ADM1811-5ARTZ-REEL

Product Overview

Category

ADM1811-5ARTZ-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: ADM1811-5ARTZ-REEL is designed to monitor the supply voltage and provide a reset signal when it falls below a certain threshold.
• Reset function: It ensures that the microcontroller or other digital circuitry starts in a known state after power-up or voltage fluctuations.
• Low power consumption: The device operates with low power consumption, making it suitable for battery-powered applications.
• Wide operating voltage range: ADM1811-5ARTZ-REEL can operate within a wide voltage range, typically from 1.6V to 5.5V.
• Small package size: This IC is available in a small SOT-23 package, which makes it suitable for space-constrained designs.

Package and Quantity

ADM1811-5ARTZ-REEL is packaged in a tape and reel format, specifically designed for automated assembly processes. Each reel contains a specified quantity of ICs, typically 3000 units.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage: 2.93V
• Reset Timeout Period: 140ms
• Quiescent Current: 3µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

ADM1811-5ARTZ-REEL has a total of three pins:

1. VDD: Power supply input pin.
2. GND: Ground reference pin.
3. RESET: Output pin for the reset signal.

Functional Features

• Voltage Monitoring: The ADM1811-5ARTZ-REEL continuously monitors the supply voltage and compares it to the preset threshold voltage.
• Reset Signal Generation: When the supply voltage falls below the threshold, the device generates a reset signal on the RESET pin.
• Reset Timeout: The reset signal remains active for a specific timeout period (140ms) after the supply voltage rises above the threshold.
• Manual Reset Input: An additional feature allows for manual reset by asserting a low-level signal on the RESET pin.

Advantages and Disadvantages

Advantages

• Reliable Power-On Reset: Ensures that the microcontroller or digital circuitry starts in a known state, preventing erratic behavior.
• Low Power Consumption: Suitable for battery-powered applications, extending battery life.
• Wide Operating Voltage Range: Can be used with various power supply voltages.
• Small Package Size: Ideal for space-constrained designs.

Disadvantages

• Fixed Threshold Voltage: The threshold voltage is not adjustable, limiting its flexibility in certain applications.
• Single Reset Timeout Period: The timeout period may not be suitable for all applications, requiring external circuitry for customization.

Working Principles

ADM1811-5ARTZ-REEL operates based on a voltage comparator circuit. It compares the supply voltage with the preset threshold voltage. When the supply voltage drops below the threshold, the reset signal is generated. The reset signal remains active for a specific timeout period after the supply voltage rises above the threshold. This ensures that the microcontroller or digital circuitry starts in a known state.

Application Field Plans

ADM1811-5ARTZ-REEL finds applications in various electronic devices where voltage monitoring and reliable reset functionality are required. Some potential application fields include: - Microcontrollers and microprocessors - Embedded systems - Industrial automation - Consumer electronics - Medical devices - Automotive electronics

Alternative Models

There are several alternative models available in the market that offer similar functionality to ADM1811-5ARTZ-REEL. Some popular alternatives include: - MAX809: Manufactured by Maxim Integrated, this IC offers adjustable reset threshold voltage and timeout period. - MCP101: Produced by Microchip Technology, it provides a wide range of reset threshold voltage options. - TPS3808: Texas Instruments manufactures this IC with adjustable reset threshold voltage and timeout period.

These alternative models can be considered based on specific application requirements and desired features.

In conclusion, ADM1811-5ARTZ-REEL is an integrated circuit used for voltage monitoring and reset functions. It offers reliable power-on reset, low power consumption, and operates within a wide voltage range. Its small package size makes it suitable for space-constrained designs. However, it has a fixed threshold voltage and a single reset timeout period. This IC finds applications in various electronic devices across different industries. Alternative models such as MAX809, MCP101, and TPS3808 provide additional options with adjustable parameters.