Overview
The ADT7473ARQZ-REEL, manufactured by ON Semiconductor, is a comprehensive thermal monitor and multiple PWM fan controller designed for systems that require precise thermal monitoring and active cooling. This device is particularly suited for noise-sensitive or power-sensitive applications. It communicates with the system via a serial system management bus, enabling control and programming functions over this interface. The ADT7473ARQZ-REEL can monitor the temperature of up to two remote sensor diodes and its own internal temperature, and it can control the speed of up to four fans to minimize acoustic noise and optimize system thermals.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Max Supply Voltage | 3.6 | V |
| Min Supply Voltage | 3 | V |
| Max Operating Temperature | 125 | °C |
| Min Operating Temperature | -40 | °C |
| Operating Supply Current | 1.5 | mA |
| Package Type | QSOP | - |
| Number of Pins | 16 | - |
| Mount Type | Surface Mount | - |
| Accuracy | 2.5% | - |
| Contact Plating | Tin | - |
| RoHS Compliance | Yes | - |
| Lead Free | Yes | - |
Key Features
- Monitors the temperature of up to two remote sensor diodes and its own internal temperature.
- Controls the speed of up to four fans using either low or high frequency drive signals to minimize acoustic noise.
- Automatic fan speed control loop optimizes fan speed based on measured temperature.
- Dynamic T control mode intelligently manages system thermals and acoustics.
- Provides critical thermal protection to the system via the bidirectional THERM pin.
- Series resistance cancellation on the remote channel for accurate temperature measurement.
- Enhanced acoustic mode reduces user perception of changing fan speeds.
- Communicates with the system via a serial system management bus (SMBus).
Applications
- Noise-sensitive applications requiring minimal acoustic noise from fans.
- Power-sensitive applications where efficient cooling is crucial.
- Server and data center cooling systems.
- High-performance computing systems.
- Telecommunication equipment.
- Industrial control systems.
Q & A
- What is the ADT7473ARQZ-REEL used for?
The ADT7473ARQZ-REEL is used as a thermal monitor and multiple PWM fan controller for systems requiring precise thermal monitoring and active cooling.
- What is the maximum operating temperature of the ADT7473ARQZ-REEL?
The maximum operating temperature is 125°C.
- How many fans can the ADT7473ARQZ-REEL control?
The device can control the speed of up to four fans.
- What communication interface does the ADT7473ARQZ-REEL use?
The device communicates via a serial system management bus (SMBus).
- What is the accuracy of the temperature measurement?
The temperature measurement accuracy is 2.5%.
- Is the ADT7473ARQZ-REEL RoHS compliant?
- What is the package type of the ADT7473ARQZ-REEL?
The package type is QSOP with 16 pins.
- Can the ADT7473ARQZ-REEL monitor internal and remote temperatures?
- Does the ADT7473ARQZ-REEL have thermal protection features?
- What is the dynamic T control mode in the ADT7473ARQZ-REEL?
The dynamic T control mode intelligently manages system thermals and acoustics.
