MAX808MESA+ - English Editing Encyclopedia Entry

Product Overview

Category

MAX808MESA+ belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for voltage monitoring and reset functions.

Characteristics

• Voltage monitoring and reset IC
• Low power consumption
• Small package size
• Wide operating voltage range

Package

The MAX808MESA+ is available in a small surface-mount SO-8 package.

Essence

The essence of MAX808MESA+ lies in its ability to monitor voltage levels and provide a reset signal when necessary, ensuring proper functioning of electronic devices.

Packaging/Quantity

This product is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: 2.32V, 2.63V, 3.08V, 4.38V
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX808MESA+ has a total of 8 pins arranged as follows:

```

---

| | --| VCC GND |-- Pin 1: Ground (GND) --| MR RST |-- Pin 2: Reset Output (RST) --| TH OUT |-- Pin 3: Voltage Threshold Input (TH) --| CT GND |-- Pin 4: Capacitor Terminal (CT) |___________| ```

Functional Features

• Voltage Monitoring: The MAX808MESA+ continuously monitors the input voltage and compares it with the set threshold voltage.
• Reset Signal Generation: When the input voltage falls below the threshold, the MAX808MESA+ generates a reset signal to initiate a system reset.
• Adjustable Threshold: The threshold voltage can be set using an external resistor divider network connected to the TH pin.
• Reset Timeout: The MAX808MESA+ includes a built-in timeout period to prevent false resets caused by short voltage dips.

Advantages and Disadvantages

Advantages

• Low power consumption, making it suitable for battery-powered devices.
• Wide operating voltage range allows compatibility with various systems.
• Small package size enables space-saving designs.
• Adjustable threshold voltage provides flexibility in different applications.

Disadvantages

• Limited number of available threshold voltage options.
• Lack of built-in hysteresis may lead to potential oscillations near the threshold voltage.

Working Principles

The MAX808MESA+ operates by continuously monitoring the input voltage through the TH pin. When the voltage falls below the set threshold, the RST pin is activated, generating a reset signal. This signal remains active until the voltage rises above the threshold or the reset timeout period elapses.

Detailed Application Field Plans

The MAX808MESA+ finds application in various electronic devices, including but not limited to: 1. Microcontrollers and microprocessors 2. Embedded systems 3. Power management circuits 4. Battery-powered devices 5. Industrial control systems

Detailed and Complete Alternative Models

1. MAX809MESA+: Similar to MAX808MESA+, but with fixed threshold voltage options.
2. MAX811TASA+: Voltage monitoring and reset IC with push-pull output configuration.
3. MAX803TEXR+: Ultra-low-power voltage monitor with manual reset input.

These alternative models offer similar functionality and can be considered as substitutes for the MAX808MESA+ depending on specific requirements.

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