ADM811LARTZ-REEL

Product Overview

Category

The ADM811LARTZ-REEL 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: The ADM811LARTZ-REEL is designed to monitor the power supply voltage and provide a reset signal when it falls below a specified threshold.
• Reset function: It ensures that the microcontroller or other digital circuitry starts operating correctly after power-up or a voltage drop.
• Low power consumption: The device operates with low quiescent current, making it suitable for battery-powered applications.
• Wide voltage range: It can monitor voltages from 1.6V to 5.5V, providing flexibility in various applications.

Package and Quantity

The ADM811LARTZ-REEL is available in a small surface-mount package (SOT-23) and is typically sold in reels containing a large quantity of units.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 2.93V, 3.08V, 4.38V
• Quiescent Current: 7µA (typical)
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ADM811LARTZ-REEL has three pins:

1. VCC: Power supply input pin.
2. GND: Ground reference pin.
3. RESET: Output pin that provides a reset signal to the connected circuitry.

Functional Features

• Precision voltage monitoring: The ADM811LARTZ-REEL accurately monitors the power supply voltage, ensuring reliable operation of the connected circuitry.
• Reset signal generation: When the voltage falls below the specified threshold, the device generates a reset signal to initiate a proper system restart.
• Adjustable reset threshold: The ADM811LARTZ-REEL offers multiple options for the reset threshold voltage, allowing customization based on specific application requirements.
• Power-on reset delay: It provides a fixed delay period after power-up to ensure stable operation before releasing the reset signal.

Advantages and Disadvantages

Advantages

• Compact size and surface-mount package enable space-efficient integration into electronic devices.
• Wide operating voltage range makes it compatible with various power supply configurations.
• Low quiescent current consumption prolongs battery life in portable applications.
• Adjustable reset threshold voltage allows flexibility in different voltage monitoring scenarios.

Disadvantages

• Lack of built-in hysteresis may result in potential noise-induced false triggering of the reset signal.
• Limited reset timeout period may not be suitable for applications requiring longer delays during power-up.

Working Principles

The ADM811LARTZ-REEL operates by comparing the monitored voltage with the preset threshold voltage. When the voltage drops below the threshold, the internal circuitry triggers the reset output, which remains active until the voltage rises above the threshold or the reset timeout period elapses.

Application Field Plans

The ADM811LARTZ-REEL finds applications in various electronic systems, including but not limited to: - Microcontrollers and microprocessors - Embedded systems - Industrial control systems - Portable devices - Battery-powered equipment - Communication devices

Alternative Models

For those seeking alternative options, the following integrated circuits can be considered: - MAX811: Offers similar voltage monitoring and reset functions with adjustable threshold options. - MCP809: Provides additional features like manual reset input and watchdog timer functionality. - TPS3808: Includes programmable delay time and hysteresis for enhanced noise immunity.

These alternative models offer comparable functionality to the ADM811LARTZ-REEL and can be evaluated based on specific application requirements.

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