TLV431BQDBVT

Product Overview

Category: Integrated Circuits (ICs)

Use: Voltage References

Characteristics: - Adjustable Precision Shunt Regulator - Low Output Voltage Deviation Over Temperature - High Accuracy (±1%) - Low Quiescent Current (80 µA typical) - Wide Operating Voltage Range (1.24 V to 18 V) - Low Dynamic Output Impedance - Small Package Size (SOT-23-6) - RoHS Compliant

Package: SOT-23-6

Essence: The TLV431BQDBVT is an adjustable precision shunt regulator that provides a highly accurate reference voltage. It is commonly used in various electronic circuits where a stable voltage reference is required.

Packaging/Quantity: The TLV431BQDBVT is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Reference Voltage: Adjustable from 1.24 V to 18 V
• Initial Accuracy: ±1%
• Temperature Coefficient: 50 ppm/°C
• Quiescent Current: 80 µA typical
• Operating Temperature Range: -40°C to +125°C
• Output Current: Up to 100 mA
• Dynamic Output Impedance: 0.25 Ω typical

Detailed Pin Configuration

The TLV431BQDBVT has six pins arranged as follows:

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Pin 1: Anode (A) Pin 2: Cathode (C) Pin 3: NC (No Connection) Pin 4: NC (No Connection) Pin 5: Reference (REF) Pin 6: Adjust (ADJ)

Functional Features

• Adjustable Output Voltage: The TLV431BQDBVT allows the user to adjust the output voltage within a specified range, providing flexibility in various applications.
• High Accuracy: With an initial accuracy of ±1%, the TLV431BQDBVT ensures precise voltage references.
• Low Quiescent Current: The low quiescent current of 80 µA minimizes power consumption and extends battery life in portable devices.
• Wide Operating Voltage Range: The TLV431BQDBVT can operate within a wide voltage range from 1.24 V to 18 V, making it suitable for diverse electronic systems.
• Low Dynamic Output Impedance: The device exhibits a low dynamic output impedance of 0.25 Ω, ensuring stability and reducing voltage deviations.

Advantages and Disadvantages

Advantages: - Adjustable output voltage - High accuracy - Low quiescent current - Wide operating voltage range - Small package size - RoHS compliant

Disadvantages: - Limited maximum output current (up to 100 mA)

Working Principles

The TLV431BQDBVT operates as a shunt regulator, maintaining a stable reference voltage across its terminals. It compares the voltage at the Adjust (ADJ) pin with the internal reference voltage and adjusts the current flowing through the cathode (C) and anode (A) pins accordingly. By adjusting the resistor connected to the ADJ pin, the output voltage can be set within the desired range.

Detailed Application Field Plans

The TLV431BQDBVT finds applications in various fields, including:

1. Power Supply Regulation: It is used to provide a stable voltage reference for regulating power supplies in electronic circuits.
2. Battery Management Systems: The TLV431BQDBVT is employed in battery management systems to monitor and control battery charging and discharging processes.
3. Voltage Monitoring: It is utilized in voltage monitoring circuits to detect and respond to voltage deviations.
4. Precision Instrumentation: The TLV431BQDBVT is suitable for precision instrumentation applications that require accurate voltage references.

Detailed and Complete Alternative Models

1. TL431BQDBZR: Similar to TLV431BQDBVT, but available in a different package (SOT-23-5).
2. TL431ACDBVR: Adjustable precision shunt regulator with similar characteristics, but available in a smaller package (SOT-23-3).
3. TL431AQDBZR: High-accuracy adjustable precision shunt regulator with improved initial accuracy (±0.5%).

These alternative models provide similar functionality and can be used as substitutes for the TLV431BQDBVT in various applications.

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