MAX690RCSA+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The MAX690RCSA+ is a precision, low-power, microprocessor supervisory circuit that monitors the power supply voltage of a microcontroller or other digital systems. It provides reset output during power-up, power-down, and brownout conditions.

Characteristics: - Low-power consumption - Precision voltage monitoring - Reset output during power-up, power-down, and brownout conditions

Package: SOIC (Small Outline Integrated Circuit)

Essence: The MAX690RCSA+ is an essential component for ensuring reliable operation and protection of microcontrollers and digital systems by monitoring the power supply voltage and providing reset functionality.

Packaging/Quantity: The MAX690RCSA+ is available in a standard reel packaging with 2500 units per reel.

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Reset Threshold Voltage Options: 4.63V, 4.38V, 4.00V, 3.08V, 2.93V, 2.63V, 2.32V, 2.06V
• Reset Timeout Period: 140ms (min)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX690RCSA+ has the following pin configuration:

| Pin Name | Description | |----------|-------------| | VCC | Power Supply Voltage Input | | GND | Ground | | RESET | Active-Low Reset Output | | MR | Manual Reset Input |

Functional Features

1. Precision Voltage Monitoring: The MAX690RCSA+ accurately monitors the power supply voltage and triggers a reset signal when it falls below a specified threshold.
2. Reset Output: It provides an active-low reset output signal to the microcontroller or digital system, ensuring a controlled and reliable restart during power-up, power-down, and brownout conditions.
3. Low-Power Consumption: The circuit operates with low power consumption, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring ensures reliable operation of microcontrollers and digital systems. - Reset output provides controlled restarts during power fluctuations. - Low-power consumption extends battery life in portable devices.

Disadvantages: - Limited reset timeout period may not be suitable for certain applications requiring longer reset delays. - Manual reset input (MR) may require additional external components for manual reset functionality.

Working Principles

The MAX690RCSA+ works by continuously monitoring the power supply voltage using an internal voltage reference and comparator. When the voltage falls below the specified threshold, the reset output is activated, signaling the microcontroller or digital system to reset. This ensures that the system starts up in a known state and prevents erratic behavior caused by unstable power conditions.

Detailed Application Field Plans

The MAX690RCSA+ finds applications in various fields where reliable operation and protection of microcontrollers and digital systems are crucial. Some potential application areas include: 1. Embedded systems 2. Industrial automation 3. Automotive electronics 4. Medical devices 5. Consumer electronics

Detailed and Complete Alternative Models

1. MAX811RCSA+: Similar to MAX690RCSA+, but with a different reset timeout period.
2. MAX809RCSA+: Precision voltage monitor with push-pull reset output.
3. MAX638RCSA+: Voltage monitor with adjustable reset threshold and timeout period.

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

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