Maxim Integrated
La imagen puede ser una representación.
Consulte las especificaciones para obtener detalles del producto.
MAX643AESA+T
Ver Detalle Hojas de datos

MAX643AESA+T

Product Overview

Category

The MAX643AESA+T belongs to the category of voltage monitoring and reset circuits.

Use

It is used for monitoring power supply voltages in microprocessor systems and other digital systems.

Characteristics

  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Voltage monitoring and reset circuit
  • Packaging/Quantity: Tape & Reel (3000 units per reel)

Specifications

  • Operating Voltage: 4.5V to 5.5V
  • Reset Threshold Voltage: 4.65V
  • Reset Timeout Period: 140ms
  • Quiescent Current: 25µA
  • Temperature Range: -40°C to +85°C

Detailed Pin Configuration

  1. GND
  2. RESET
  3. MR
  4. VCC

Functional Features

  • Monitors system power supply voltage
  • Generates a reset signal when the voltage drops below a preset threshold
  • Adjustable reset timeout period
  • Low quiescent current

Advantages

  • Wide operating voltage range
  • Adjustable reset timeout period
  • Low power consumption

Disadvantages

  • Limited temperature range compared to some alternatives
  • Only available in SOIC package

Working Principles

The MAX643AESA+T monitors the input voltage and compares it to the preset threshold voltage. When the input voltage falls below the threshold, the device generates a reset signal, which remains active for the duration set by the reset timeout period.

Detailed Application Field Plans

The MAX643AESA+T is commonly used in microprocessor-based systems, embedded controllers, and other digital systems where reliable power supply monitoring is essential. It ensures that the system resets when the power supply voltage falls out of the acceptable range, preventing erratic behavior or data corruption.

Detailed and Complete Alternative Models

  1. MAX809 series
  2. ADM803 series
  3. MCP809 series

These alternative models offer similar functionality and are available in different packages and temperature ranges, providing flexibility for various application requirements.

In conclusion, the MAX643AESA+T is a versatile voltage monitoring and reset circuit suitable for a wide range of digital systems, offering adjustable features and low power consumption. While it has certain limitations, such as temperature range and package options, there are alternative models available to address specific application needs.

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de MAX643AESA+T en soluciones técnicas

  1. What is the MAX643AESA+T?

    • The MAX643AESA+T is a precision, low-power voltage reference with a wide input voltage range and low temperature coefficient.

  2. What are the typical applications of the MAX643AESA+T?

    • Typical applications include portable instruments, battery-powered equipment, and precision data acquisition systems.

  3. What is the input voltage range of the MAX643AESA+T?

    • The input voltage range is typically 2.5V to 12V.

  4. What is the output voltage accuracy of the MAX643AESA+T?

    • The output voltage accuracy is typically ±0.5%.

  5. What is the temperature coefficient of the MAX643AESA+T?

    • The temperature coefficient is typically 15ppm/°C.

  6. What is the quiescent current consumption of the MAX643AESA+T?

    • The quiescent current consumption is typically 50µA.

  7. What is the package type of the MAX643AESA+T?

    • The MAX643AESA+T is available in an 8-pin SOIC package.

  8. Can the MAX643AESA+T be used in automotive applications?

    • Yes, the MAX643AESA+T is suitable for automotive applications due to its wide input voltage range and low power consumption.

  9. Does the MAX643AESA+T have built-in overvoltage protection?

    • Yes, the MAX643AESA+T features built-in overvoltage protection.

  10. Is the MAX643AESA+T RoHS compliant?

    • Yes, the MAX643AESA+T is RoHS compliant, making it suitable for use in environmentally sensitive applications.