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MAX691AEWE+T

MAX691AEWE+T

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Monitor and Reset Circuit
  • Characteristics: Low-power, precision voltage monitoring, reset generation
  • Package: 16-pin wide SOIC (Small Outline Integrated Circuit)
  • Essence: Provides power supply monitoring and reset generation for microcontrollers and other digital systems
  • Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

  • Supply Voltage Range: 1.2V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Reset Threshold Options: 4.63V, 4.38V, 4.00V, or adjustable
  • Reset Timeout Period: 140ms (min) or adjustable
  • Quiescent Current: 10µA (typical)

Detailed Pin Configuration

  1. VCC: Positive supply voltage input
  2. GND: Ground reference
  3. RESET: Active-low reset output
  4. MR: Manual reset input
  5. RESET OUT: Open-drain reset output
  6. GND: Ground reference
  7. RESET: Active-low reset output
  8. RESET OUT: Open-drain reset output
  9. GND: Ground reference
  10. RESET: Active-low reset output
  11. RESET OUT: Open-drain reset output
  12. GND: Ground reference
  13. RESET: Active-low reset output
  14. RESET OUT: Open-drain reset output
  15. GND: Ground reference
  16. VCC: Positive supply voltage input

Functional Features

  • Monitors the power supply voltage and generates a reset signal when the voltage falls below a specified threshold.
  • Provides a manual reset input for immediate system reset.
  • Offers an open-drain reset output for interfacing with other devices.
  • Adjustable reset threshold and timeout period for customization.
  • Low quiescent current consumption for power efficiency.

Advantages

  • Ensures reliable system operation by monitoring the power supply voltage.
  • Protects microcontrollers and digital systems from erratic behavior during power fluctuations.
  • Allows customization of reset threshold and timeout period to suit specific application requirements.
  • Provides a manual reset input for immediate system reset when needed.
  • Open-drain reset output facilitates easy interfacing with other devices.

Disadvantages

  • Limited to a maximum supply voltage of 5.5V.
  • Requires careful consideration of the reset threshold and timeout period settings to avoid false triggering or delayed resets.

Working Principles

The MAX691AEWE+T is designed to monitor the power supply voltage of a system. It compares the supply voltage against a preset threshold and generates a reset signal when the voltage falls below this threshold. The reset signal can be used to initiate a system reset or trigger other actions. The device also includes a manual reset input, allowing users to manually reset the system if required. The open-drain reset output enables easy integration with other devices.

Detailed Application Field Plans

  • Microcontroller-based systems
  • Digital systems requiring reliable power supply monitoring
  • Battery-powered devices
  • Industrial control systems
  • Automotive electronics
  • Home automation systems

Detailed and Complete Alternative Models

  1. MAX811: Voltage Monitor and Reset Circuit with adjustable reset threshold and timeout period.
  2. MAX809: Voltage Monitor and Reset Circuit with fixed reset threshold and adjustable timeout period.
  3. MAX803: Voltage Monitor and Reset Circuit with fixed reset threshold and timeout period.
  4. MAX638: Voltage Monitor and Reset Circuit with adjustable reset threshold and fixed timeout period.
  5. MAX631: Voltage Monitor and Reset Circuit with fixed reset threshold and fixed timeout period.

(Note: The above list is not exhaustive and there are several alternative models available in the market.)

This entry provides an overview of the MAX691AEWE+T, a voltage monitor and reset circuit integrated circuit. It includes basic information such as its category, use, characteristics, package, essence, and packaging/quantity details. The specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models are also discussed.

技術ソリューションにおける MAX691AEWE+T の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of MAX691AEWE+T in technical solutions:

  1. Q: What is the MAX691AEWE+T? A: The MAX691AEWE+T is a microprocessor supervisory circuit that monitors the power supply voltage of a system and provides reset signals to the microcontroller or other digital ICs.

  2. Q: What is the purpose of using the MAX691AEWE+T in a technical solution? A: The MAX691AEWE+T ensures reliable operation by monitoring the power supply voltage and generating reset signals to prevent the microcontroller from operating in an undefined state during power-up, power-down, or brownout conditions.

  3. Q: How does the MAX691AEWE+T detect power supply voltage variations? A: The MAX691AEWE+T compares the monitored voltage with a preset threshold. If the voltage drops below the threshold, it generates a reset signal to the microcontroller.

  4. Q: Can the MAX691AEWE+T be used with different power supply voltages? A: Yes, the MAX691AEWE+T can be used with a wide range of power supply voltages, typically from 1.8V to 5V.

  5. Q: Does the MAX691AEWE+T have any adjustable parameters? A: Yes, the MAX691AEWE+T allows for adjustable reset thresholds through external resistors, enabling customization for specific applications.

  6. Q: Is the MAX691AEWE+T suitable for battery-powered applications? A: Yes, the MAX691AEWE+T has low quiescent current consumption, making it suitable for battery-powered devices where power efficiency is crucial.

  7. Q: Can the MAX691AEWE+T handle multiple power supply inputs? A: Yes, the MAX691AEWE+T can monitor multiple power supply inputs simultaneously, providing reset signals if any of them fall below the threshold.

  8. Q: Does the MAX691AEWE+T have any built-in delay for generating reset signals? A: Yes, the MAX691AEWE+T has an adjustable reset timeout period to ensure stable operation during power-up and power-down sequences.

  9. Q: Can the MAX691AEWE+T be used in automotive applications? A: Yes, the MAX691AEWE+T is designed to meet automotive industry standards and can be used in automotive applications where reliable power supply monitoring is required.

  10. Q: Are there any specific precautions to consider when using the MAX691AEWE+T? A: It is important to follow the manufacturer's datasheet guidelines for proper circuit layout, decoupling capacitors, and thermal considerations to ensure optimal performance and reliability of the MAX691AEWE+T.