MAX811LEUS+TG002

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor
• Characteristics: Low-power, Precision, Reset Output
• Package: SOT-143
• Essence: Supervisory Circuit
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 2.93V, 3.08V, 4.38V
• Reset Timeout Period Options: 140ms, 560ms, 1120ms, 2240ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX811LEUS+TG002 IC has the following pin configuration:

1. GND: Ground connection
2. RESET: Active-low reset output
3. MR: Manual reset input
4. VCC: Positive supply voltage input

Functional Features

• Monitors the supply voltage and asserts a reset signal when it falls below the specified threshold.
• Provides a precision reset output that remains asserted for the specified timeout period after the supply voltage rises above the threshold.
• Offers a manual reset input for immediate system reset.
• Consumes low power, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Precise monitoring of supply voltage. - Low-power consumption. - Small package size. - Multiple threshold and timeout options.

Disadvantages: - Limited operating temperature range. - Requires an external pull-up resistor for proper operation.

Working Principles

The MAX811LEUS+TG002 is a supervisory circuit that continuously monitors the supply voltage. When the voltage drops below the programmed threshold, the reset output is asserted, indicating a power failure or an out-of-tolerance condition. The reset output remains active for the specified timeout period after the voltage rises above the threshold, ensuring a stable power supply before releasing the reset signal.

Detailed Application Field Plans

The MAX811LEUS+TG002 is commonly used in various applications, including:

1. Microcontrollers: Provides reliable power-on reset functionality to ensure proper initialization of microcontroller-based systems.
2. Industrial Control Systems: Monitors the supply voltage in industrial control systems to prevent erratic behavior or data corruption during power fluctuations.
3. Automotive Electronics: Ensures safe and reliable operation of automotive electronic systems by monitoring the supply voltage and initiating a reset if necessary.
4. Battery-Powered Devices: Maximizes battery life by monitoring the voltage and initiating a shutdown or low-power mode when the battery level is critically low.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MAX811LEUS+TG002 include:

1. MAX809: Low-power microprocessor reset circuits with different package options.
2. MAX813: Voltage monitors with adjustable threshold and timeout options.
3. MAX638: Precision voltage detectors with integrated watchdog timer.

These alternative models provide flexibility in terms of package options, threshold voltage settings, and additional features such as watchdog timers.

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