Overview
The ADT7476AARQZ is a remote thermal controller and voltage monitor produced by onsemi. This integrated circuit is designed for noise-sensitive or power-sensitive applications that require active system cooling. It is particularly useful in systems where precise temperature monitoring and fan speed control are crucial. The ADT7476AARQZ can monitor the temperature of up to two remote sensor diodes and its own internal temperature, making it a comprehensive thermal management solution.
Key Specifications
| Attribute | Value |
|---|---|
| Supply Voltage | 3.0 V to 3.6 V |
| Operating Temperature Range | -40°C to +125°C |
| Sensing Temperature Range | -40°C to +125°C (remote), -63°C to +127°C (measured) |
| Sensing Accuracy | ± 1.5°C |
| Package Style | QSOP-24 |
| Mounting Method | Surface Mount |
| No. of Pins | 24 Pins |
| Output Interface | SMBus |
| MSL | MSL 3 - 168 hours |
Key Features
- Monitors up to two remote sensor diodes and its own internal temperature.
- Controls the speed of up to four fans using PWM signals, optimizing for minimum acoustic noise.
- Provides critical thermal protection using the bidirectional THERM pin.
- Monitors and controls multiple system voltages (e.g., +12V, +5V, VID).
- Supports SMBus interface for communication.
- Automatic fan speed control loop to optimize fan speed based on temperature.
Applications
- Noise-sensitive or power-sensitive electronic systems.
- Server and data center cooling systems.
- High-performance computing and gaming systems.
- Aerospace and automotive systems requiring precise thermal management.
- Telecommunication equipment and network infrastructure.
Q & A
- What is the primary function of the ADT7476AARQZ?
The primary function of the ADT7476AARQZ is to act as a remote thermal controller and voltage monitor, managing system temperatures and fan speeds.
- What is the operating temperature range of the ADT7476AARQZ?
The operating temperature range is -40°C to +125°C.
- How many remote sensor diodes can the ADT7476AARQZ monitor?
The ADT7476AARQZ can monitor up to two remote sensor diodes.
- What interface does the ADT7476AARQZ use for communication?
The ADT7476AARQZ uses the SMBus interface for communication.
- What is the package style of the ADT7476AARQZ?
The package style is QSOP-24.
- Can the ADT7476AARQZ control fan speeds?
Yes, it can control the speed of up to four fans using PWM signals.
- What is the sensing accuracy of the ADT7476AARQZ?
The sensing accuracy is ± 1.5°C.
- Is the ADT7476AARQZ RoHS compliant?
Yes, the ADT7476AARQZ is RoHS compliant.
- What is the maximum supply voltage for the ADT7476AARQZ?
The maximum supply voltage is 3.6 V.
- Does the ADT7476AARQZ provide thermal protection?
Yes, it provides critical thermal protection using the bidirectional THERM pin.
