MAX708REUA+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor
• Characteristics: Low-power, Precision, Reset Output
• Package: 8-pin µMAX®
• Essence: Monitors the voltage level and provides a reset output signal
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Reset Threshold Voltage Options: 2.63V, 3.08V, 4.38V, 4.63V
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 1µA (typical)

Pin Configuration

The MAX708REUA+T has the following pin configuration:

1. GND (Ground)
2. MR (Manual Reset)
3. RESET (Reset Output)
4. VCC (Supply Voltage)
5. TH (Threshold Voltage)
6. CT (Capacitor)
7. CT (Capacitor)
8. NC (No Connection)

Functional Features

• Monitors the supply voltage and generates a reset signal when it falls below the threshold voltage.
• Provides a manual reset input for immediate system reset.
• Offers a precision voltage reference for accurate monitoring.
• Low quiescent current ensures minimal power consumption.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Multiple reset threshold voltage options provide flexibility in different applications. - Low-power operation prolongs battery life in portable devices. - Small package size saves board space.

Disadvantages: - Limited number of reset timeout period options. - No built-in hysteresis feature for noise immunity.

Working Principles

The MAX708REUA+T operates by continuously monitoring the supply voltage using an internal voltage reference. When the voltage falls below the threshold voltage set by the TH pin, the reset output is activated. The reset signal remains active until the supply voltage rises above the threshold voltage or a manual reset is triggered.

Detailed Application Field Plans

The MAX708REUA+T finds applications in various fields, including:

1. Microcontrollers: Provides a reliable reset signal to ensure proper initialization of microcontroller-based systems.
2. Embedded Systems: Monitors power supply integrity and initiates system reset if necessary.
3. Battery-Powered Devices: Prevents erratic behavior caused by low battery voltage and ensures safe operation.
4. Industrial Control Systems: Ensures stable operation by resetting the system in case of power supply fluctuations.
5. Automotive Electronics: Protects sensitive electronic components from voltage drops and disturbances.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MAX708REUA+T are:

1. MAX809REUR+: 4-pin SOT-23 package, adjustable reset threshold voltage.
2. MAX706TESA+: 8-pin SOIC package, watchdog timer function.
3. MAX811TEUS+: 6-pin SOT-23 package, push-pull reset output.

These alternatives can be considered based on specific requirements and design constraints.

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