation Over Temperature - Wide Operating Current Range - Low Dynamic Output Impedance - Sink Current Capability up to 100mA - Programmable Output Voltage - Low Power Consumption

Package: SOT-23 (Small Outline Transistor)

Essence: The TLV431ASN1T1 is a precision shunt regulator that can be used as a voltage reference in various electronic circuits. It provides a stable and accurate output voltage, making it suitable for applications requiring precise voltage references.

Packaging/Quantity: The TLV431ASN1T1 is available in a SOT-23 package. It is typically sold in reels of 3000 units.

Specifications

• Reference Voltage: Adjustable from 1.24V to 6V
• Operating Current Range: 1μA to 100mA
• Output Voltage Deviation Over Temperature: ±0.5%
• Dynamic Output Impedance: 0.25Ω
• Sink Current Capability: Up to 100mA
• Power Consumption: 60μA (typical)

Detailed Pin Configuration

The TLV431ASN1T1 has three pins:

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

Functional Features

• Adjustable Output Voltage: The TLV431ASN1T1 allows users to adjust the output voltage within a specified range, providing flexibility in various applications.
• Stable Output Voltage: It maintains a stable output voltage even with changes in temperature and load conditions.
• Low Power Consumption: The TLV431ASN1T1 consumes minimal power, making it suitable for battery-powered devices.
• Wide Operating Current Range: It can operate within a wide range of current levels, accommodating different circuit requirements.
• Low Dynamic Output Impedance: The low output impedance ensures a stable voltage reference even with varying load conditions.

Advantages and Disadvantages

Advantages: - Precise and stable voltage reference - Adjustable output voltage - Wide operating current range - Low power consumption

Disadvantages: - Limited sink current capability (up to 100mA) - Requires external components for certain applications

Working Principles

The TLV431ASN1T1 operates as a shunt regulator. It compares the reference voltage at the Reference (R) pin with the voltage across the Anode (A) and Cathode (C) pins. By adjusting the voltage at the Reference pin, the TLV431ASN1T1 regulates the voltage between the Anode and Cathode pins, providing a stable output voltage.

Detailed Application Field Plans

The TLV431ASN1T1 is commonly used in various electronic circuits and systems, including:

1. Voltage References: Provides a stable and accurate voltage reference for analog-to-digital converters, digital-to-analog converters, and other precision measurement devices.
2. Power Supplies: Used as a voltage reference in linear regulators and switching power supplies to ensure stable and precise output voltages.
3. Battery-Powered Devices: Enables efficient power management by providing a stable voltage reference for battery charging circuits and low-power microcontrollers.
4. Audio Amplifiers: Ensures consistent biasing and voltage references in audio amplifier circuits, resulting in improved audio quality.

Detailed and Complete Alternative Models

1. TL431: Similar to TLV431ASN1T1, but available in different package options such as TO-92 and SOIC.
2. LM4040: Precision shunt voltage reference with fixed output voltages, available in various package options.
3. REF3030: Low-power, low-dropout voltage reference with adjustable output voltage, suitable for battery-powered applications.

These alternative models offer similar functionality and can be used as substitutes depending on specific requirements.

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