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ASM811LEUSF-T

ASM811LEUSF-T

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Supervisor

Characteristics: - Monitors the power supply voltage and generates a reset signal when the voltage falls below a predetermined threshold. - Ensures proper system initialization and prevents erratic behavior during power-up and power-down sequences.

Package: SOT-23-3

Essence: The ASM811LEUSF-T is a voltage supervisor IC designed to monitor the power supply voltage of electronic systems.

Packaging/Quantity: The ASM811LEUSF-T is available in tape and reel packaging, with 3000 units per reel.

Specifications

  • Supply Voltage Range: 1.8V to 5.5V
  • Reset Threshold Voltage Options: 2.63V, 2.93V, 3.08V, 4.38V
  • Reset Timeout Period Options: 140ms, 560ms, 1120ms, 2240ms
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ASM811LEUSF-T has three pins:

  1. VDD: Power supply input pin.
  2. GND: Ground reference pin.
  3. RESET: Output pin that provides a reset signal when the monitored voltage falls below the threshold.

Functional Features

  • Accurate monitoring of power supply voltage.
  • Adjustable reset threshold voltage and timeout period.
  • Open-drain RESET output for compatibility with various microcontrollers and digital logic circuits.
  • Low quiescent current consumption.
  • Built-in hysteresis for noise immunity.

Advantages

  • Reliable voltage supervision for proper system initialization.
  • Prevents erratic behavior during power-up and power-down sequences.
  • Flexible configuration options for different voltage and timing requirements.
  • Compact SOT-23-3 package for space-constrained applications.
  • Low power consumption for energy-efficient designs.

Disadvantages

  • Limited reset threshold voltage and timeout period options.
  • Requires an external pull-up resistor for the RESET pin.

Working Principles

The ASM811LEUSF-T operates by comparing the monitored power supply voltage with a preset threshold. When the voltage falls below the threshold, the IC generates a reset signal on the RESET pin. The reset signal remains active until the voltage rises above the threshold or the timeout period elapses.

Detailed Application Field Plans

The ASM811LEUSF-T is widely used in various electronic systems that require reliable power supply monitoring. Some common application fields include:

  1. Microcontroller-based systems
  2. Industrial control systems
  3. Automotive electronics
  4. Battery-powered devices
  5. Home automation systems

Detailed and Complete Alternative Models

  1. MAX811LEUSF-T: Similar voltage supervisor IC with adjustable reset threshold and timeout options.
  2. ADM811LEUSF-T: Voltage supervisor IC with fixed reset threshold and adjustable timeout options.
  3. MCP809LEUSF-T: Low-power voltage supervisor IC with fixed reset threshold and timeout options.

These alternative models offer similar functionality and can be considered as substitutes for the ASM811LEUSF-T in different applications.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de ASM811LEUSF-T en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of ASM811LEUSF-T in technical solutions:

  1. Q: What is ASM811LEUSF-T? A: ASM811LEUSF-T is a specific model of voltage supervisor IC (Integrated Circuit) manufactured by a company called ASM.

  2. Q: What is the purpose of ASM811LEUSF-T? A: The purpose of ASM811LEUSF-T is to monitor the voltage level of a power supply and provide a reset signal when the voltage falls below a certain threshold.

  3. Q: What are the typical applications of ASM811LEUSF-T? A: ASM811LEUSF-T is commonly used in various electronic devices and systems, such as microcontrollers, DSPs (Digital Signal Processors), and other embedded systems.

  4. Q: How does ASM811LEUSF-T work? A: ASM811LEUSF-T continuously monitors the voltage level at its input pin. If the voltage drops below a predefined threshold, it asserts a reset signal to the connected device, ensuring a controlled restart.

  5. Q: What is the voltage range supported by ASM811LEUSF-T? A: ASM811LEUSF-T typically supports a wide voltage range, such as 1.8V to 5.0V, making it compatible with various power supply configurations.

  6. Q: Can ASM811LEUSF-T be used in battery-powered applications? A: Yes, ASM811LEUSF-T can be used in battery-powered applications as it has low quiescent current consumption, which helps conserve battery life.

  7. Q: Does ASM811LEUSF-T have any built-in delay for the reset signal? A: Yes, ASM811LEUSF-T provides a programmable reset delay feature, allowing users to set the desired delay time before asserting the reset signal.

  8. Q: Can ASM811LEUSF-T be used in safety-critical applications? A: Yes, ASM811LEUSF-T is designed to meet industry standards for safety and reliability, making it suitable for safety-critical applications.

  9. Q: Are there any additional features or protections provided by ASM811LEUSF-T? A: Yes, ASM811LEUSF-T includes features like power-on reset, watchdog timer, and thermal shutdown protection, enhancing system reliability.

  10. Q: Where can I find more information about ASM811LEUSF-T? A: You can refer to the datasheet and technical documentation provided by ASM or visit their official website for detailed information about ASM811LEUSF-T.