MAX811MEUS+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor with Manual Reset
• Characteristics: Low-power, precision voltage monitoring, manual reset input, small package size
• Package: SOT-143-4
• Essence: The MAX811MEUS+T is a voltage monitor IC designed to monitor the power supply voltage of electronic systems and provide a manual reset input.
• Packaging/Quantity: Available in tape and reel packaging, with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 6.0V
• Threshold Voltage Options: 2.93V, 3.08V, 3.63V, 4.38V, 4.63V, 4.88V, 5.13V, 5.38V
• Manual Reset Input: Active-low push-pull or open-drain output options
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX811MEUS+T has a 4-pin SOT-143 package with the following pin configuration:

1. VCC: Power Supply Voltage Input
2. GND: Ground Connection
3. MR: Manual Reset Input
4. RESET: Reset Output

Functional Features

• Monitors the power supply voltage and asserts the reset output when the voltage drops below the threshold level.
• Provides a manual reset input that allows the system to be reset manually.
• Offers adjustable reset timeout period for flexibility in different applications.
• Low-power consumption makes it suitable for battery-powered devices.
• Small package size enables space-constrained designs.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring ensures reliable system operation. - Manual reset input allows for manual control over system reset. - Adjustable reset timeout period offers flexibility in different applications. - Low-power consumption extends battery life. - Small package size enables compact designs.

Disadvantages: - Limited threshold voltage options may not cover all voltage requirements. - SOT-143 package may be challenging to solder for inexperienced users.

Working Principles

The MAX811MEUS+T monitors the power supply voltage using an internal voltage reference and comparator. When the voltage drops below the threshold level, the reset output is asserted, indicating a low-voltage condition. The manual reset input can be used to force a reset regardless of the monitored voltage level. The reset timeout period can be adjusted to meet specific application requirements.

Detailed Application Field Plans

The MAX811MEUS+T is commonly used in various electronic systems where voltage monitoring and manual reset functionality are required. Some typical application fields include:

1. Microcontroller-based Systems: Ensures proper system initialization by monitoring the power supply voltage and providing a manual reset option.
2. Industrial Control Systems: Monitors the supply voltage to prevent malfunctions or data corruption in critical industrial control equipment.
3. Automotive Electronics: Protects sensitive automotive electronics from voltage fluctuations and provides a manual reset option for troubleshooting purposes.
4. Battery-powered Devices: Extends battery life by efficiently monitoring the power supply voltage and allowing manual reset control.

Detailed and Complete Alternative Models

1. MAX809: Similar voltage monitor IC with fixed threshold voltage options and different package options.
2. MAX813: Voltage monitor IC with adjustable threshold voltage options and additional features like watchdog timer and power-fail detection.
3. MAX812: Voltage monitor IC with fixed threshold voltage options and open-drain reset output.

These alternative models offer similar functionality to the MAX811MEUS+T but may have different specifications, package options, or additional features to suit specific application requirements.

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