MAX706REUA+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, microprocessor reset circuit
• Package: 8-pin µMAX® package
• Essence: Provides power-on reset and watchdog timer functions
• 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: 4.63V, 4.38V, 4.00V, 3.08V, 2.93V, 2.63V, 2.32V, 2.06V
• Watchdog Timeout Periods: 1.6s, 3.2s, 6.4s, 12.8s, 25.6s, 51.2s, 102.4s, 204.8s

Detailed Pin Configuration

1. RESET: Active-low reset output
2. GND: Ground reference
3. MR: Manual reset input
4. VCC: Positive supply voltage
5. WDI: Watchdog input
6. GND: Ground reference
7. RESET: Active-low reset output
8. NC: No connection

Functional Features

• Power-On Reset: Generates a reset signal when the supply voltage rises above the reset threshold voltage.
• Watchdog Timer: Monitors the activity of the microprocessor and generates a reset signal if it fails to toggle the watchdog input within the specified timeout period.
• Manual Reset: Allows for an external reset signal to override the internal reset generation.

Advantages

• Low-power consumption
• Wide operating voltage range
• Small package size
• Easy integration into existing designs
• Reliable reset and watchdog functions

Disadvantages

• Limited number of reset threshold voltage options
• Fixed timeout periods for the watchdog timer
• No adjustable timeout period

Working Principles

The MAX706REUA+T is a voltage supervisor IC that ensures proper operation of microprocessors by monitoring the supply voltage and microprocessor activity. It generates a reset signal when the supply voltage rises above the reset threshold voltage, providing a power-on reset function. Additionally, it includes a watchdog timer that monitors the microprocessor's activity by checking the state of the watchdog input. If the microprocessor fails to toggle this input within the specified timeout period, the MAX706REUA+T generates a reset signal to restart the system.

Detailed Application Field Plans

• Embedded Systems: Used in various embedded systems to ensure reliable operation and prevent system crashes due to power fluctuations or microprocessor failures.
• Industrial Control Systems: Employed in industrial control systems to provide a stable startup condition and monitor the health of the microprocessor.
• Automotive Electronics: Integrated into automotive electronics to guarantee proper functioning of critical systems and prevent malfunctions caused by voltage variations.

Detailed and Complete Alternative Models

1. MAX705REPA+T: Similar voltage supervisor IC with a different package (8-pin PDIP).
2. MAX707ESA+T: Voltage supervisor IC with an adjustable reset threshold voltage and watchdog timeout period.
3. MAX708SESA+T: Voltage supervisor IC with a push-pull active-low reset output and adjustable reset threshold voltage.

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