MAX807MEWE+ - English Editing Encyclopedia Entry

Product Overview

Category

MAX807MEWE+ belongs to the category of electronic components.

Use

It is commonly used in electronic circuits for voltage monitoring and reset functions.

Characteristics

• Voltage monitoring: MAX807MEWE+ monitors the voltage level and provides a reset signal when it falls below a certain threshold.
• Reset function: It ensures that the microcontroller or other digital circuitry starts in a known state after power-up or brownout conditions.
• Package: The MAX807MEWE+ comes in a small surface-mount package.
• Essence: This component plays a crucial role in maintaining the stability and reliability of electronic systems.
• Packaging/Quantity: It is typically sold in reels or tubes, with varying quantities depending on the supplier.

Specifications

The specifications of MAX807MEWE+ are as follows:

• Supply Voltage Range: 1.0V to 5.5V
• Threshold Voltage Options: 2.63V, 2.93V, 3.08V, 4.38V, 4.63V, 4.88V (selectable)
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low Push-Pull
• Quiescent Current: 10µA (typical)

Detailed Pin Configuration

The MAX807MEWE+ has the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. RESET#: Active-low reset output
4. MR#: Manual reset input

Functional Features

The functional features of MAX807MEWE+ include:

• Accurate voltage monitoring: It accurately monitors the supply voltage and triggers a reset signal when it falls below the set threshold.
• Adjustable threshold voltage: The threshold voltage can be selected from multiple options to suit different system requirements.
• Manual reset capability: It provides a manual reset input (MR#) for external control of the reset function.
• Low quiescent current: The component consumes minimal power during operation, ensuring energy efficiency.

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring and reset functionality
• Adjustable threshold voltage for flexibility
• Small package size for space-constrained designs
• Low power consumption for energy efficiency

Disadvantages

• Limited threshold voltage options may not cover all specific requirements
• Surface-mount package may require specialized assembly techniques

Working Principles

The MAX807MEWE+ works based on a voltage comparator circuit. It continuously compares the supply voltage with the set threshold voltage. When the supply voltage drops below the threshold, the reset output is activated, indicating a low-voltage condition. This ensures that the connected microcontroller or digital circuitry starts in a known state.

Detailed Application Field Plans

The MAX807MEWE+ finds applications in various electronic systems, including:

1. Microcontroller-based systems: It ensures reliable startup and operation of microcontrollers by providing a reset signal during power-up and brownout conditions.
2. Industrial automation: It plays a vital role in maintaining the stability of control systems, preventing erratic behavior due to voltage fluctuations.
3. Power management: It assists in managing power supply integrity by monitoring voltage levels and triggering appropriate actions.
4. Automotive electronics: It helps maintain the stability of automotive electronic systems, ensuring safe and reliable operation.

Detailed and Complete Alternative Models

Some alternative models to MAX807MEWE+ include:

1. MAX809: Similar voltage monitoring and reset IC with adjustable threshold voltage options.
2. ADM708: Voltage monitor and reset IC with additional features like watchdog timer and power-fail detection.
3. MCP101: Low-power voltage monitor and reset IC with fixed threshold voltage options.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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