MAX819MCUA+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Supply Monitor
• Characteristics: Low-power, high-accuracy, voltage monitoring
• Package: Micro µMAX®
• Essence: Monitors the power supply voltage and provides a reset signal when it falls below a certain threshold.
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Options: 2.93V, 3.08V, 3.45V, 4.63V
• Reset Timeout Options: 140ms, 560ms, 1120ms, 2240ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1µA (typical)

Detailed Pin Configuration

The MAX819MCUA+T has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | GND | Ground | | 2 | RST | Reset Output| | 3 | VCC | Supply Voltage|

Functional Features

• Monitors the power supply voltage continuously.
• Provides a reset signal when the voltage falls below the specified threshold.
• Adjustable reset threshold and timeout options.
• Low quiescent current for power efficiency.

Advantages and Disadvantages

Advantages

• Wide supply voltage range allows compatibility with various systems.
• Accurate voltage monitoring ensures reliable operation.
• Small package size saves board space.
• Low quiescent current minimizes power consumption.

Disadvantages

• Limited reset threshold and timeout options may not suit all applications.
• Operating temperature range may not be suitable for extreme environments.

Working Principles

The MAX819MCUA+T operates by continuously monitoring the power supply voltage. When the voltage falls below the specified threshold, it triggers the reset output, indicating a power failure. The reset signal remains active until the voltage rises above the threshold and the timeout period elapses.

Detailed Application Field Plans

The MAX819MCUA+T is commonly used in various applications where reliable power supply monitoring is critical. Some of the typical application fields include:

1. Embedded Systems: Ensuring proper system initialization and preventing data corruption during power fluctuations.
2. Industrial Control Systems: Monitoring power supply integrity to prevent equipment damage and ensure safe operation.
3. Automotive Electronics: Protecting sensitive electronic components from voltage drops and ensuring continuous operation.
4. Medical Devices: Safeguarding critical medical equipment by providing timely reset signals during power disruptions.

Detailed and Complete Alternative Models

1. MAX809: Similar power supply monitor IC with adjustable reset threshold and timeout options.
2. MAX811: Power supply monitor IC with manual reset input and adjustable reset threshold.
3. MAX803: Low-power microprocessor reset circuit with fixed reset threshold and timeout options.

Note: This is not an exhaustive list, and there are several other alternative models available in the market.

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