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MAX809HTR
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MAX809HTR

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Monitor
  • Characteristics: Low-power, Precision, Reset Output
  • Package: SOT-23-3
  • Essence: Monitors the voltage level and provides a reset signal when the voltage drops below a specified threshold.
  • Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

  • Supply Voltage Range: 1.0V to 5.5V
  • Threshold Voltage Options: 2.93V, 3.08V, 3.15V, 3.30V, 3.42V, 3.63V, 4.00V
  • Reset Timeout Options: 140ms, 560ms, 1120ms, 2240ms
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX809HTR has three pins:

  1. VCC: Power supply input pin.
  2. GND: Ground reference pin.
  3. RESET: Active-low reset output pin.

Functional Features

  • Monitors the voltage level of the power supply.
  • Generates a reset signal when the voltage drops below the specified threshold.
  • Provides a stable reset output during power-up and power-down sequences.
  • Low-power consumption for battery-powered applications.
  • Precision voltage monitoring for reliable system operation.

Advantages

  • Small package size allows for space-efficient designs.
  • Wide range of threshold voltage options for flexibility in different applications.
  • Multiple reset timeout options to suit various system requirements.
  • Low-power operation extends battery life in portable devices.
  • Reliable voltage monitoring ensures system stability.

Disadvantages

  • Limited to voltage monitoring and reset functionality only.
  • Not suitable for applications requiring complex voltage regulation.

Working Principles

The MAX809HTR operates by comparing the supply voltage with a fixed threshold voltage. When the supply voltage drops below the threshold, the reset output is activated, indicating a power failure or an out-of-range condition. The reset output remains active until the supply voltage rises above the threshold and the reset timeout period elapses.

Application Field Plans

The MAX809HTR finds applications in various fields, including:

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

Alternative Models

  • MAX803/MAX809: Similar voltage monitor ICs with different package options.
  • MAX811: Voltage monitor IC with manual reset input.
  • MAX810: Voltage monitor IC with adjustable threshold voltage.

These alternative models offer similar functionality and can be considered based on specific design requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de MAX809HTR en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of MAX809HTR in technical solutions:

  1. Q: What is the MAX809HTR? A: The MAX809HTR is a microprocessor supervisory circuit that monitors the power supply voltage of a system and generates a reset signal when the voltage falls below a predetermined threshold.

  2. Q: What is the purpose of using the MAX809HTR in a technical solution? A: The MAX809HTR ensures reliable operation of microprocessors and other digital ICs by providing a reset signal during power-up, power-down, and brownout conditions.

  3. Q: How does the MAX809HTR detect a low voltage condition? A: The MAX809HTR compares the monitored voltage with a fixed internal reference voltage. If the monitored voltage drops below the reference voltage, it triggers a reset signal.

  4. Q: Can the threshold voltage of the MAX809HTR be adjusted? A: No, the threshold voltage of the MAX809HTR is fixed at a specific value, typically around 2.93V.

  5. Q: What is the maximum operating voltage range of the MAX809HTR? A: The MAX809HTR can operate within a voltage range of 1.0V to 6.0V.

  6. Q: Does the MAX809HTR have any delay before generating a reset signal? A: Yes, the MAX809HTR has an adjustable reset timeout period, typically set to 140ms, to allow for stable power supply voltages during power-up.

  7. Q: Can the MAX809HTR be used with both active-high and active-low reset signals? A: Yes, the MAX809HTR offers options for both active-high and active-low reset outputs, depending on the specific variant chosen.

  8. Q: Is the MAX809HTR suitable for battery-powered applications? A: Yes, the MAX809HTR has a low quiescent current of typically 5µA, making it suitable for power-sensitive and battery-powered applications.

  9. Q: Can the MAX809HTR be used in automotive applications? A: Yes, the MAX809HTR is designed to meet the requirements of automotive applications and is qualified to the AEC-Q100 standard.

  10. Q: Are there any additional features or protections offered by the MAX809HTR? A: Yes, the MAX809HTR includes features like manual reset input, watchdog timer, and short-circuit protection, enhancing its versatility and reliability in various technical solutions.

Please note that the answers provided here are general and may vary based on the specific datasheet and application requirements of the MAX809HTR.