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ADM1818-R22AKSZ-R7
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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:

  1. VCC: Connects to the positive supply voltage.
  2. GND: Connects to the ground reference.
  3. 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:

  1. Microcontrollers: Ensures proper initialization and reliable operation of microcontroller-based systems.
  2. Embedded Systems: Provides a controlled reset during power-up or voltage fluctuations, preventing erratic behavior.
  3. Industrial Control Systems: Monitors power supply integrity in industrial automation and control applications.
  4. Automotive Electronics: Ensures stable operation of automotive electronic systems by detecting voltage drops and initiating resets if necessary.
  5. 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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قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق ADM1818-R22AKSZ-R7 في الحلول التقنية

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

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. 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.

  9. 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.

  10. 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.