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MAX825LEUK-T
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MAX825LEUK-T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Supervisor
  • Characteristics: Low-power, precision voltage monitoring
  • Package: SOT-23-5
  • Essence: Monitors the power supply voltage and generates a reset signal when it falls below a certain threshold.
  • Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

  • Supply Voltage Range: 1.6V to 6.0V
  • Reset Threshold Options: 2.5V, 3.0V, 3.3V, 3.6V
  • Reset Timeout Period: Adjustable from 1ms to 640ms
  • Quiescent Current: 1µA (typical)
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX825LEUK-T is a 5-pin device with the following pinout:

  1. GND: Ground connection
  2. RESET: Active-low reset output
  3. MR: Manual reset input
  4. VCC: Positive power supply
  5. TH: Threshold selection pin

Functional Features

  • Monitors the power supply voltage continuously
  • Generates a reset signal when the voltage falls below the set threshold
  • Provides an adjustable reset timeout period
  • Allows manual reset through the MR pin
  • Low quiescent current for power efficiency

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows flexibility in different applications - Adjustable reset threshold and timeout period for customization - Low quiescent current minimizes power consumption - Small package size enables space-saving designs

Disadvantages: - Limited number of available reset threshold options - Lack of built-in hysteresis for voltage monitoring

Working Principles

The MAX825LEUK-T operates by continuously monitoring the power supply voltage. When the voltage falls below the set threshold, it triggers the reset signal, which remains active until the voltage rises above the threshold or a manual reset is initiated. The reset timeout period can be adjusted to suit specific application requirements.

Detailed Application Field Plans

The MAX825LEUK-T is commonly used in various applications where reliable voltage monitoring and system reset functionality are crucial. Some typical application fields include:

  1. Microcontrollers and Microprocessors
  2. Embedded Systems
  3. Power Management Circuits
  4. Battery-Powered Devices
  5. Industrial Control Systems

Detailed and Complete Alternative Models

  • MAX823LEUK-T: Similar voltage supervisor IC with fixed 2.5V reset threshold
  • MAX826LEUK-T: Voltage supervisor IC with adjustable reset threshold and push-pull reset output
  • MAX828LEUK-T: Voltage supervisor IC with adjustable reset threshold and open-drain reset output

These alternative models offer different features and specifications to cater to diverse application requirements.

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技術ソリューションにおける MAX825LEUK-T の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of MAX825LEUK-T in technical solutions:

  1. Q: What is the MAX825LEUK-T? A: The MAX825LEUK-T is a low-power microprocessor reset circuit that monitors the power supply voltage and resets the microprocessor when necessary.

  2. Q: What is the operating voltage range of MAX825LEUK-T? A: The operating voltage range of MAX825LEUK-T is typically between 1.0V and 5.5V.

  3. Q: How does MAX825LEUK-T detect a power supply voltage failure? A: MAX825LEUK-T monitors the power supply voltage using an internal voltage reference and compares it with a threshold voltage. If the power supply voltage drops below the threshold, it triggers a reset signal.

  4. Q: Can I adjust the threshold voltage of MAX825LEUK-T? A: No, the threshold voltage of MAX825LEUK-T is fixed at 4.63V.

  5. Q: What is the typical reset timeout period of MAX825LEUK-T? A: The typical reset timeout period of MAX825LEUK-T is 140ms.

  6. Q: Can I change the reset timeout period of MAX825LEUK-T? A: Yes, the reset timeout period can be adjusted by connecting an external capacitor to the CT pin of MAX825LEUK-T.

  7. Q: Is MAX825LEUK-T suitable for battery-powered applications? A: Yes, MAX825LEUK-T is designed for low-power applications and can operate with a wide range of power supply voltages, making it suitable for battery-powered devices.

  8. Q: Does MAX825LEUK-T have a manual reset input? A: Yes, MAX825LEUK-T has an active-low MR (manual reset) input that can be used to force a reset externally.

  9. Q: Can I use MAX825LEUK-T in automotive applications? A: No, MAX825LEUK-T is not specifically designed for automotive applications and may not meet the required automotive standards.

  10. Q: What package does MAX825LEUK-T come in? A: MAX825LEUK-T is available in a SOT-23-5 package, which is a small surface-mount package with five pins.

Please note that these answers are based on general information about MAX825LEUK-T and may vary depending on specific application requirements. It's always recommended to refer to the datasheet and consult with the manufacturer for detailed technical specifications and guidelines.