MAX691AEWE+ - English Editing Encyclopedia Entry

Product Overview

Category

MAX691AEWE+ belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for voltage monitoring and reset functions.

Characteristics

• Voltage monitoring: MAX691AEWE+ provides accurate monitoring of supply voltages.
• Reset function: It generates a reset signal when the monitored voltage falls below a specified threshold.
• Low power consumption: This IC operates with low power consumption, making it suitable for battery-powered devices.

Package

MAX691AEWE+ is available in a small-sized 16-pin wide SOIC package.

Essence

The essence of MAX691AEWE+ lies in its ability to ensure reliable operation of electronic devices by monitoring the supply voltage and generating a reset signal when necessary.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Reset Threshold Accuracy: ±1.5%
• Reset Timeout Period: Adjustable from 1ms to 640ms

Pin Configuration

The detailed pin configuration of MAX691AEWE+ is as follows:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VCC | Positive supply voltage input | | 2 | GND | Ground reference | | 3 | RESET | Active-low reset output | | 4 | MR | Manual reset input | | 5 | THRES | Threshold voltage input | | 6-9 | NC | No connection | | 10 | CAP | External capacitor connection | | 11-14 | NC | No connection | | 15 | RESET | Active-low reset output | | 16 | VCC | Positive supply voltage input |

Functional Features

1. Voltage Monitoring: MAX691AEWE+ continuously monitors the supply voltage to ensure it remains within the desired range.
2. Reset Generation: When the monitored voltage falls below the threshold, this IC generates an active-low reset signal.
3. Manual Reset: The manual reset input (MR) allows for a forced reset when required.
4. Adjustable Timeout Period: The reset timeout period can be adjusted according to the application's requirements.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring ensures reliable operation of electronic devices.
• Low power consumption makes it suitable for battery-powered applications.
• Adjustable reset timeout period provides flexibility in different scenarios.

Disadvantages

• Limited number of pins may restrict the integration of additional features.
• Not suitable for high-voltage applications beyond the specified range.

Working Principles

MAX691AEWE+ operates by continuously monitoring the supply voltage using the THRES pin. When the voltage falls below the threshold, the RESET pin is activated, generating an active-low reset signal. The reset timeout period can be adjusted using external components. Additionally, the MR pin allows for manual reset control.

Detailed Application Field Plans

MAX691AEWE+ finds applications in various electronic devices that require reliable voltage monitoring and reset functionality. Some specific application fields include:

1. Microcontrollers: Ensures proper initialization and reliable operation of microcontroller-based systems.
2. Embedded Systems: Provides voltage monitoring and reset capabilities for embedded systems, preventing erratic behavior due to power fluctuations.
3. Industrial Control Systems: Enables safe and controlled shutdown or restart of industrial control systems during power interruptions.
4. Automotive Electronics: Ensures stable operation of automotive electronics by monitoring the supply voltage and initiating necessary resets.

Detailed and Complete Alternative Models

1. MAX691A: Similar to MAX691AEWE+, but available in a different package (e.g., DIP).
2. MAX690: Offers similar voltage monitoring and reset functionality, with additional features such as watchdog timer and power-fail detection.

Note: This is not an exhaustive list, and there may be other alternative models available from different manufacturers.

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