ADM1816-R22AKS-RL7

Overview

Product Category

ADM1816-R22AKS-RL7 belongs to the category of electronic components, specifically voltage supervisors.

Use

The ADM1816-R22AKS-RL7 is primarily used in electronic systems to monitor and control the supply voltage. It ensures that the voltage remains within a specified range, preventing damage to the system due to overvoltage or undervoltage conditions.

Characteristics

• Voltage monitoring: The ADM1816-R22AKS-RL7 monitors the supply voltage and provides a reset signal when it falls below or exceeds a predetermined threshold.
• Low power consumption: This component is designed to consume minimal power, making it suitable for battery-powered applications.
• Wide operating voltage range: It can operate within a wide range of supply voltages, typically from 1.6V to 5.5V.
• Small package size: The ADM1816-R22AKS-RL7 comes in a compact package, allowing for space-efficient integration into electronic systems.
• RoHS compliant: This component is manufactured in compliance with the Restriction of Hazardous Substances directive.

Package and Quantity

The ADM1816-R22AKS-RL7 is available in a small SOT-23 package. It is typically sold in reels containing a quantity of 3000 units.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage: 2.2V
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 3µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ADM1816-R22AKS-RL7 has three pins:

1. VCC: Connect this pin to the positive supply voltage.
2. GND: Connect this pin to the ground or negative supply voltage.
3. RESET: This pin outputs a reset signal when the monitored voltage falls below the threshold.

Functional Features

• Voltage Monitoring: The ADM1816-R22AKS-RL7 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 component generates a reset signal on the RESET pin.
• Reset Timeout: The reset signal remains active for a specific timeout period after the voltage rises above the threshold, ensuring proper system initialization.

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring and reset generation.
• Low power consumption.
• Wide operating voltage range.
• Compact package size.
• RoHS compliant.

Disadvantages

• Limited reset timeout period.
• Single threshold voltage option.

Working Principles

The ADM1816-R22AKS-RL7 operates by comparing the supply voltage with the preset threshold voltage. When the voltage falls below the threshold, the component triggers a reset signal. This signal remains active for a specific timeout period after the voltage rises above the threshold, allowing the system to stabilize before resuming normal operation.

Application Field Plans

The ADM1816-R22AKS-RL7 is commonly used in various electronic systems where reliable voltage monitoring and reset generation are critical. Some application fields include:

1. Microcontrollers: Ensuring proper initialization and preventing data corruption during power-up or voltage fluctuations.
2. Industrial Control Systems: Protecting sensitive equipment from damage due to voltage variations.
3. Automotive Electronics: Monitoring the vehicle's electrical system to prevent malfunctions and ensure safe operation.
4. Battery-Powered Devices: Maximizing battery life by preventing excessive discharge or overvoltage conditions.

Alternative Models

There are several alternative models available that offer similar functionality to the ADM1816-R22AKS-RL7. Some popular alternatives include:

1. MAX809: Manufactured by Maxim Integrated, this voltage supervisor offers adjustable threshold voltage options.
2. MCP131: Produced by Microchip Technology, this component provides additional features such as manual reset input and watchdog timer functionality.
3. TPS383: Texas Instruments offers this voltage supervisor with a wide range of threshold voltage options and adjustable reset timeout periods.

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

In conclusion, the ADM1816-R22AKS-RL7 is a voltage supervisor component used in electronic systems to monitor and control the supply voltage. It offers reliable voltage monitoring, low power consumption, and a compact package size. However, it has limitations in terms of reset timeout period and single threshold voltage option. The component finds applications in microcontrollers, industrial control systems, automotive electronics, and battery-powered devices. Alternative models like MAX809, MCP131, and TPS383 provide similar functionality with additional features.