ADM1817-R23ART-RL7

Product Overview

Category

ADM1817-R23ART-RL7 belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and controlling the voltage levels in electronic circuits.

Characteristics

• Voltage supervision range: 2.3V
• Package type: SOT-23
• Essence: Monitors voltage levels and provides reset signals when necessary.
• Packaging/Quantity: Comes in a reel with 3000 units per reel.

Specifications

The specifications of ADM1817-R23ART-RL7 are as follows:

• Supply Voltage Range: 1.8V to 5.5V
• Reset Threshold Voltage: 2.3V
• Reset Timeout Period: Adjustable
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 10µA (typical)

Pin Configuration

ADM1817-R23ART-RL7 has the following pin configuration:

1. GND (Ground)
2. RESET (Reset Output)
3. VCC (Supply Voltage)

Functional Features

The functional features of ADM1817-R23ART-RL7 include:

• Voltage monitoring: It continuously monitors the supply voltage and compares it with the preset threshold.
• Reset signal generation: When the monitored voltage falls below the threshold, it generates a reset signal to initiate system reset or other actions.
• Adjustable timeout period: The reset timeout period can be adjusted according to the application requirements.
• Low quiescent current: It consumes minimal power during operation, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Adjustable timeout period offers flexibility in different applications. - Low quiescent current minimizes power consumption.

Disadvantages: - Fixed reset threshold voltage may not be suitable for all voltage monitoring scenarios. - Limited package options may restrict its use in certain circuit designs.

Working Principles

ADM1817-R23ART-RL7 operates based on the principle of voltage comparison. It compares the supply voltage with the preset threshold voltage. If the supply voltage drops below the threshold, it triggers the reset output, indicating a voltage fault or power loss. The timeout period ensures that the reset signal remains active for a specific duration to allow the system to stabilize before resuming normal operation.

Application Field Plans

ADM1817-R23ART-RL7 finds applications in various fields, including:

1. Microcontroller Systems: It ensures reliable operation by monitoring the supply voltage and initiating a reset when necessary.
2. Industrial Control Systems: It provides voltage supervision to prevent malfunctions and ensure system integrity.
3. Automotive Electronics: It monitors critical voltages in automotive systems, triggering resets in case of voltage fluctuations or faults.
4. Battery-Powered Devices: It helps manage power consumption and protect against undervoltage conditions in portable devices.

Alternative Models

Some alternative models that offer similar functionality to ADM1817-R23ART-RL7 are:

1. MAX809: Manufactured by Maxim Integrated, it offers adjustable reset thresholds and various package options.
2. MCP131: Produced by Microchip Technology, it provides low-power voltage monitoring with adjustable timeout periods.
3. TPS383: Texas Instruments' offering with programmable reset thresholds and wide operating temperature range.

These alternative models can be considered based on specific application requirements and design constraints.

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