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TLV431ALPRMG
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TLV431ALPRMG

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 - Wide Operating Range

Package: SOT-23 (Small Outline Transistor 23)

Essence: The TLV431ALPRMG 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 TLV431ALPRMG is available in a SOT-23 package. Each package contains one unit of the IC.

Specifications

  • Reference Voltage Range: 1.24V to 6V
  • Initial Accuracy: ±0.5%
  • Temperature Coefficient: 50ppm/°C
  • Operating Temperature Range: -40°C to +85°C
  • Quiescent Current: 60µA (typical)
  • Maximum Cathode Current: 100mA

Detailed Pin Configuration

The TLV431ALPRMG has three pins:

  1. Anode (A): Connected to the positive terminal of the power supply.
  2. Cathode (K): Provides the regulated output voltage.
  3. Reference (R): Connects to an external resistor to set the desired output voltage.

Functional Features

  • Adjustable Output Voltage: The TLV431ALPRMG allows the user to program the desired output voltage by connecting an external resistor to the reference pin.
  • Low Quiescent Current: With a typical quiescent current of only 60µA, the TLV431ALPRMG minimizes power consumption in battery-powered applications.
  • High Accuracy: The initial accuracy of ±0.5% ensures precise voltage regulation.
  • Wide Operating Range: The TLV431ALPRMG can operate in a wide temperature range from -40°C to +85°C.

Advantages and Disadvantages

Advantages: - Precise voltage regulation - Low quiescent current - Wide operating temperature range - Adjustable output voltage

Disadvantages: - Limited maximum cathode current (100mA)

Working Principles

The TLV431ALPRMG operates as a shunt regulator, maintaining a stable output voltage by shunting excess current to the ground. It compares the reference voltage at the reference pin with the voltage across the external resistor connected to it. By adjusting the resistance value, the output voltage can be set to the desired level.

Detailed Application Field Plans

The TLV431ALPRMG is commonly used in various electronic applications, including:

  1. Voltage References: Provides a stable and accurate voltage reference for analog-to-digital converters, digital-to-analog converters, and other precision measurement circuits.
  2. Power Supplies: Used as a voltage reference in power supply circuits to ensure stable and regulated output voltages.
  3. Battery-Powered Devices: Ideal for low-power applications where minimizing quiescent current is crucial, such as portable devices and battery-powered sensors.

Detailed and Complete Alternative Models

  1. TL431ACP: Similar adjustable precision shunt regulator with a different package (TO-92).
  2. LM4040CIM3-2.5/NOPB: Precision micropower shunt voltage reference with fixed output voltage (2.5V) and SOT-23 package.
  3. REF3030AIDBZT: Precision voltage reference with fixed output voltage (3.0V) and SOT-23 package.

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

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi TLV431ALPRMG dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of TLV431ALPRMG in technical solutions:

  1. Q: What is TLV431ALPRMG? A: TLV431ALPRMG is a precision adjustable shunt voltage reference that can be used in various technical applications.

  2. Q: What is the purpose of TLV431ALPRMG? A: TLV431ALPRMG is designed to provide a stable and accurate voltage reference for regulating or monitoring circuits in electronic systems.

  3. Q: What is the voltage range of TLV431ALPRMG? A: The voltage range of TLV431ALPRMG is typically from 1.24V to 16V, making it suitable for a wide range of applications.

  4. Q: How does TLV431ALPRMG work? A: TLV431ALPRMG operates as a shunt regulator, maintaining a constant voltage across its terminals by adjusting the current flowing through it.

  5. Q: Can TLV431ALPRMG be used as a voltage regulator? A: Yes, TLV431ALPRMG can be used as a voltage regulator by connecting it in parallel with the load and adjusting the reference voltage accordingly.

  6. Q: Is TLV431ALPRMG suitable for low-power applications? A: Yes, TLV431ALPRMG is designed for low-power applications and has a low quiescent current, making it energy-efficient.

  7. Q: Can TLV431ALPRMG be used in automotive applications? A: Yes, TLV431ALPRMG is automotive-grade and can be used in various automotive applications where precise voltage regulation is required.

  8. Q: Does TLV431ALPRMG have built-in protection features? A: Yes, TLV431ALPRMG has built-in protection features like overcurrent and overtemperature protection to ensure safe operation.

  9. Q: Can TLV431ALPRMG be used in battery charging circuits? A: Yes, TLV431ALPRMG can be used in battery charging circuits to regulate the voltage and protect the battery from overcharging.

  10. Q: Are there any application notes or reference designs available for TLV431ALPRMG? A: Yes, Texas Instruments provides application notes and reference designs that can help in implementing TLV431ALPRMG in various technical solutions.

Please note that these answers are general and may vary depending on specific use cases and requirements.