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LMV431CM5
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LMV431CM5

Product Overview

Category

LMV431CM5 belongs to the category of voltage references.

Use

It is commonly used as a precision shunt regulator in various electronic circuits.

Characteristics

  • LMV431CM5 is a low-voltage, adjustable precision shunt regulator.
  • It provides a stable reference voltage for accurate voltage regulation.
  • The device operates with a wide input voltage range and exhibits low temperature coefficient.
  • LMV431CM5 offers high accuracy and excellent line and load regulation.

Package

LMV431CM5 is available in a small SOT-23 package.

Essence

The essence of LMV431CM5 lies in its ability to provide precise voltage regulation in electronic circuits.

Packaging/Quantity

LMV431CM5 is typically sold in reels containing a quantity of 3000 units per reel.

Specifications

  • Input Voltage Range: 1.24V to 6V
  • Reference Voltage Accuracy: ±1%
  • Temperature Coefficient: 50ppm/°C
  • Output Current: Up to 100mA
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

LMV431CM5 has three pins:

  1. REF: This pin is connected to the reference voltage output.
  2. ANODE: The anode pin is connected to the cathode of an external Zener diode or voltage source.
  3. CATHODE: The cathode pin is connected to the ground or negative supply voltage.

Functional Features

  • LMV431CM5 provides a stable reference voltage that can be adjusted using external resistors.
  • It offers excellent temperature stability and low dropout voltage.
  • The device has built-in short-circuit protection and thermal shutdown features.
  • LMV431CM5 can be used as a voltage detector or error amplifier in various applications.

Advantages and Disadvantages

Advantages

  • High accuracy and excellent line and load regulation.
  • Wide input voltage range.
  • Low temperature coefficient.
  • Small package size.

Disadvantages

  • Limited output current capacity (up to 100mA).
  • Requires an external Zener diode or voltage source for operation.

Working Principles

LMV431CM5 operates based on the principle of a shunt regulator. It compares the reference voltage at the REF pin with the voltage at the ANODE pin. By adjusting the resistance connected between the ANODE and CATHODE pins, the output voltage can be precisely regulated.

Detailed Application Field Plans

LMV431CM5 finds applications in various electronic circuits, including:

  1. Voltage regulators in power supplies.
  2. Battery charging circuits.
  3. Precision measurement equipment.
  4. Audio amplifiers.
  5. Temperature sensors.
  6. LED drivers.
  7. Switching power supplies.

Detailed and Complete Alternative Models

Some alternative models to LMV431CM5 include:

  1. TL431: A widely used adjustable precision shunt regulator.
  2. LT1236: A high-precision, low-drift voltage reference.
  3. MAX6126: An ultra-low-noise, high-precision voltage reference.
  4. REF02: A precision voltage reference with low temperature drift.

These alternative models offer similar functionality and can be considered as substitutes for LMV431CM5 in different applications.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av LMV431CM5 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of LMV431CM5 in technical solutions:

  1. Q: What is LMV431CM5? A: LMV431CM5 is a precision voltage reference diode that can be used as a shunt regulator or a voltage reference in various technical applications.

  2. Q: What is the operating voltage range of LMV431CM5? A: The operating voltage range of LMV431CM5 is typically from 1.24V to 16V.

  3. Q: Can LMV431CM5 be used as an adjustable voltage reference? A: Yes, LMV431CM5 can be used as an adjustable voltage reference by connecting external resistors to set the desired output voltage.

  4. Q: What is the typical accuracy of LMV431CM5? A: The typical accuracy of LMV431CM5 is ±1%.

  5. Q: Can LMV431CM5 handle high currents? A: No, LMV431CM5 is not designed to handle high currents. It is typically used for low current applications.

  6. Q: Is LMV431CM5 suitable for battery-powered applications? A: Yes, LMV431CM5 is suitable for battery-powered applications due to its low quiescent current consumption.

  7. Q: Can LMV431CM5 operate in harsh environments? A: LMV431CM5 has a wide temperature range and can operate in harsh environments, making it suitable for industrial applications.

  8. Q: What are the typical package options available for LMV431CM5? A: LMV431CM5 is available in SOT-23 and SC-70 packages, which are commonly used in compact electronic designs.

  9. Q: Can LMV431CM5 be used in voltage monitoring applications? A: Yes, LMV431CM5 can be used for voltage monitoring applications by comparing the reference voltage with the input voltage.

  10. Q: Are there any specific precautions to consider when using LMV431CM5? A: It is important to ensure proper decoupling and thermal management when using LMV431CM5 to maintain stability and prevent overheating.

Please note that these answers are general and may vary depending on the specific application and requirements.