Maxim Integrated
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MAX804TCPA
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MAX804TCPA

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Supply Supervisor
  • Characteristics: Low-power, precision voltage monitor
  • Package: Thin Shrink Small Outline Package (TSSOP)
  • Essence: Ensures proper power supply sequencing and monitoring
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 1.8V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Quiescent Current: 3µA (typical)
  • Reset Threshold Options: 2.63V, 3.08V, 4.38V, or Adjustable
  • Reset Timeout Period: 140ms (typical)

Detailed Pin Configuration

The MAX804TCPA has the following pin configuration:

  1. GND: Ground
  2. RESET: Active-Low Reset Output
  3. MR: Manual Reset Input
  4. VCC: Positive Supply Voltage

Functional Features

  • Monitors the power supply voltage and asserts a reset signal when it falls below a specified threshold.
  • Provides a manual reset input for external system control.
  • Offers a wide range of reset threshold options for flexibility.
  • Low quiescent current ensures minimal power consumption.

Advantages

  • Precise voltage monitoring helps prevent system malfunctions due to unstable power supply.
  • Wide supply voltage range allows compatibility with various systems.
  • Adjustable reset threshold option provides customization based on specific requirements.
  • Low quiescent current minimizes power consumption, making it suitable for battery-powered devices.

Disadvantages

  • Limited number of reset threshold options compared to some alternative models.
  • The operating temperature range may not be suitable for extreme environments.

Working Principles

The MAX804TCPA continuously monitors the power supply voltage using an internal voltage reference and comparator. When the voltage falls below the set threshold, the reset output is asserted low, indicating a power failure. The reset signal remains active until the voltage rises above the threshold or a manual reset input is triggered.

Detailed Application Field Plans

The MAX804TCPA is commonly used in various electronic systems where proper power supply sequencing and monitoring are critical. Some specific application fields include:

  1. Microcontroller-based Systems: Ensures reliable operation by monitoring the power supply voltage and initiating a reset if necessary.
  2. Industrial Control Systems: Provides supervision of power supply integrity to prevent system failures and ensure safe operation.
  3. Battery-Powered Devices: Monitors battery voltage to prevent damage caused by undervoltage conditions and optimize battery life.

Detailed and Complete Alternative Models

  1. MAX803TCPA: Similar to MAX804TCPA but offers additional reset timeout options.
  2. MAX809TCPA: Low-power voltage monitor with a push-pull reset output.
  3. MAX811TCPA: Precision voltage monitor with adjustable reset threshold and watchdog timer functionality.

These alternative models provide similar features and can be considered based on specific requirements and preferences.

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Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät MAX804TCPA :n soveltamiseen teknisissä ratkaisuissa

Sure! Here are 10 common questions and answers related to the application of MAX804TCPA in technical solutions:

  1. Q: What is MAX804TCPA? A: MAX804TCPA is a specific model of a microprocessor supervisory circuit designed to monitor the power supply voltage of a microcontroller or other digital systems.

  2. Q: What is the purpose of using MAX804TCPA in technical solutions? A: The purpose of using MAX804TCPA is to ensure reliable operation of the microcontroller by monitoring the power supply voltage and generating a reset signal if it falls below a certain threshold.

  3. Q: How does MAX804TCPA work? A: MAX804TCPA continuously monitors the power supply voltage and compares it to a preset threshold. If the voltage drops below the threshold, it generates a reset signal to restart the microcontroller.

  4. Q: Can MAX804TCPA be used with different microcontrollers? A: Yes, MAX804TCPA can be used with various microcontrollers as long as their power supply voltage requirements are within the operating range of the MAX804TCPA.

  5. Q: What is the operating voltage range of MAX804TCPA? A: The operating voltage range of MAX804TCPA is typically between 1.6V and 5.5V.

  6. Q: Does MAX804TCPA require any external components for operation? A: No, MAX804TCPA is a standalone device and does not require any external components for its basic operation.

  7. Q: Can MAX804TCPA be used in battery-powered applications? A: Yes, MAX804TCPA can be used in battery-powered applications as it has low quiescent current consumption, making it suitable for power-sensitive designs.

  8. Q: Is MAX804TCPA capable of providing a power-on reset signal? A: Yes, MAX804TCPA provides a power-on reset signal when the power supply voltage rises above the threshold level, ensuring a controlled startup of the microcontroller.

  9. Q: Can MAX804TCPA be used in automotive applications? A: Yes, MAX804TCPA is designed to meet automotive industry standards and can be used in automotive applications where reliable power supply monitoring is required.

  10. Q: Are there any specific precautions to consider when using MAX804TCPA? A: It is important to ensure that the power supply voltage does not exceed the maximum operating voltage specified for MAX804TCPA. Additionally, proper decoupling capacitors should be used near the device to minimize noise and ensure stable operation.