MAX691CWE+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: The MAX691CWE+ is a versatile integrated circuit primarily used for voltage monitoring and reset generation in electronic systems. It ensures reliable system operation by monitoring the power supply voltage and generating a reset signal when the voltage falls below a specified threshold.

Characteristics: - Voltage monitoring and reset generation - Wide operating voltage range - Low power consumption - Small form factor - High accuracy - Easy to integrate into existing systems

Package: The MAX691CWE+ is available in a small outline, 16-pin wide SOIC (Small Outline Integrated Circuit) package.

Essence: The essence of the MAX691CWE+ lies in its ability to monitor the power supply voltage and generate a reset signal, ensuring proper functioning of electronic systems.

Packaging/Quantity: The MAX691CWE+ is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

The key specifications of the MAX691CWE+ are as follows:

• Operating Voltage Range: 1.2V to 5.5V
• Reset Threshold Voltage Accuracy: ±1.5%
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Quiescent Current: 15µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX691CWE+ features a 16-pin SOIC package with the following pin configuration:

1. VCC - Power Supply Input
2. GND - Ground
3. RESET - Active-Low Reset Output
4. MR - Manual Reset Input
5. CAP - Capacitor Connection for Reset Timeout
6. GND - Ground
7. GND - Ground
8. GND - Ground
9. GND - Ground
10. GND - Ground
11. GND - Ground
12. GND - Ground
13. GND - Ground
14. GND - Ground
15. GND - Ground
16. VCC - Power Supply Input

Functional Features

The MAX691CWE+ offers the following functional features:

1. Voltage Monitoring: Monitors the power supply voltage and compares it with a preset threshold.
2. Reset Generation: Generates an active-low reset signal when the power supply voltage falls below the threshold.
3. Adjustable Timeout Period: Allows the user to set the duration for which the reset signal remains active after the voltage rises above the threshold.
4. Manual Reset: Provides a manual reset input for immediate system restart.
5. Capacitor Connection: Allows the connection of an external capacitor to adjust the reset timeout period.

Advantages and Disadvantages

Advantages: - Wide operating voltage range makes it compatible with various systems. - High accuracy ensures reliable voltage monitoring. - Low power consumption minimizes energy usage. - Small form factor enables easy integration into space-constrained designs. - Adjustable reset timeout period provides flexibility in system design.

Disadvantages: - Limited number of pins may restrict the functionality in complex systems. - Lack of built-in protection features against voltage spikes or transients.

Working Principles

The MAX691CWE+ operates by continuously monitoring the power supply voltage. When the voltage falls below the preset threshold, it generates an active-low reset signal. This signal remains active for a user-defined timeout period after the voltage rises above the threshold. The manual reset input allows immediate system restart if required.

Application Field Plans

The MAX691CWE+ finds applications in various electronic systems where reliable voltage monitoring and reset generation are crucial. Some potential application fields include: - Microcontrollers and microprocessors - Embedded systems - Industrial automation - Power management systems - Communication equipment - Automotive electronics

Alternative Models

In addition to the MAX691CWE+, there are several alternative models available in the market that offer similar functionality. Some popular alternatives include: - MAX811: Offers a push-pull reset output and adjustable reset timeout period. - MAX809: Provides a fixed reset timeout period and is available in smaller package options. - MAX705: Features a watchdog timer in addition to voltage monitoring and reset generation.

These alternative models can be considered based on specific system requirements and design constraints.

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