ADT7473ARQZ

Product Overview

Category

ADT7473ARQZ belongs to the category of integrated circuits (ICs).

Use

It is primarily used for temperature sensing and fan control in electronic devices.

Characteristics

• Temperature sensing accuracy
• Fan speed control
• Integrated thermal protection
• Low power consumption

Package

ADT7473ARQZ comes in a small outline integrated circuit (SOIC) package.

Essence

The essence of ADT7473ARQZ lies in its ability to accurately sense temperature and control fan speed, ensuring optimal thermal management in electronic devices.

Packaging/Quantity

It is typically packaged in reels and available in quantities of 2500 units per reel.

Specifications

• Temperature Sensing Range: -40°C to +125°C
• Supply Voltage: 2.7V to 5.5V
• Number of Pins: 16
• Communication Interface: I2C/SMBus

Detailed Pin Configuration

1. VCC: Power supply input
2. GND: Ground reference
3. SDA: Serial data line for I2C communication
4. SCL: Serial clock line for I2C communication
5. ALERT#: Interrupt output for temperature/fan events
6. TACH1: Tachometer input for fan speed measurement
7. TACH2: Tachometer input for fan speed measurement
8. PWM1: Pulse-width modulation output for fan control
9. PWM2: Pulse-width modulation output for fan control
10. FAN_FAULT#: Fault indication output for fan failure
11. TEMP1: Temperature sensor input
12. TEMP2: Temperature sensor input
13. TEMP3: Temperature sensor input
14. VDDA: Analog power supply input
15. VDDD: Digital power supply input
16. VREF: Reference voltage output for temperature sensing

Functional Features

1. Temperature Sensing: ADT7473ARQZ accurately measures temperature using its built-in sensors.
2. Fan Control: It provides precise fan speed control based on temperature readings.
3. Thermal Protection: Integrated thermal protection ensures safe operation by preventing overheating.
4. Communication Interface: The I2C/SMBus interface allows easy integration with microcontrollers.

Advantages and Disadvantages

Advantages

• Accurate temperature sensing
• Efficient fan speed control
• Integrated thermal protection
• Low power consumption

Disadvantages

• Limited temperature sensing range (-40°C to +125°C)
• Requires external microcontroller for full functionality

Working Principles

ADT7473ARQZ operates by continuously monitoring the temperature using its internal sensors. Based on the temperature readings, it adjusts the fan speed through the PWM outputs to maintain optimal thermal conditions. The integrated thermal protection feature ensures that the temperature stays within safe limits.

Detailed Application Field Plans

ADT7473ARQZ finds applications in various electronic devices where temperature management is critical. Some of the common application fields include:

1. Personal Computers: It is used to monitor and control the temperature of computer components such as CPUs and graphics cards.
2. Servers: ADT7473ARQZ ensures efficient cooling in server systems to prevent overheating and maintain reliable operation.
3. Home Appliances: It can be integrated into appliances like refrigerators and air conditioners to regulate temperature and optimize energy consumption.
4. Automotive Electronics: ADT7473ARQZ helps in managing temperature in automotive electronic systems, ensuring their longevity and performance.

Detailed and Complete Alternative Models

1. LM75A: A digital temperature sensor and thermal watchdog IC with I2C interface.
2. MAX31730: An integrated fan controller with temperature sensing capabilities.
3. TMP102: A low-power digital temperature sensor with I2C interface.

These alternative models offer similar functionality to ADT7473ARQZ and can be considered as alternatives based on specific requirements.

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