ADM811RARTZ-REEL7

Product Overview

Category

ADM811RARTZ-REEL7 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: ADM811RARTZ-REEL7 monitors the supply voltage and provides a reset signal when the voltage drops below a specified threshold.
• Reset function: It ensures that the microcontroller or other digital circuitry starts operating from a known state after power-up or voltage fluctuations.
• Low power consumption: The device operates with low quiescent current, making it suitable for battery-powered applications.
• Small package size: ADM811RARTZ-REEL7 is available in a small SOT-23 package, which saves board space.

Package and Quantity

ADM811RARTZ-REEL7 is packaged in a tape and reel format, containing 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: 140ms (typical)
• Quiescent current: 8µA (typical)
• Operating temperature range: -40°C to +85°C

Pin Configuration

ADM811RARTZ-REEL7 has three pins:

1. VCC: This pin is connected to the positive supply voltage.
2. GND: This pin is connected to the ground or negative supply voltage.
3. RESET: This pin outputs the reset signal to the microcontroller or digital circuitry.

Functional Features

1. Voltage Monitoring: ADM811RARTZ-REEL7 continuously monitors the supply voltage and compares it to the preset threshold voltage.
2. Reset Generation: When the supply voltage drops below the threshold, the device generates a reset signal, ensuring proper initialization of the microcontroller or digital circuitry.
3. Reset Timeout: The reset signal remains active for a fixed period (140ms) after the supply voltage rises above the threshold, allowing sufficient time for stable operation.

Advantages and Disadvantages

Advantages

• Reliable reset function ensures proper system initialization.
• Low power consumption extends battery life in portable devices.
• Small package size saves board space.
• Wide operating voltage range allows compatibility with various systems.

Disadvantages

• Limited reset threshold voltage options may not suit all applications.
• Fixed reset timeout period may not be adjustable for specific requirements.

Working Principles

ADM811RARTZ-REEL7 utilizes a voltage comparator to monitor the supply voltage. When the voltage drops below the preset threshold, the comparator triggers the generation of a reset signal. This signal remains active for a fixed period after the voltage rises above the threshold, providing sufficient time for stable operation.

Application Field Plans

ADM811RARTZ-REEL7 finds applications in various electronic devices, including: 1. Microcontrollers: Ensures reliable startup and operation of microcontroller-based systems. 2. Embedded Systems: Provides voltage monitoring and reset functionality in embedded systems. 3. Power Management: Assists in managing power supply fluctuations and preventing system malfunctions.

Alternative Models

1. ADM803/ADM809: These models offer similar voltage monitoring and reset functions with different specifications.
2. MAX809/MAX810: These alternatives provide comparable features and are widely used in the industry.

In conclusion, ADM811RARTZ-REEL7 is an integrated circuit that provides voltage monitoring and reset functions. Its small package size, low power consumption, and reliable operation make it suitable for various electronic devices. However, the limited reset threshold options and fixed reset timeout period should be considered for specific application requirements. Alternative models such as ADM803/ADM809 and MAX809/MAX810 can also be considered based on individual needs.