Texas Instruments
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LM431ACM
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LM431ACM

Product Overview

Category: Integrated Circuit
Use: Voltage Reference
Characteristics: Adjustable, Precision, Low Dropout
Package: SOIC-8
Essence: Shunt Regulator
Packaging/Quantity: Tape & Reel / 2500 units

Specifications

  • Reference Voltage: 2.495V to 36V
  • Operating Current: 1mA to 100mA
  • Temperature Range: -40°C to 85°C
  • Line Regulation: 0.2%
  • Load Regulation: 0.4%

Detailed Pin Configuration

  1. Cathode
  2. Anode
  3. Adjust
  4. N/C
  5. N/C
  6. N/C
  7. N/C
  8. Vref

Functional Features

  • Adjustable Output
  • Low Dynamic Impedance
  • Wide Operating Voltage Range
  • High Accuracy

Advantages and Disadvantages

Advantages: - Precise Voltage Reference - Low Power Consumption - Wide Temperature Range Operation

Disadvantages: - Limited Current Sourcing Capability - Sensitivity to Noise

Working Principles

The LM431ACM operates as a shunt regulator, maintaining a stable voltage across its terminals by shunting excess current to ground. It compares the reference voltage with an external voltage divider network to regulate the output.

Detailed Application Field Plans

  1. Precision Voltage Regulation
  2. Battery Charging Circuits
  3. Switching Power Supplies
  4. Audio Amplifiers
  5. Instrumentation Systems

Detailed and Complete Alternative Models

  1. TL431ACP
  2. LM4040AIM3-2.0
  3. LT1461ACS8-3.3

LM431ACM is a versatile integrated circuit belonging to the voltage reference category. Its adjustable nature, precision, and low dropout characteristics make it suitable for various applications. With a detailed pin configuration and functional features, it offers advantages such as precise voltage reference and low power consumption. However, it has limitations in current sourcing capability and sensitivity to noise. The working principle involves shunt regulation to maintain stable voltage output. Its application field plans include precision voltage regulation, battery charging circuits, and instrumentation systems. Additionally, alternative models like TL431ACP, LM4040AIM3-2.0, and LT1461ACS8-3.3 provide similar functionalities for diverse design requirements.

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LM431ACM v technických řešeních

Sure, here are 10 common questions and answers related to the application of LM431ACM:

  1. What is LM431ACM?

    • LM431ACM is a programmable shunt voltage reference that can be used in a wide range of applications such as voltage regulation, precision current limiting, and overvoltage protection.

  2. What is the operating voltage range of LM431ACM?

    • The operating voltage range of LM431ACM is typically from 2.5V to 36V.

  3. How does LM431ACM work as a voltage reference?

    • LM431ACM compares the input voltage with an internal reference voltage and adjusts its output to maintain a constant voltage level.

  4. Can LM431ACM be used for precision current limiting?

    • Yes, LM431ACM can be used to set precise current limits in various applications by controlling the voltage across a series resistor.

  5. What are the typical applications of LM431ACM?

    • LM431ACM is commonly used in switch-mode power supplies, battery chargers, LED drivers, and precision voltage regulators.

  6. How does LM431ACM provide overvoltage protection?

    • LM431ACM can be configured to monitor the input voltage and trigger a shutdown or protection mechanism when the voltage exceeds a certain threshold.

  7. What are the key features of LM431ACM?

    • Some key features of LM431ACM include low dynamic impedance, wide operating temperature range, and adjustable output voltage.

  8. Can LM431ACM be used in automotive applications?

    • Yes, LM431ACM is suitable for automotive applications due to its wide operating voltage range and robust design.

  9. How can LM431ACM be programmed for specific voltage levels?

    • LM431ACM can be programmed using external resistors to set the desired output voltage level.

  10. What are the advantages of using LM431ACM in technical solutions?

    • The advantages of using LM431ACM include its versatility, accuracy, and reliability in providing precise voltage references and control in various electronic circuits.

I hope these questions and answers help you understand the application of LM431ACM better! Let me know if you need further assistance.