MAX6719AUTTWD1+T

Product Overview

• Category: Integrated Circuits
• Use: Voltage Supervisors
• Characteristics: Low-power, precision voltage monitors with manual reset input and watchdog timer
• Package: SOT23-6
• Essence: Provides accurate monitoring of system voltages to ensure proper operation and prevent damage
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Manual Reset Input Threshold: 0.8V (typical)
• Watchdog Timeout Period: 1.6s (typical)
• Quiescent Current: 3µA (typical)

Detailed Pin Configuration

The MAX6719AUTTWD1+T has the following pin configuration:

```

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| | --| VCC GND |-- Pin 1: Ground (GND) --| MR OUT |-- Pin 2: Output (OUT) --| WDI RST |-- Pin 3: Manual Reset Input (MR) |___________| ```

Functional Features

• Accurate voltage monitoring: The MAX6719AUTTWD1+T ensures that the system voltage remains within specified limits.
• Manual reset input: Allows for external control of the reset function.
• Watchdog timer: Monitors system activity and resets the system if it becomes unresponsive.
• Low-power operation: Consumes minimal power during normal operation.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring prevents system damage. - Manual reset input provides flexibility in system control. - Watchdog timer enhances system reliability. - Low-power operation conserves energy.

Disadvantages: - Limited supply voltage range (1.6V to 5.5V). - Operating temperature range may not be suitable for extreme environments.

Working Principles

The MAX6719AUTTWD1+T operates by continuously monitoring the system voltage using an internal voltage reference. If the voltage falls below a certain threshold, the output pin is pulled low, indicating a fault condition. The manual reset input allows for external control of the reset function, while the watchdog timer ensures that the system remains responsive by periodically resetting it if no activity is detected.

Detailed Application Field Plans

The MAX6719AUTTWD1+T is commonly used in various applications where accurate voltage monitoring and system reliability are critical. Some potential application fields include:

1. Power Supply Units: Ensuring stable voltage output and protecting against overvoltage or undervoltage conditions.
2. Industrial Control Systems: Monitoring critical voltages in machinery and triggering alarms or shutdowns in case of faults.
3. Automotive Electronics: Safeguarding sensitive electronic components from voltage fluctuations and providing reliable reset functionality.
4. Medical Devices: Ensuring proper operation and patient safety by monitoring voltage levels in medical equipment.
5. Home Automation Systems: Protecting smart home devices from power supply issues and enabling remote reset capabilities.

Detailed and Complete Alternative Models

1. MAX6718AUTTWD1+T: Similar to MAX6719AUTTWD1+T but with a different watchdog timeout period.
2. MAX6717AUTTWD1+T: Voltage supervisor with manual reset input but without the watchdog timer feature.
3. MAX6716AUTTWD1+T: Low-power voltage monitor with a different package option (SOT143-4).

These alternative models offer similar functionalities and can be considered as substitutes depending on specific requirements.

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