TCK402G,LF

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A PMIC – Power Distribution Switches, Load Drivers, is a chip that supplies power to multiple components or subsystems with higher current and/or voltage than a regular integrated circuit. They are used in applications including automotive, communication, industrial, medical, and consumer applications. This article will discuss the TCK402G, a Power Distribution Switch, Load Driver, and its application field and working principle.

The TCK402G is a Power Distribution Switch/Load Driver featuring a high-side, low-side, power ground and ground switch up to 20V, up to 1A source/sink current. The voltage rating and source/sink current are configurable depending on the application. The features of the TCK402G include the ability to independently control each load, detect the load current, soft start control for smooth supply start-up, and an SOSA (Soft-Shutdown) control for efficient power saving.

The application field of the TCK402G could be broadly categorized into two categories: Automotive and Industrial. The TCK402G is used in Automotive applications such as automotive ECUs, OBDs, and power steering. It is also used in Industrial applications including machines and robotics, security systems, solar and wind power plants, and medical equipment.

The working principle of the TCK402G is centered around two key concepts: the high-side and low-side voltage. The high-side voltage is connected to +VS, while the low-side voltage is connected to ground. When a positive voltage is applied to the positive terminal of the TCK402G, it will drive a current to the load. When the opposite happens, the reverse current is detected and sent to the low-side. This ensures that the output voltage of the TCK402G is always within the range of the high-side and low-side.

The TCK402G also integrates a Soft-Start control for smooth burst of current during power on, and a Soft-Shutdown control which is a current saving mechanism to reduce the power consumption when powering off the device. The load conditions, source/sink current, and other parameters can be monitored with a dedicated diagnostic pin.

In conclusion, the TCK402G is a Power Distribution Switch/Load Driver built to provide power to multiple components and subsystems, and has a wide application field especially in automotive and industrial applications. The TCK402G is equipped with a range of features, such as high and low side control, soft start/shutdown, and current and voltage monitoring. All these features support the TCK402G in providing efficient, cost-effective, and reliable power to its connected components.

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