ADT7490ARQZ-REEL7

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ADT7490ARQZ-REEL7 Application Field and Working Principle

PMIC (Power Management ICs) play an essential role in managing the power supply of electronics devices. They monitor and control both the power consumption and environmental temperature of the device. The ADT7490ARQZ-REEL7 is a hot-swappable PMIC thermal management device that provides an efficient and cost-effective solution for controlling and monitoring the board temperature. Its application field includes synchronized control of power consumption and temperature during system boot-up, operational over-temperature protection, independent thermal control, and fan speed control.

Working Principle

The ADT7490ARQZ-REEL7 PMIC uses temperature sensing technology to accurately measure the board temperature. It provides an integrated ambient temperature sensor that senses the temperature of its environment and an on-chip CPU temperature sensor that measures the temperature of surrounding chips. The combination of these two sensors allows the device to make real-time adjustments to the speed of the cooling fan to keep the temperature within the desired range. The ASIC also contains various signals and control functions, including hysteresis compensation and make-break point setting, facilitating the control of power components such as VR and FETs, as well as different fan speed control.

PWM Outputs and Digital Control Signals

The ADT7490ARQZ-REEL7 PMIC supports two PWM outputs and four control signals. The PWM outputs can be used to control the speed of the fan, allowing for accurate control of the fan speed. The control signals, on the other hand, provide the user with a variety of functions, such as enabling or disabling the fan, adjusting the current speed of the fan, and setting the fan speed threshold.

Protection and RoHS Compliance

The protection features of the ADT7490ARQZ-REEL7 PMIC excel in protecting the electrical safety of the system and the fan from overload, over voltage, and over temperature. The chip also comes with RoHS compliance, ensuring that no hazardous materials are used in the manufacturing of the device. The RoHS compliant design of the device also enables it to be safely used in medical equipment and industrial automation equipment.

Applications

The ADT7490ARQZ-REEL7 PMIC is suitable for use in many applications, such as embedded systems, industrial automation equipment, server and storage systems, and medical equipment. Its efficient and cost-effective design makes it a perfect solution for any application that requires accurate control over both power consumption and temperature.

Conclusion

The ADT7490ARQZ-REEL7 PMIC is an excellent thermal management device designed to provide a reliable, cost-effective, and efficient solution for controlling temperature and power consumption. With its integrated ambient and CPU temperature sensors, built-in control functions, and robust protection features, this device is ideal for embedded systems, medical equipment, industrial automation equipment, and server or storage systems.

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