QD Devices Inc.
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ADM809DF

ADM809DF

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Supervisor
  • Characteristics: Low-power, Precision, Reset Output
  • Package: SOT-23-3
  • Essence: Monolithic Microprocessor Reset Circuits
  • Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

  • Supply Voltage Range: 1.2V to 5.5V
  • Reset Threshold Voltage Options: 2.93V, 3.08V, 3.15V, 4.38V, 4.63V, 4.75V
  • Reset Timeout Period Options: 140ms, 560ms, 1120ms, 2240ms
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ADM809DF is a three-pin device with the following pin configuration:

  • Pin 1: GND (Ground)
  • Pin 2: RESET (Reset Output)
  • Pin 3: VCC (Supply Voltage)

Functional Features

  • Monitors the supply voltage and asserts the reset output when the voltage drops below the specified threshold.
  • Provides a precision reset signal to microprocessors and other digital systems.
  • Offers a choice of reset threshold voltages and timeout periods for flexibility in system design.
  • Low-power consumption makes it suitable for battery-powered applications.

Advantages

  • Small package size allows for space-efficient designs.
  • Wide supply voltage range enables compatibility with various systems.
  • Precision reset output ensures reliable operation of microprocessors.
  • Low-power consumption prolongs battery life in portable devices.

Disadvantages

  • Limited number of reset threshold voltage options may not meet the requirements of all applications.
  • Fixed timeout period options may not be suitable for all system configurations.

Working Principles

The ADM809DF operates by monitoring the supply voltage using an internal voltage reference. When the voltage drops below the specified threshold, the reset output is asserted, indicating a power-on reset condition. The reset output remains active until the supply voltage rises above the threshold and the timeout period elapses.

Detailed Application Field Plans

The ADM809DF is commonly used in various applications where reliable voltage supervision is required. Some typical application fields include:

  1. Microcontroller Systems: Ensuring proper initialization and reliable operation of microcontrollers.
  2. Embedded Systems: Providing a reset signal to ensure correct system startup and prevent erratic behavior.
  3. Industrial Control Systems: Monitoring power supply integrity in critical control systems.
  4. Automotive Electronics: Resetting microprocessors in automotive applications for enhanced safety and reliability.
  5. Portable Devices: Protecting data integrity and preventing system malfunction due to low battery voltage.

Detailed and Complete Alternative Models

  • ADM803: Similar voltage supervisor IC with adjustable reset threshold and timeout options.
  • MAX809: Voltage monitor IC with a wide range of reset threshold voltage options.
  • MCP130: Precision voltage monitor IC with adjustable reset threshold and timeout periods.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi ADM809DF dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of ADM809DF in technical solutions:

  1. Q: What is ADM809DF? A: ADM809DF is a voltage monitoring and reset IC (Integrated Circuit) used in electronic systems.

  2. Q: What is the purpose of ADM809DF? A: The purpose of ADM809DF is to monitor the power supply voltage and generate a reset signal when the voltage falls below a specified threshold.

  3. Q: What is the operating voltage range of ADM809DF? A: The operating voltage range of ADM809DF is typically between 1.6V and 5.5V.

  4. Q: How does ADM809DF generate a reset signal? A: ADM809DF generates a reset signal by pulling the RESET pin low when the monitored voltage drops below the specified threshold.

  5. Q: Can ADM809DF be used with both microcontrollers and microprocessors? A: Yes, ADM809DF can be used with both microcontrollers and microprocessors as it provides a reliable reset signal during power-up and power-down sequences.

  6. Q: What is the typical reset timeout period of ADM809DF? A: The typical reset timeout period of ADM809DF is around 140ms, ensuring that the system remains in a reset state for a sufficient duration during power-up.

  7. Q: Can ADM809DF be used in battery-powered applications? A: Yes, ADM809DF can be used in battery-powered applications as it has a low quiescent current consumption, making it suitable for power-sensitive designs.

  8. Q: Does ADM809DF have any built-in hysteresis? A: Yes, ADM809DF has a built-in hysteresis of typically 50mV, which prevents false reset signals due to voltage fluctuations or noise.

  9. Q: Can ADM809DF be used in automotive applications? A: Yes, ADM809DF is suitable for automotive applications as it meets the necessary automotive standards and has a wide operating temperature range.

  10. Q: Are there any additional features of ADM809DF? A: Yes, ADM809DF also includes a manual reset input, power-on reset delay, and an open-drain output option for flexibility in system design.

Please note that these answers are general and may vary depending on the specific datasheet and application requirements of ADM809DF.