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MAX819MESA+T
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MAX819MESA+T

Product Overview

Category

MAX819MESA+T belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for power management and control.

Characteristics

  • Package: The MAX819MESA+T is available in a small surface-mount SO-8 package.
  • Essence: It is a voltage supervisor circuit that monitors the power supply voltage and provides reset signals to the microcontroller or other digital systems.
  • Packaging/Quantity: The MAX819MESA+T is typically sold in reels, with 2500 units per reel.

Specifications

The specifications of MAX819MESA+T include:

  • Supply Voltage Range: 1.2V to 5.5V
  • Reset Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 5.0V
  • Reset Timeout Period: Adjustable from 1ms to 640ms
  • Operating Temperature Range: -40°C to +85°C
  • Quiescent Current: 7µA (typical)

Detailed Pin Configuration

The MAX819MESA+T has the following pin configuration:

  1. GND: Ground connection
  2. RESET: Active-low reset output
  3. MR: Manual reset input
  4. VCC: Positive power supply voltage
  5. TH: Threshold voltage selection input
  6. CT: Capacitor connection for reset timeout period adjustment
  7. NC: No connection
  8. NC: No connection

Functional Features

The MAX819MESA+T offers the following functional features:

  • Voltage Monitoring: Monitors the power supply voltage and generates a reset signal when it falls below the threshold voltage.
  • Adjustable Reset Timeout: Allows the user to set the duration for which the reset signal remains active after the power supply voltage rises above the threshold voltage.
  • Manual Reset: Provides an input for manual reset, allowing the user to override the reset signal generated by the voltage monitoring circuit.

Advantages and Disadvantages

Advantages of using MAX819MESA+T include:

  • Reliable Power Monitoring: Ensures proper functioning of digital systems by providing accurate power supply voltage monitoring.
  • Adjustable Reset Timeout: Allows flexibility in defining the duration of the reset signal.
  • Small Package Size: The SO-8 package is compact, making it suitable for space-constrained applications.

Disadvantages of using MAX819MESA+T include:

  • Limited Voltage Threshold Options: The available threshold voltage options may not cover all possible requirements.
  • Lack of Integrated Power Regulation: This IC does not include integrated power regulation capabilities.

Working Principles

The MAX819MESA+T operates based on the following principles:

  1. Voltage Monitoring: The IC continuously monitors the power supply voltage using an internal voltage reference.
  2. Threshold Comparison: The monitored voltage is compared with the selected threshold voltage.
  3. Reset Signal Generation: When the power supply voltage falls below the threshold voltage, the IC generates an active-low reset signal.
  4. Reset Timeout: The reset signal remains active for a user-defined period after the power supply voltage rises above the threshold voltage.
  5. Manual Reset Override: The manual reset input allows the user to manually assert or deassert the reset signal, overriding the voltage monitoring circuit.

Detailed Application Field Plans

The MAX819MESA+T finds applications in various electronic devices where reliable power management and control are essential. Some specific application fields include:

  1. Microcontrollers: Ensures proper initialization and reliable operation of microcontroller-based systems.
  2. Industrial Control Systems: Provides power supervision and reset functionality in industrial automation and control systems.
  3. Consumer Electronics: Enables safe power-up and power-down sequences in devices such as televisions, audio systems, and gaming consoles.
  4. Automotive Electronics: Ensures stable operation of automotive electronic systems by monitoring the power supply voltage.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to MAX819MESA+T are:

  1. MAX809: Voltage supervisors with various threshold voltage options and package types.
  2. ADM6315: Microprocessor supervisory circuits with adjustable reset timeout periods.
  3. TPS3808: Precision voltage supervisors with integrated power-on reset and watchdog timer.

These alternative models provide options for different voltage thresholds, package sizes, and additional features based on specific application requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de MAX819MESA+T en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of MAX819MESA+T in technical solutions:

  1. Q: What is the MAX819MESA+T? A: The MAX819MESA+T is a voltage supervisor IC designed to monitor power supply voltages and provide reset signals to microcontrollers, DSPs, or other digital devices.

  2. Q: What is the operating voltage range of MAX819MESA+T? A: The operating voltage range of MAX819MESA+T is typically between 1.6V and 5.5V.

  3. Q: How many voltage inputs can MAX819MESA+T monitor? A: MAX819MESA+T can monitor up to two voltage inputs simultaneously.

  4. Q: Can MAX819MESA+T generate multiple reset signals? A: Yes, MAX819MESA+T can generate separate reset signals for each monitored voltage input.

  5. Q: What is the typical reset threshold voltage of MAX819MESA+T? A: The typical reset threshold voltage of MAX819MESA+T is 4.63V.

  6. Q: Does MAX819MESA+T have an adjustable reset threshold voltage? A: No, MAX819MESA+T has a fixed reset threshold voltage that cannot be adjusted.

  7. Q: Can MAX819MESA+T tolerate voltage transients or spikes? A: Yes, MAX819MESA+T has built-in glitch immunity and can tolerate voltage transients or spikes without generating false reset signals.

  8. Q: What is the typical quiescent current consumption of MAX819MESA+T? A: The typical quiescent current consumption of MAX819MESA+T is 15µA.

  9. Q: Does MAX819MESA+T have a watchdog timer feature? A: No, MAX819MESA+T does not have a built-in watchdog timer feature.

  10. Q: What is the package type of MAX819MESA+T? A: MAX819MESA+T is available in an 8-pin SOIC (Small Outline Integrated Circuit) package.

Please note that the answers provided here are general and may vary depending on the specific datasheet and manufacturer's specifications for MAX819MESA+T.