Meixin Integrated
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MAX707CUA
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MAX707CUA

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Detector
  • Characteristics: Low-power, precision voltage monitoring
  • Package: 8-pin micro small outline package (MSOP)
  • Essence: Monitors the power supply voltage and provides a reset signal when the voltage drops below a specified threshold.
  • Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

  • Supply Voltage Range: 1.6V to 5.5V
  • Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 4.38V
  • Reset Timeout Period: 140ms (typical)
  • Quiescent Current: 1µA (typical)
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX707CUA features an 8-pin micro small outline package (MSOP) with the following pin configuration:

  1. GND: Ground connection
  2. VCC: Positive power supply input
  3. RESET: Active-low reset output
  4. TH: Threshold voltage selection pin
  5. MR: Manual reset input
  6. NC: No connection
  7. NC: No connection
  8. VCC: Positive power supply input

Functional Features

  • Voltage Monitoring: The MAX707CUA continuously monitors the power supply voltage and compares it to the selected threshold voltage.
  • Reset Signal Generation: When the power supply voltage drops below the threshold voltage, the MAX707CUA generates an active-low reset signal.
  • Manual Reset Input: The MR pin allows for manual reset control, overriding the automatic reset function.
  • Power-On Reset Delay: The device includes a power-on reset delay circuit to ensure stable operation during power-up.

Advantages and Disadvantages

Advantages: - Low-power consumption - Precision voltage monitoring - Small package size - Wide supply voltage range

Disadvantages: - Limited threshold voltage options - No adjustable reset timeout period

Working Principles

The MAX707CUA operates by comparing the power supply voltage with the selected threshold voltage. When the power supply voltage drops below the threshold voltage, the device generates an active-low reset signal. The reset signal remains active until the power supply voltage rises above the threshold voltage and a specified reset timeout period elapses.

Application Field Plans

The MAX707CUA is commonly used in various applications where voltage monitoring and reset functionality are required. Some potential application fields include:

  1. Microcontrollers: Ensuring proper operation and system integrity by monitoring the power supply voltage and initiating a reset when necessary.
  2. Battery-Powered Devices: Preventing damage to sensitive electronics by providing a reset signal when the battery voltage drops below a safe threshold.
  3. Industrial Control Systems: Enhancing reliability by monitoring critical power supply voltages and triggering resets in case of voltage fluctuations or failures.

Alternative Models

  1. MAX706CUA: Similar to MAX707CUA but with different threshold voltage options (1.8V, 2.5V, 3.0V, 4.38V).
  2. MAX708CUA: Voltage detector with adjustable reset timeout period and additional manual reset input.
  3. MAX809CUA: Microprocessor supervisory circuit with a wider supply voltage range and adjustable reset timeout period.

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Énumérez 10 questions et réponses courantes liées à l'application de MAX707CUA dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of MAX707CUA in technical solutions:

  1. Q: What is the MAX707CUA? A: The MAX707CUA is a voltage detector and reset IC that monitors the power supply voltage of a system and generates a reset signal when the voltage falls below a specified threshold.

  2. Q: What is the operating voltage range of the MAX707CUA? A: The MAX707CUA operates within a voltage range of 1.6V to 5.5V.

  3. Q: How does the MAX707CUA generate a reset signal? A: When the monitored voltage drops below the threshold, the MAX707CUA asserts the reset signal for a fixed duration (typically 140ms) to initiate a system reset.

  4. Q: Can I adjust the threshold voltage of the MAX707CUA? A: No, the threshold voltage of the MAX707CUA is fixed at a specific value (e.g., 4.63V).

  5. Q: What is the typical quiescent current consumption of the MAX707CUA? A: The MAX707CUA has a low quiescent current consumption of typically 7µA.

  6. Q: Is the MAX707CUA suitable for battery-powered applications? A: Yes, the low quiescent current and wide operating voltage range make the MAX707CUA suitable for battery-powered applications.

  7. Q: Can the MAX707CUA be used as a watchdog timer? A: No, the MAX707CUA is specifically designed as a voltage detector and reset IC and does not include watchdog timer functionality.

  8. Q: What is the maximum reset timeout period of the MAX707CUA? A: The MAX707CUA has a maximum reset timeout period of typically 140ms.

  9. Q: Can the MAX707CUA be used in automotive applications? A: Yes, the MAX707CUA is qualified for automotive applications and meets the necessary standards.

  10. Q: What package does the MAX707CUA come in? A: The MAX707CUA is available in an 8-pin µMAX package, which is a small surface-mount package with a footprint of approximately 3mm x 3mm.

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