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MAX809JEUR+T
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MAX809JEUR+T

Product Overview

  • Category: Integrated Circuits (ICs)
  • Use: Voltage Supervisors
  • Characteristics: Low Power, Reset Output, Active-Low, Push-Pull, Open Drain, 1 Channel, SOT-23-3 Package
  • Package: SOT-23-3
  • Essence: MAX809JEUR+T is a voltage supervisor IC that monitors the power supply voltage of electronic systems and provides a reset signal when the voltage falls below a predetermined threshold.
  • Packaging/Quantity: The MAX809JEUR+T is available in tape and reel packaging with a quantity of 3000 units per reel.

Specifications

  • Supply Voltage Range: 1.0V to 5.5V
  • Threshold Voltage Options: 2.93V, 3.08V, 3.63V, 4.38V
  • Reset Timeout Period: 140ms (typical)
  • Operating Temperature Range: -40°C to +85°C
  • Output Type: Active-Low, Push-Pull or Open Drain
  • Number of Channels: 1

Detailed Pin Configuration

The MAX809JEUR+T has three pins arranged in a SOT-23-3 package:

  1. GND: Ground pin
  2. RESET: Reset output pin
  3. VCC: Supply voltage input pin

Functional Features

  • Monitors the power supply voltage and asserts a reset signal when the voltage drops below the specified threshold.
  • Provides a stable reset output during power-up, power-down, and brownout conditions.
  • Offers a choice between active-low push-pull or open-drain reset outputs.
  • Low quiescent current consumption makes it suitable for battery-powered applications.
  • Built-in glitch immunity ensures reliable operation in noisy environments.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Multiple threshold voltage options provide flexibility for different applications. - Low power consumption extends battery life in portable devices. - Glitch immunity ensures reliable performance in noisy environments.

Disadvantages: - Limited to a single channel, not suitable for applications requiring multiple voltage supervisors. - SOT-23-3 package may be challenging for manual soldering due to its small size.

Working Principles

The MAX809JEUR+T operates by comparing the supply voltage with a fixed threshold voltage. When the supply voltage falls below the threshold, the reset output is asserted, indicating a power failure or brownout condition. The reset output remains active until the supply voltage rises above the threshold and a timeout period elapses.

Detailed Application Field Plans

The MAX809JEUR+T is commonly used in various electronic systems where reliable power supply monitoring is crucial. Some application fields include:

  1. Microcontrollers: Ensures proper system initialization and prevents erratic behavior during power-up or brownout conditions.
  2. Embedded Systems: Provides a reset signal to restart the system after a power failure, ensuring stable operation.
  3. Battery-Powered Devices: Monitors the battery voltage and initiates a controlled shutdown when the voltage drops below a safe level, preventing damage to the battery or data loss.
  4. Industrial Control Systems: Protects sensitive equipment from voltage fluctuations and ensures safe operation during power disturbances.

Detailed and Complete Alternative Models

  1. MAX809SEUR+T: Similar to MAX809JEUR+T but with a different threshold voltage range (2.63V, 2.93V, 3.08V, 3.63V).
  2. MAX810LEUR+T: Voltage supervisor IC with a higher reset timeout period (210ms) and a wider supply voltage range (1.0V to 6.0V).
  3. MAX811MEUR+T: Dual-channel voltage supervisor IC with two independent reset outputs, suitable for applications requiring monitoring of multiple power supplies.

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10 domande e risposte comuni relative all'applicazione di MAX809JEUR+T nelle soluzioni tecniche

Sure! Here are 10 common questions and answers related to the application of MAX809JEUR+T in technical solutions:

  1. Q: What is the MAX809JEUR+T? A: The MAX809JEUR+T is a voltage monitor and reset IC that ensures proper power supply sequencing and monitoring in electronic systems.

  2. Q: What is the operating voltage range of MAX809JEUR+T? A: The operating voltage range of MAX809JEUR+T is typically between 1.6V and 5.5V.

  3. Q: How does MAX809JEUR+T help in power supply sequencing? A: MAX809JEUR+T provides a reset signal to the microcontroller or other digital devices, ensuring they start up in the correct sequence when multiple power supplies are involved.

  4. Q: Can I use MAX809JEUR+T with both active-high and active-low reset signals? A: Yes, MAX809JEUR+T supports both active-high and active-low reset outputs, depending on the configuration.

  5. Q: What is the typical reset threshold voltage of MAX809JEUR+T? A: The typical reset threshold voltage of MAX809JEUR+T is 2.93V.

  6. Q: Does MAX809JEUR+T have a manual reset input? A: No, MAX809JEUR+T does not have a manual reset input. It operates based on the monitored voltage levels.

  7. Q: Can I use MAX809JEUR+T in battery-powered applications? A: Yes, MAX809JEUR+T is suitable for battery-powered applications as it has low quiescent current and operates at low voltages.

  8. Q: What is the maximum supply current of MAX809JEUR+T? A: The maximum supply current of MAX809JEUR+T is typically 10µA.

  9. Q: Does MAX809JEUR+T have any built-in delay for the reset signal? A: Yes, MAX809JEUR+T has a fixed delay of approximately 140ms to ensure stable power-on reset.

  10. Q: Can I use MAX809JEUR+T in automotive applications? A: Yes, MAX809JEUR+T is suitable for automotive applications as it meets the necessary standards and has a wide operating temperature range.

Please note that these answers are based on general information about the MAX809JEUR+T. For specific details and application requirements, it is recommended to refer to the datasheet or consult the manufacturer's technical support.