RT9712CGF

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PMIC (Power Distribution Switches, Load Drivers) is a digital circuit or analog device that provides power control for systems and components. The RT9712CGF is a two-channel primary side switch solution, featuring high accuracy current sensing, precision linear current regulation, over-temperature envelope detection, as well as excellent efficiency and safety. It is mainly used in computer, server, industrial PC and embedded systems.

The RT9712CGF preferentially serves two sensitive loads to various power sources, such as AC adapter, battery or input power source, without complex feedback and system control. While these multiple power sources are available, the device can select the right one to ensure uninterrupted GPIOR (general purpose input/output) system and continuous operation. The integral current sensing unit enables the RT9712CGF to provide precise and accurate output current management. The integrative over-temperature envelope detection and current regulation are able to provide excellent operational protection under any circumstances.

The RT9712CGF is designed to switch two power sources in synchronism and features over-voltage protection, under-voltage protection, over-temperature protection, and the power saving mode. Each output is associated with a linear current regulator to ensure precise and accurate output current regulation. The excellent safety operation combined with low standby current makes this switch an ideal choice for systems to provide reliable power control.

In terms of working principle, the RT9712CGF consists of power switches, current sensors, gate drivers, analog comparators, and a power-on reset circuit. The power switches are used to switch the power source and connect any of the two power sources to their correspondent outputs. The current sensors detect the output current and the gate drivers are used to switch the power switches on and off. The analog comparators compare the set level with the sequencing logic, while the power-on reset circuit is responsible for the setting of the voltage sequencing logic.

To sum up, the RT9712CGF is an easy-to-use, low-power, cost-effective, and highly integrated solution for primary-side switch applications. It is ideal for battery-powered portable devices, industrial PCs, laptops and embedded systems. Its integration design and outstanding performance provides a reliable, efficient, and robust solution for system designers. This device is able to automatically switch between two power sources, protecting the system from over-voltage and under-voltage, helping conserve energy and offering reliable system operation. It is a great choice for those seeking power control solutions.

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