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MAX809JTRG
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MAX809JTRG

Product Overview

  • Category: Integrated Circuits (ICs)
  • Use: Voltage Supervisors
  • Characteristics: Low Power, Reset Timer, Active-Low Push-Pull Output
  • Package: SOT-23-3
  • Essence: MAX809JTRG is a voltage supervisor IC that monitors the power supply voltage of a system and asserts a reset signal when the voltage falls below a predetermined threshold.
  • Packaging/Quantity: Tape & Reel (3000 pieces 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

Detailed Pin Configuration

MAX809JTRG has three pins:

  1. GND: Ground pin
  2. RESET: Active-low push-pull output pin that asserts a reset signal when the monitored voltage drops below the threshold.
  3. VCC: Power supply input pin

Functional Features

  • Monitors the power supply voltage and provides a reset signal when the voltage falls below the threshold.
  • Active-low push-pull output ensures reliable reset signaling.
  • Low power consumption makes it suitable for battery-powered applications.
  • Built-in reset timeout period prevents false resets during power-up.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Multiple threshold voltage options provide flexibility in different applications. - Small package size enables space-saving designs. - Low power consumption extends battery life.

Disadvantages: - Limited reset timeout period may not be suitable for certain applications requiring longer timeouts. - Single-channel design limits its use in systems requiring multiple voltage supervisors.

Working Principles

MAX809JTRG operates by comparing the supply voltage with a preset threshold voltage. When the supply voltage drops below the threshold, the reset output is asserted, indicating a power failure or low voltage condition. The reset signal remains active until the supply voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

  • Battery-powered devices: MAX809JTRG ensures proper system operation by monitoring the battery voltage and initiating a reset when it falls below a safe level.
  • Microcontroller systems: It provides a reliable reset signal to microcontrollers during power-up or voltage fluctuations, preventing erratic behavior.
  • Industrial control systems: The voltage supervisor helps maintain stable operation in critical industrial control applications by detecting power supply abnormalities.

Detailed and Complete Alternative Models

  1. MAX809L: Similar functionality but with different threshold voltage options.
  2. MAX811: Voltage supervisors with additional features like manual reset input and watchdog timer.
  3. MAX803: Low-power voltage supervisors with adjustable reset timeout periods.

(Note: This list is not exhaustive and other alternative models may exist.)

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi MAX809JTRG dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of MAX809JTRG in technical solutions:

  1. Q: What is MAX809JTRG? A: MAX809JTRG is a voltage monitor and reset IC that ensures reliable system operation by monitoring the power supply voltage and asserting a reset signal when it falls below a predefined threshold.

  2. Q: What is the operating voltage range of MAX809JTRG? A: The operating voltage range of MAX809JTRG is typically between 1.0V and 5.5V.

  3. Q: How does MAX809JTRG help in preventing brownout conditions? A: MAX809JTRG has an adjustable reset threshold voltage, which can be set to a level slightly above the minimum operating voltage of the system. This helps prevent brownout conditions by asserting a reset signal when the voltage drops below the set threshold.

  4. Q: Can I use MAX809JTRG with both microcontrollers and digital logic circuits? A: Yes, MAX809JTRG can be used with both microcontrollers and digital logic circuits as long as the operating voltage requirements are within its specified range.

  5. Q: Does MAX809JTRG have any delay before asserting the reset signal? A: Yes, MAX809JTRG has a fixed reset timeout delay of typically 140ms to ensure stable power supply before releasing the reset signal.

  6. Q: Can I adjust the reset timeout delay of MAX809JTRG? A: No, the reset timeout delay of MAX809JTRG is fixed and cannot be adjusted.

  7. Q: Is MAX809JTRG available in different package options? A: Yes, MAX809JTRG is available in various package options, such as SOT23-3 and SC70-3, to suit different application requirements.

  8. Q: Can I use MAX809JTRG in battery-powered applications? A: Yes, MAX809JTRG is suitable for battery-powered applications as it has a low quiescent current of typically 1µA, which helps conserve battery life.

  9. Q: Does MAX809JTRG have any built-in hysteresis? A: Yes, MAX809JTRG has a built-in hysteresis of typically 2.5% to prevent oscillation near the threshold voltage.

  10. Q: Can I use MAX809JTRG in automotive applications? A: Yes, MAX809JTRG is qualified for automotive applications and meets the necessary standards, such as AEC-Q100 Grade 1, making it suitable for use in automotive electronics.

Please note that these answers are general and may vary depending on the specific datasheet and application requirements.