MAX811SEUS/GG8

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Generator
• Characteristics:
  • Low-power consumption
  • Wide supply voltage range
  • Adjustable reset threshold voltage
  • Active-low reset output
• Package: SOT-143
• Essence: The MAX811SEUS/GG8 is a voltage monitor and reset generator IC that ensures reliable system operation by monitoring the power supply voltage and generating a reset signal when the voltage falls below a specified threshold.
• Packaging/Quantity: The MAX811SEUS/GG8 is available in a SOT-143 package and is typically sold in reels of 3000 units.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 2.93V, 3.08V, 4.38V, or adjustable with external resistors
• Reset Timeout Period: 140ms (min) or adjustable with an external capacitor
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX811SEUS/GG8 has the following pin configuration:

1. GND: Ground connection
2. RESET: Active-low reset output
3. MR: Manual reset input
4. VCC: Positive power supply input

Functional Features

• Voltage Monitoring: The MAX811SEUS/GG8 continuously monitors the power supply voltage and compares it to the preset threshold voltage.
• Reset Generation: When the power supply voltage falls below the threshold voltage, the MAX811SEUS/GG8 generates an active-low reset signal.
• Manual Reset: The MR pin allows for manual resetting of the device.
• Adjustable Threshold Voltage: The threshold voltage can be set using external resistors or selected from predefined options.
• Adjustable Reset Timeout: The reset timeout period can be adjusted using an external capacitor.

Advantages and Disadvantages

Advantages: - Low-power consumption makes it suitable for battery-powered applications. - Wide supply voltage range allows for compatibility with various systems. - Adjustable threshold voltage and reset timeout provide flexibility in different applications. - Active-low reset output simplifies interfacing with other components.

Disadvantages: - Limited number of preset threshold voltage options. - Manual reset functionality may not be required in all applications.

Working Principles

The MAX811SEUS/GG8 operates by continuously monitoring the power supply voltage using an internal voltage comparator. When the voltage falls below the preset threshold, the comparator triggers the generation of an active-low reset signal. This signal remains active until the voltage rises above the threshold or a manual reset is triggered.

Detailed Application Field Plans

The MAX811SEUS/GG8 is commonly used in various electronic systems where reliable operation is critical. Some application fields include:

1. Microcontrollers and Microprocessors: Ensuring proper system initialization and preventing erratic behavior during power-up or voltage fluctuations.
2. Industrial Control Systems: Providing reliable reset signals to ensure safe operation and prevent damage to equipment.
3. Automotive Electronics: Monitoring and resetting microcontrollers and other critical components to maintain system integrity.
4. Medical Devices: Ensuring proper functioning and preventing data corruption in medical equipment.
5. Consumer Electronics: Enhancing the reliability of devices such as smartphones, tablets, and gaming consoles.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MAX811SEUS/GG8 are:

1. MAX809SEUR+: Similar voltage monitor and reset generator IC with adjustable reset threshold voltage and reset timeout period. Available in SOT-23 package.
2. MAX813LESA+: Voltage monitor and reset generator IC with fixed reset threshold voltage options. Available in SOIC-8 package.
3. MAX810SEUR+: Voltage monitor and reset generator IC with fixed reset threshold voltage options and adjustable reset timeout period. Available in SOT-23 package.

These alternative models provide options for different package types, reset threshold voltages, and reset timeout periods to suit specific application requirements.

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