ADM1818-R22AKSZ-R7

Product Overview

Category: Integrated Circuit
Use: Voltage Supervisor
Characteristics: Low Power, Precision Monitoring, Reset Output
Package: SOT-23-3
Essence: Monitors the power supply voltage and provides a reset signal when the voltage falls below a certain threshold.
Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

Supply Voltage Range: 1.6V to 5.5V
Reset Threshold Voltage: 2.2V
Reset Timeout Period: 140ms (typical)
Quiescent Current: 1.5µA (typical)
Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ADM1818-R22AKSZ-R7 has three pins:

VCC: Connects to the positive supply voltage.
GND: Connects to the ground reference.
RESET: Provides the reset output signal.

Functional Features

Monitors the power supply voltage continuously.
Generates a reset signal when the voltage drops below the specified threshold.
Reset signal remains active for the timeout period after the voltage rises above the threshold.
Low quiescent current consumption, suitable for battery-powered applications.
Precision monitoring ensures accurate detection of voltage variations.

Advantages

Small form factor package allows for space-efficient designs.
Wide supply voltage range enables compatibility with various systems.
Low power consumption prolongs battery life in portable devices.
Precision monitoring ensures reliable operation under varying conditions.

Disadvantages

Fixed reset threshold voltage may not be suitable for all applications.
Reset timeout period may not be adjustable, limiting flexibility in certain scenarios.

Working Principles

The ADM1818-R22AKSZ-R7 operates by continuously monitoring the supply voltage connected to the VCC pin. When the voltage falls below the specified threshold (2.2V), the device generates a reset signal on the RESET pin. This reset signal remains active for the timeout period of 140ms after the voltage rises above the threshold.

Detailed Application Field Plans

The ADM1818-R22AKSZ-R7 is commonly used in various applications where reliable power supply monitoring and system reset functionality are required. Some typical application fields include:

Microcontrollers: Ensures proper initialization and reliable operation of microcontroller-based systems.
Embedded Systems: Provides a controlled reset during power-up or voltage fluctuations, preventing erratic behavior.
Industrial Control Systems: Monitors power supply integrity in industrial automation and control applications.
Automotive Electronics: Ensures stable operation of automotive electronic systems by detecting voltage drops and initiating resets if necessary.
Battery-Powered Devices: Protects battery-powered devices from operating at low voltages, preventing data corruption or system malfunction.

Detailed and Complete Alternative Models

ADM1815-R23AKSZ-R7
ADM1816-R23AKSZ-R7
ADM1817-R23AKSZ-R7
ADM1819-R23AKSZ-R7

(Note: The list above includes alternative models with similar specifications and functionality.)

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan ADM1818-R22AKSZ-R7 dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of ADM1818-R22AKSZ-R7 in technical solutions:

Q: What is the ADM1818-R22AKSZ-R7? A: The ADM1818-R22AKSZ-R7 is a voltage supervisor IC (integrated circuit) that monitors the power supply voltage and generates a reset signal when the voltage falls below a certain threshold.
Q: What is the purpose of using the ADM1818-R22AKSZ-R7 in technical solutions? A: The ADM1818-R22AKSZ-R7 ensures reliable system operation by monitoring the power supply voltage and initiating a reset if it drops below a specified level, preventing erratic behavior or data corruption.
Q: What is the operating voltage range of the ADM1818-R22AKSZ-R7? A: The ADM1818-R22AKSZ-R7 operates within a voltage range of 1.6V to 5.5V.
Q: How does the ADM1818-R22AKSZ-R7 generate a reset signal? A: The ADM1818-R22AKSZ-R7 uses an internal comparator to compare the monitored voltage with a reference voltage. When the monitored voltage falls below the reference voltage, it triggers the reset signal.
Q: Can I adjust the threshold voltage for generating the reset signal? A: No, the ADM1818-R22AKSZ-R7 has a fixed threshold voltage of 2.2V.
Q: What is the typical reset time delay of the ADM1818-R22AKSZ-R7? A: The typical reset time delay of the ADM1818-R22AKSZ-R7 is 140ms.
Q: Does the ADM1818-R22AKSZ-R7 have an open-drain or push-pull output? A: The ADM1818-R22AKSZ-R7 has an open-drain output, which allows for flexibility in connecting to different microcontrollers or logic devices.
Q: Can the ADM1818-R22AKSZ-R7 be used in battery-powered applications? A: Yes, the ADM1818-R22AKSZ-R7 is suitable for battery-powered applications as it operates within a low voltage range and has low quiescent current consumption.
Q: Is the ADM1818-R22AKSZ-R7 available in different package options? A: Yes, the ADM1818-R22AKSZ-R7 is available in a SOT-23 package, which is small and widely used in various electronic systems.
Q: Are there any additional features or protections provided by the ADM1818-R22AKSZ-R7? A: Yes, the ADM1818-R22AKSZ-R7 includes a power-on reset (POR) circuit that ensures a proper reset signal during power-up and power-down transitions, enhancing system reliability.

Please note that these answers are general and may vary depending on the specific datasheet and application requirements of the ADM1818-R22AKSZ-R7.