TLV431BQDBZTG4

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage References

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

Package: SOT-23 (3)

Essence: The TLV431BQDBZTG4 is an adjustable precision shunt regulator that provides a highly accurate reference voltage. It is designed for use in various applications where a stable voltage reference is required.

Packaging/Quantity: The TLV431BQDBZTG4 is available in a SOT-23 package, and it is typically sold in reels of 3000 units.

Specifications

• Reference Voltage: Adjustable from 1.24V to 6V
• Operating Current Range: 450µA to 15mA
• Sink Current Capability: Up to 100mA
• Temperature Range: -40°C to +125°C
• Line Regulation: 0.2%/V (Typical)
• Load Regulation: 0.4%/mA (Typical)
• Initial Accuracy: ±1% (Max)

Detailed Pin Configuration

The TLV431BQDBZTG4 has three pins:

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

Functional Features

• Adjustable Reference Voltage: The TLV431BQDBZTG4 allows users to adjust the reference voltage according to their specific requirements.
• High Accuracy: With an initial accuracy of ±1%, this voltage reference provides precise and stable output voltage.
• Low Output Voltage Deviation Over Temperature: The TLV431BQDBZTG4 maintains a low output voltage deviation over a wide temperature range, ensuring consistent performance in various operating conditions.
• Low Dynamic Output Impedance: It exhibits a low dynamic output impedance, enabling it to handle varying load conditions effectively.
• Wide Operating Current Range: The device operates within a wide current range, making it suitable for different applications with varying power requirements.
• Sink Current Capability: It can sink current up to 100mA, allowing it to drive loads with higher current demands.
• Low Power Consumption: The TLV431BQDBZTG4 consumes minimal power, making it energy-efficient.

Advantages and Disadvantages

Advantages: - High accuracy and stability - Wide operating current range - Low power consumption - Adjustable reference voltage - Low output voltage deviation over temperature

Disadvantages: - Limited sink current capability compared to some other voltage references in the market - SOT-23 package may not be suitable for all applications requiring a voltage reference

Working Principles

The TLV431BQDBZTG4 is based on the principle of a shunt regulator. It uses a precision reference voltage to compare against an adjustable resistor network. By adjusting the resistance, the output voltage can be set to the desired value. The TLV431BQDBZTG4 then regulates the voltage across the load by sinking or sourcing current as required.

Detailed Application Field Plans

The TLV431BQDBZTG4 finds applications in various fields, including:

1. Power Supply Regulation: It can be used as a voltage reference in power supply circuits to maintain a stable output voltage.
2. Battery Management Systems: The TLV431BQDBZTG4 can be employed in battery management systems to provide a stable reference voltage for accurate battery monitoring and charging control.
3. Instrumentation: It is suitable for precision measurement instruments that require a stable voltage reference for accurate readings.
4. Audio Amplifiers: The TLV431BQDBZTG4 can be used in audio amplifiers to provide a stable bias voltage for improved audio performance.

Detailed and Complete Alternative Models

Some alternative models to the TLV431BQDBZTG4 include:

1. LM4040: A precision voltage reference with similar characteristics and adjustable output voltage.
2. LT1236: A high-precision shunt regulator with low temperature drift and excellent long-term stability.
3. REF3030: A low-power, low-dropout voltage reference with high accuracy and low output noise.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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