ON Semiconductor
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ADT7467ARQ
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ADT7467ARQ

Product Overview

Category: Integrated Circuit (IC)

Use: Temperature Sensor and Fan Controller

Characteristics: - Monitors temperature and controls fan speed - Provides accurate temperature measurements - Regulates fan speed based on temperature changes - Compact and versatile design - Suitable for various applications

Package: QFN (Quad Flat No-Lead)

Essence: The ADT7467ARQ is a temperature sensor and fan controller IC that allows precise monitoring of temperature and automatic control of fan speed.

Packaging/Quantity: The ADT7467ARQ is available in a QFN package and is typically sold in reels containing 250 units.

Specifications

  • Temperature Measurement Range: -40°C to +125°C
  • Resolution: 0.0625°C
  • Accuracy: ±1°C
  • Supply Voltage: 2.7V to 5.5V
  • Fan Control: PWM (Pulse Width Modulation) output
  • Communication Interface: I2C (Inter-Integrated Circuit)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ADT7467ARQ has a total of 16 pins, each serving a specific function:

  1. VDD: Power supply input
  2. GND: Ground connection
  3. SDA: I2C serial data input/output
  4. SCL: I2C serial clock input
  5. ALERT#: Open-drain output for temperature alert
  6. TACH1: Tachometer input for fan speed measurement
  7. TACH2: Tachometer input for fan speed measurement
  8. FAN1: PWM output for controlling fan speed
  9. FAN2: PWM output for controlling fan speed
  10. FAN3: PWM output for controlling fan speed
  11. FAN4: PWM output for controlling fan speed
  12. TDIODE: Temperature sensing diode input
  13. VCC: Power supply input
  14. GND: Ground connection
  15. NC: No connection
  16. NC: No connection

Functional Features

  1. Temperature Monitoring: The ADT7467ARQ accurately measures temperature using an internal temperature sensing diode.
  2. Fan Control: It regulates the speed of up to four fans based on the measured temperature, ensuring optimal cooling performance.
  3. Alert Function: The IC can generate an alert signal when the temperature exceeds a predefined threshold.
  4. I2C Interface: The ADT7467ARQ communicates with the microcontroller or system through the I2C interface, allowing easy integration into various applications.
  5. PWM Output: The IC provides four PWM outputs for precise control of fan speed.

Advantages and Disadvantages

Advantages: - Accurate temperature measurements - Automatic fan speed control - Compact and versatile design - Easy integration with I2C interface - Multiple PWM outputs for fan control

Disadvantages: - Limited temperature measurement range (-40°C to +125°C) - Accuracy may be affected by external factors such as noise or interference

Working Principles

The ADT7467ARQ operates by continuously monitoring the temperature using its internal diode sensor. It compares the measured temperature with predefined thresholds and adjusts the fan speed accordingly. The IC generates PWM signals that control the speed of connected fans, ensuring efficient cooling while maintaining a stable temperature.

Detailed Application Field Plans

The ADT7467ARQ is widely used in various applications, including but not limited to: - Personal computers and laptops - Servers and data centers - Industrial equipment and machinery - Automotive electronics - Home appliances

In personal computers, it helps maintain optimal operating temperatures by adjusting fan speed based on the CPU temperature. In servers and data centers, it ensures efficient cooling of critical components to prevent overheating. Industrial equipment and automotive electronics benefit from its accurate temperature monitoring and fan control capabilities.

Detailed and Complete Alternative Models

  1. ADT7468ARQ: Similar to ADT7467ARQ but with additional features such as voltage monitoring and extended temperature range.
  2. MAX31730: Temperature sensor and fan controller IC with similar functionality and package options.
  3. LM75A: Digital temperature sensor and thermal watchdog IC suitable for various applications.

These alternative models offer similar temperature sensing and fan control capabilities, providing options based on specific requirements and preferences.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af ADT7467ARQ i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of ADT7467ARQ in technical solutions:

  1. Question: What is ADT7467ARQ?
    Answer: ADT7467ARQ is a temperature sensor and fan controller IC used in various technical solutions.

  2. Question: What is the operating voltage range of ADT7467ARQ?
    Answer: The operating voltage range of ADT7467ARQ is typically between 3.0V and 5.5V.

  3. Question: How many temperature channels does ADT7467ARQ support?
    Answer: ADT7467ARQ supports up to four temperature channels.

  4. Question: Can ADT7467ARQ measure temperatures below freezing point?
    Answer: Yes, ADT7467ARQ can measure temperatures below freezing point as it has a wide temperature range.

  5. Question: Does ADT7467ARQ have any built-in fan control features?
    Answer: Yes, ADT7467ARQ has built-in PWM outputs for controlling fans based on temperature readings.

  6. Question: What is the maximum fan speed that ADT7467ARQ can control?
    Answer: ADT7467ARQ can control fans with speeds up to 25,000 RPM.

  7. Question: Can ADT7467ARQ be used in automotive applications?
    Answer: Yes, ADT7467ARQ is suitable for automotive applications as it can withstand high temperatures and voltage fluctuations.

  8. Question: Does ADT7467ARQ provide any fault detection or protection features?
    Answer: Yes, ADT7467ARQ includes fault detection and protection features such as over-temperature and over-voltage alerts.

  9. Question: Is ADT7467ARQ compatible with I2C communication protocol?
    Answer: Yes, ADT7467ARQ uses the I2C interface for communication with the microcontroller or host system.

  10. Question: Can multiple ADT7467ARQ ICs be used in parallel for increased temperature monitoring and fan control?
    Answer: Yes, multiple ADT7467ARQ ICs can be used in parallel to expand the number of temperature channels and fan control capabilities in a system.

Please note that these answers are general and may vary depending on the specific implementation and datasheet of ADT7467ARQ.