Maxim Integrated
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MAX823REUK+T
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MAX823REUK+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Detector
  • Characteristics: Low-power, precision voltage monitoring
  • Package: SOT23-3
  • Essence: Monitors the voltage level and provides a reset signal when it falls below a specified threshold
  • Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

  • Supply Voltage Range: 1.0V to 5.5V
  • Threshold Voltage Options: 2.93V, 3.08V, 3.30V, 4.38V
  • Quiescent Current: 1µA (typical)
  • Reset Timeout Period: 140ms (typical)
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX823REUK+T is a three-pin device with the following pin configuration:

  1. GND: Ground connection
  2. RESET: Output reset signal
  3. VCC: Supply voltage input

Functional Features

  • Precision voltage monitoring: The MAX823REUK+T continuously monitors the supply voltage and generates a reset signal when it drops below the specified threshold.
  • Low-power operation: With a quiescent current of only 1µA, the device minimizes power consumption.
  • Reset timeout period: The reset signal remains active for approximately 140ms after the voltage rises above the threshold, ensuring proper system initialization.

Advantages and Disadvantages

Advantages: - Low-power consumption - Wide supply voltage range - Small package size

Disadvantages: - Limited threshold voltage options - Single-channel monitoring

Working Principles

The MAX823REUK+T operates by comparing the supply voltage with the internally set threshold voltage. When the supply voltage drops below the threshold, the reset output is activated, indicating a power failure or an out-of-range condition. The reset signal remains active for the specified timeout period after the voltage rises above the threshold.

Detailed Application Field Plans

The MAX823REUK+T is commonly used in various applications where reliable voltage monitoring is crucial. Some of the typical application fields include:

  1. Battery-Powered Devices: Ensures proper shutdown and system integrity when the battery voltage drops below a safe level.
  2. Microcontrollers and Microprocessors: Provides a reset signal during power-up and brownout conditions to ensure correct initialization.
  3. Industrial Control Systems: Monitors power supply voltages in critical control systems to prevent malfunctions and data corruption.
  4. Automotive Electronics: Protects sensitive electronic components from voltage fluctuations and ensures proper operation during start-up and transient conditions.

Detailed and Complete Alternative Models

  • MAX823LEUK+T: Similar to MAX823REUK+T but with different threshold voltage options (2.63V, 2.93V, 3.08V, 4.38V).
  • MAX823SEUK+T: Offers additional features like manual reset input and adjustable reset timeout period.
  • MAX823TEUK+T: Provides a higher supply voltage range (1.6V to 5.5V) and extended temperature range (-40°C to +125°C).

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Énumérez 10 questions et réponses courantes liées à l'application de MAX823REUK+T dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of MAX823REUK+T in technical solutions:

  1. Question: What is the MAX823REUK+T?
    Answer: The MAX823REUK+T is a microprocessor reset circuit with a manual reset input.

  2. Question: What is the purpose of the MAX823REUK+T in technical solutions?
    Answer: The MAX823REUK+T is used to monitor the power supply voltage of a microprocessor and generate a reset signal when the voltage falls below a certain threshold.

  3. Question: How does the MAX823REUK+T work?
    Answer: The MAX823REUK+T continuously monitors the power supply voltage using an internal voltage reference. When the voltage drops below the specified threshold, it asserts the reset signal to the microprocessor.

  4. Question: What is the voltage threshold for the reset signal?
    Answer: The voltage threshold for the reset signal can be set using external resistors. It can be adjusted to suit the specific requirements of the microprocessor.

  5. Question: Can the MAX823REUK+T be used with different microprocessors?
    Answer: Yes, the MAX823REUK+T can be used with a wide range of microprocessors as long as the voltage threshold and timing requirements are compatible.

  6. Question: Does the MAX823REUK+T have any additional features?
    Answer: Yes, the MAX823REUK+T has a manual reset input that allows for a manual reset of the microprocessor, independent of the power supply voltage.

  7. Question: What is the operating voltage range of the MAX823REUK+T?
    Answer: The MAX823REUK+T operates within a voltage range of 1.0V to 5.5V.

  8. Question: Can the MAX823REUK+T be used in battery-powered applications?
    Answer: Yes, the low operating voltage range of the MAX823REUK+T makes it suitable for battery-powered applications.

  9. Question: Does the MAX823REUK+T have any built-in protection features?
    Answer: Yes, the MAX823REUK+T has built-in glitch immunity to prevent false resets caused by voltage transients or noise.

  10. Question: Is the MAX823REUK+T available in a surface-mount package?
    Answer: Yes, the MAX823REUK+T is available in a SOT23-3 package, which is a common surface-mount package used in many electronic devices.

Please note that these questions and answers are based on general information about the MAX823REUK+T. It's always recommended to refer to the datasheet and consult with the manufacturer for specific application requirements.