ADT7475ARQZ-RL7

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Integrating multiple sequences of output operations into one on-chip controller, the ADT7475ARQZ-RL7 thermal management component is a specialized power management integrated circuit that provides reliable thermal management in portable and embedded applications.

ADT7475ARQZ-RL7 is part of the ADT7475 family by Analog Devices and is designed to safely monitor power devices and line voltages, provide power sequenced thermal protection and act as a thermal management switch.

The component uses high accuracy temperature measurements to monitor the on-chip temperature for over-temperature fault protection, converting the read analog temperature into a digital format that can facilitate the smooth operation of power management devices. This process helps to extend the battery life of mobile devices and prevent hardware failure.

The ADT7475ARQZ-RL7 temperature measurement solution employs a dual-mode architecture that takes into account environmental temperature corresponding to the temperature on the chip, with positive and negative voltage rails that provide the flexibility needed to protect power devices. It also includes a number of configurable options, such as selectable measurements of thermally sensitive components, adjustable hysteresis and cold temperature compensation to ensure optimized accuracy of temperature readings.

As a PMIC (Power Management Integrated Circuit), ADT7475ARQZ-RL7 helps to provide thermal protection against electrical load outages, momentary power drops, shutdowns and other electro-thermal events. It applies CSP and OTP protocols to identify abnormal thermal conditions and then responds to these conditions by de-energizing the power supply.

The working principles of the component are based on the application of N-channel MOSFETs, detecting when the chip reaches a temperature threshold where a fault may arise (by monitoring the thermal conditions on-chip), and then reacting by cutting off the power source before the device overheats.

ADT7475ARQZ-RL7 provides reliable thermal protection and monitoring in mobile devices, consumer electronics, automotive and industrial embedded applications. It is capable of responding quickly to thermal conditions, monitoring temperature with a ± 0.5 °C accuracy and then shut down the power supply before the device reaches its predefined temperature limit.

The component\'s design, from the high accuracy temperature measurement module to the wide operating temperature, offers consistent performance at low power, making it suitable for a variety of high performance applications, ranging from wireless communication apps to automotive applications.

ADT7475ARQZ-RL7 is designed as a low power, cost effective solution for thermal management in portable and embedded applications. Despite its small package size and low power requirements, it manages to deliver accurate temperature readings, and with its wide temperature range, it can meet the needs of different applications and operating environments.

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