RT9728AHZQW

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PMIC (Power Management ICs) products are widely used in applications that require precise power regulation and accurate voltage control. Popular PMIC products include power distribution switches, load drivers, voltage regulators/regulators, voltage sequencers/controllers, and other power management components that are deployed in a wide range of applications. Incorporating advanced power regulation and control technologies, PMICs are capable of satisfying a variety of needs in a variety of markets. This article will focus on RT9728AHZQW application field and working principle, a type of Power Distribution Switches and Load Drivers from the RT9728AHZQW product family of PMICs.

RT9728AHZQW is a multi-purpose, low quiescent current, high efficiency power switch that is designed for use in power distribution, load driving, and other power management applications. It offers protection for EMF voltage/current spikes, thermal shutoff, over-current protection, and current limiting, among other safety features. It’s available in a PQFP-44L package, and has an operating temperature range of 0 to +125℃.

The RT9728AHZQW works by controlling the on/off states of two N-channel MOSFETs, which are used to switch power and ground in applications such as main power supply, logic power, and LED driving. Dual N-channel MOSFETs provide low on-resistance, ensuring higher efficiency and power dissipation. The RT9728AHZQW also allows a user to set a dual input voltage of two external power supplies, one high and one low. For example, a 6.6V power supply can be used as the high voltage and a 3.3V power supply as the low voltage, with adjustable internal power on and off times respectively.

It is also capable of supplying up to 8A of continuous current, with over-current protection and current limit protection when the output current is higher than 8A. Additionally, the RT9728AHZQW has an over-temperature protection circuit that automatically shuts off when the internal temperature exceeds 150°C. This provides a reliable protection for over-temperature conditions that may lead to damage to the device.

The RT9728AHZQW is compatible with a variety of integrated circuits and other PMICs, making it suitable for use in a wide range of applications. Such applications include automotive, satellite and military aircraft power distributions, industrial machine control and monitoring, Energy Efficiency Management System (EEMS) and LED lighting. In LED lighting, RT9728AHZQW can be used for LED dimming control and color temperature adjustment.

To summarize, the RT9728AHZQW is a versatile power distribution switch and load driver that is ideal for use in PMIC applications, due to its low quiescent current, high efficiency, and ability to provide protection features such as EMF voltage/current protection, thermal shutoff, over-current protection, and current limiting. Its compatibility with a variety of integrated circuits and PMICs allows it to be utilized in many applications, including automotive, satellite, industrial and military aircraft power distributions, and LED lighting.

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