MAX631AESA+ - English Editing Encyclopedia Entry

Product Overview

Category

MAX631AESA+ belongs to the category of electronic components.

Use

The MAX631AESA+ is primarily used as a voltage monitor and reset circuit for microprocessors and other digital systems.

Characteristics

• Voltage monitoring: The MAX631AESA+ monitors the power supply voltage and provides a reset signal when the voltage falls below a certain threshold.
• Precision: It offers high accuracy in voltage monitoring, ensuring reliable operation of the system.
• Low power consumption: The device consumes minimal power, making it suitable for battery-powered applications.
• Small package size: The MAX631AESA+ comes in a small surface-mount package, allowing for space-efficient designs.
• Wide operating temperature range: It can operate reliably across a wide temperature range, making it suitable for various environments.

Package and Quantity

The MAX631AESA+ is available in a small 8-pin SOIC (Small Outline Integrated Circuit) package. It is typically sold in reels containing a quantity of 250 units.

Specifications

• Supply voltage range: 1.2V to 5.5V
• Reset threshold voltage options: 4.63V, 4.38V, 4.00V, 3.08V, or adjustable
• Reset timeout period: 140ms (min)
• Quiescent current: 10µA (typ)
• Operating temperature range: -40°C to +85°C

Pin Configuration

The MAX631AESA+ has the following pin configuration:

```

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| | --| RESET |-- --| GND |-- --| MR |-- --| VCC |-- --| RESET OUT |-- --| GND |-- --| RESET IN |-- |___________| ```

Functional Features

1. Voltage monitoring: The MAX631AESA+ continuously monitors the power supply voltage.
2. Reset signal generation: When the voltage falls below the specified threshold, the device generates a reset signal.
3. Adjustable threshold: The reset threshold voltage can be set to one of the predefined values or adjusted using an external resistor divider network.
4. Power-on reset delay: The device ensures a stable reset signal during power-up by delaying the reset output for a specific period.
5. Manual reset input: The MAX631AESA+ provides a manual reset input (MR) for immediate system reset.

Advantages and Disadvantages

Advantages

• High accuracy in voltage monitoring ensures reliable system operation.
• Low power consumption makes it suitable for battery-powered applications.
• Small package size allows for space-efficient designs.
• Wide operating temperature range enables usage in various environments.

Disadvantages

• Limited number of predefined reset threshold voltage options.
• Lack of integrated watchdog timer functionality.

Working Principles

The MAX631AESA+ operates by continuously monitoring the power supply voltage. When the voltage drops below the specified threshold, the device generates a reset signal. This signal remains active until the voltage rises above the threshold and a timeout period elapses. The reset output is delayed during power-up to ensure a stable reset signal. Additionally, the manual reset input allows for immediate system reset when triggered.

Application Field Plans

The MAX631AESA+ finds application in various fields, including: 1. Microprocessor-based systems 2. Digital control systems 3. Embedded systems 4. Industrial automation 5. Consumer electronics

Alternative Models

Several alternative models with similar functionalities are available in the market. Some notable alternatives to the MAX631AESA+ include: - MAX638BESA+: Offers adjustable reset threshold voltage and integrated watchdog timer. - MAX809SEUR+: Provides fixed reset threshold voltage options and low power consumption. - MAX811SEUS+: Features a manual reset input and small package size.

These alternative models can be considered based on specific application requirements and desired features.

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