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MIC3808BM
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MIC3808BM

Product Overview

  • Category: Integrated Circuit
  • Use: Voltage Supervisor
  • Characteristics: Low Power, Precision Monitoring, Reset Output
  • Package: SOIC-8
  • Essence: Monolithic CMOS IC
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 1.6V to 5.5V
  • Reset Threshold Voltage Options: 2.63V, 3.08V, 4.38V, 4.63V
  • Reset Timeout Period Options: 140ms, 560ms, 1120ms, 2240ms
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MIC3808BM features an SOIC-8 package with the following pin configuration:

  1. VCC: Supply Voltage Input
  2. GND: Ground
  3. RESET: Active-Low Reset Output
  4. MR: Manual Reset Input
  5. TH: Threshold Selection Input
  6. CT: Capacitor Connection for Reset Timeout
  7. NC: No Connect
  8. VCC: Supply Voltage Input

Functional Features

  • Precision monitoring of supply voltage
  • Reset output remains low during power-up and power-down
  • Manual reset input for immediate system reset
  • Selectable threshold voltage and reset timeout period
  • Low quiescent current consumption

Advantages and Disadvantages

Advantages

  • Wide supply voltage range allows compatibility with various systems
  • Precision monitoring ensures reliable operation
  • Reset output behavior prevents false triggering
  • Manual reset input provides flexibility in system control
  • Low power consumption extends battery life

Disadvantages

  • Limited number of threshold voltage and reset timeout options
  • Not suitable for high-temperature applications above 85°C

Working Principles

The MIC3808BM is designed to monitor the supply voltage of a system and provide a reset signal when the voltage falls below a certain threshold. It operates based on a precision voltage reference and a comparator circuit. The threshold voltage and reset timeout period can be selected using external resistors and capacitors.

During normal operation, the IC continuously compares the supply voltage with the set threshold voltage. If the voltage drops below the threshold, the reset output goes low, indicating a system reset. The reset output remains low until the supply voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

The MIC3808BM is widely used in various electronic systems where reliable voltage monitoring and system reset functionality are required. Some common application fields include:

  1. Microcontrollers and microprocessors
  2. Embedded systems
  3. Power management circuits
  4. Battery-powered devices
  5. Industrial control systems
  6. Automotive electronics

Detailed and Complete Alternative Models

  1. MAX809: Voltage Supervisor IC with Manual Reset Input
  2. ADM708: Precision Voltage Monitor with Adjustable Threshold
  3. TPS383: Low-Power Voltage Supervisor with Programmable Delay
  4. LTC2910: Dual Supply Monitor with Adjustable Thresholds

These alternative models offer similar functionality and can be considered as substitutes for the MIC3808BM in different applications.

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Énumérez 10 questions et réponses courantes liées à l'application de MIC3808BM dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of MIC3808BM in technical solutions:

  1. Q: What is MIC3808BM? A: MIC3808BM is a voltage supervisor IC (Integrated Circuit) that monitors the power supply voltage and provides a reset signal when the voltage falls below a certain threshold.

  2. Q: What are the typical applications of MIC3808BM? A: MIC3808BM is commonly used in various technical solutions such as microcontrollers, DSPs (Digital Signal Processors), FPGAs (Field-Programmable Gate Arrays), and other digital systems where reliable power supply monitoring is required.

  3. Q: How does MIC3808BM work? A: MIC3808BM continuously monitors the input voltage and compares it with a reference voltage. If the input voltage drops below the reference voltage, it generates a reset signal to initiate a system reset.

  4. Q: What is the operating voltage range of MIC3808BM? A: The operating voltage range of MIC3808BM is typically between 1.6V and 5.5V.

  5. Q: Can MIC3808BM tolerate voltage spikes or transients? A: Yes, MIC3808BM has built-in protection against voltage spikes and transients, making it suitable for use in noisy environments.

  6. Q: Does MIC3808BM have an adjustable reset threshold? A: No, MIC3808BM has a fixed reset threshold voltage, typically set at 4.63V.

  7. Q: What is the output type of MIC3808BM? A: MIC3808BM has an open-drain output, which means it can be connected to an external pull-up resistor to achieve the desired output voltage level.

  8. Q: Can MIC3808BM operate in a wide temperature range? A: Yes, MIC3808BM is designed to operate reliably in a wide temperature range, typically from -40°C to +85°C.

  9. Q: Is MIC3808BM available in different package options? A: Yes, MIC3808BM is available in various package options, including SOT-23 and SOIC, providing flexibility for different PCB layouts.

  10. Q: Are there any additional features of MIC3808BM? A: Yes, MIC3808BM includes a power-on reset delay circuitry to ensure a stable power supply before releasing the reset signal, preventing false resets during power-up.

Please note that the answers provided here are general and may vary depending on the specific datasheet and application requirements of MIC3808BM.