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MAX824REXK+T
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MAX824REXK+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Monitor and Reset Circuit
  • Characteristics: Low-power, precision voltage monitoring, reset output
  • Package: 6-pin SOT23 package
  • Essence: Monitors the voltage level of a power supply and generates a reset signal when the voltage falls below a certain threshold.
  • Packaging/Quantity: Available in tape and reel packaging, with 3000 units per reel.

Specifications

  • Supply Voltage Range: 1.2V to 5.5V
  • Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 4.38V
  • Reset Timeout Period: Adjustable from 1ms to 1600ms
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX824REXK+T has the following pin configuration:

  1. GND: Ground connection
  2. MR: Manual reset input
  3. RESET: Reset output
  4. VCC: Positive power supply
  5. TH: Threshold voltage selection pin
  6. NC: No connection

Functional Features

  • Monitors the voltage level of the power supply continuously.
  • Generates a reset signal when the voltage falls below the set threshold.
  • Provides an adjustable reset timeout period for flexibility.
  • Low-power consumption for energy-efficient applications.
  • Precision voltage monitoring ensures accurate detection.

Advantages

  • Compact and space-saving SOT23 package.
  • Wide supply voltage range allows compatibility with various systems.
  • Adjustable reset timeout period suits different application requirements.
  • Low-power operation prolongs battery life in portable devices.
  • Precise voltage monitoring enhances system reliability.

Disadvantages

  • Limited threshold voltage options may not cover all voltage levels.
  • Manual reset input may require additional external components for proper functionality.
  • Not suitable for high-voltage applications due to the maximum supply voltage limitation.

Working Principles

The MAX824REXK+T operates by continuously monitoring the voltage level of the power supply connected to the VCC pin. When the voltage falls below the threshold set by the TH pin, the circuit generates a reset signal at the RESET pin. The reset timeout period can be adjusted using external components connected to the MR pin. This IC is designed to provide reliable voltage monitoring and reset functionality in various electronic systems.

Detailed Application Field Plans

The MAX824REXK+T finds applications in a wide range of electronic devices and systems, including:

  1. Microcontrollers and microprocessors
  2. Embedded systems
  3. Power management circuits
  4. Battery-powered devices
  5. Industrial control systems
  6. Automotive electronics
  7. Home automation systems
  8. Medical equipment
  9. Consumer electronics

Detailed and Complete Alternative Models

  1. MAX823REUK+: Similar voltage monitor and reset circuit with a different package (SOT23-5).
  2. MAX809REUR+: Voltage monitor and reset circuit with a fixed 2.93V threshold voltage (SOT23-3).
  3. MAX6316LUK46CY-T: Voltage monitor and reset circuit with adjustable threshold voltage and watchdog timer (SOT23-5).

These alternative models offer similar functionality and can be considered as substitutes for the MAX824REXK+T based on specific application requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de MAX824REXK+T en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of MAX824REXK+T in technical solutions:

  1. Q: What is the MAX824REXK+T? A: The MAX824REXK+T is a voltage monitor and reset IC manufactured by Maxim Integrated. It provides power supply monitoring and reset generation functions.

  2. Q: What is the operating voltage range of MAX824REXK+T? A: The operating voltage range of MAX824REXK+T is typically between 1.6V and 5.5V.

  3. Q: How does the MAX824REXK+T monitor the power supply? A: The MAX824REXK+T monitors the power supply voltage using an internal voltage reference and compares it with a user-defined threshold voltage.

  4. Q: Can I adjust the threshold voltage of MAX824REXK+T? A: Yes, the threshold voltage can be adjusted using external resistors connected to the VTH pin.

  5. Q: What happens when the power supply voltage falls below the threshold voltage? A: When the power supply voltage falls below the threshold voltage, the MAX824REXK+T asserts a reset signal to indicate a power failure or low voltage condition.

  6. Q: Does the MAX824REXK+T have a built-in delay for the reset signal? A: Yes, the MAX824REXK+T has a fixed delay of approximately 140ms to ensure stable power supply before releasing the reset signal.

  7. Q: Can I disable the reset function of MAX824REXK+T? A: Yes, the reset function can be disabled by connecting the MR (Master Reset) pin to VCC.

  8. Q: What is the maximum reset timeout period of MAX824REXK+T? A: The maximum reset timeout period is typically 140ms, but it can be extended up to 1.12s by connecting an external capacitor to the CT pin.

  9. Q: Is the MAX824REXK+T suitable for battery-powered applications? A: Yes, the low quiescent current and wide operating voltage range make it suitable for battery-powered applications.

  10. Q: What package does the MAX824REXK+T come in? A: The MAX824REXK+T is available in a small SOT23-5 package, which is compact and easy to integrate into various designs.

Please note that these answers are general and may vary depending on the specific application and requirements. It's always recommended to refer to the datasheet and application notes provided by Maxim Integrated for detailed information.