Overview
The ADT7467ARQZ, produced by onsemi, is a dbCOOL remote thermal monitor and multiple PWM fan controller. This component is designed for noise-sensitive or power-sensitive applications, offering advanced thermal monitoring and fan control capabilities. It integrates a temperature-to-digital converter, fan speed counters, and performance monitoring features, making it suitable for a variety of system cooling solutions.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 3.0 | 3.3 | 5.5 | V |
| Supply Current, ICC (Interface Inactive, ADC Active) | - | - | 20 | mA |
| Internal Clock Frequency (VCC = 3.3 V) | 81 | 90 | 99 | kHz |
| Local Sensor Accuracy (0°C ≤ TA ≤ 70°C, VCC = 3.3 V) | - | - | ±1.5 | °C |
| Output Low Voltage, VOL (IOUT = -8.0 mA, VCC = 3.3 V) | - | - | 0.4 | V |
| High Level Output Current, IOH (VOUT = VCC - 0.1) | - | - | 1.0 | μA |
Key Features
- Remote thermal monitoring and multiple PWM fan control for up to three fans.
- Temperature-to-digital converter with high accuracy.
- Fan speed counters and performance monitoring.
- Acoustic enhancement control for noise reduction.
- SMBus interface for communication with a master controller.
- Open-drain digital outputs for PWM and SMBALERT signals.
- Support for high and low frequency fan drives.
Applications
The ADT7467ARQZ is suitable for various applications requiring precise thermal management and fan control, such as:
- Noise-sensitive systems where quiet operation is crucial.
- Power-sensitive systems where energy efficiency is a priority.
- Server and data center cooling solutions.
- High-performance computing systems.
- Industrial control systems.
Q & A
- What is the primary function of the ADT7467ARQZ?
The ADT7467ARQZ is a remote thermal monitor and multiple PWM fan controller. - What is the supply voltage range for the ADT7467ARQZ?
The supply voltage range is from 3.0 V to 5.5 V. - How many fans can the ADT7467ARQZ control?
The ADT7467ARQZ can control up to three fans. - What communication interface does the ADT7467ARQZ use?
The ADT7467ARQZ uses the SMBus interface. - What is the accuracy of the local sensor?
The local sensor accuracy is ±1.5°C over the temperature range of 0°C to 70°C. - Can the ADT7467ARQZ operate in high and low frequency modes?
Yes, the ADT7467ARQZ supports both high and low frequency fan drives. - What is the typical pull-up resistance required for PWM outputs?
The typical pull-up resistance required for PWM outputs is 10 kΩ. - How does the ADT7467ARQZ handle acoustic noise reduction?
The ADT7467ARQZ includes acoustic enhancement control features to reduce noise. - What is the maximum current sink for open-drain digital outputs?
The maximum current sink for open-drain digital outputs is 8.0 mA. - Is the ADT7467ARQZ RoHS compliant?
Yes, the ADT7467ARQZ is RoHS compliant.
