DPX-S435-WLA1E

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DPX-S435-WLA1E is a type of integrated electric circuit used in industrial and automotive markets for micro-load power and current sensing. Its application field includes applications related to motor monitoring, smart metering and ultra-low voltage power management. As a sensor with integral circuit and electrical protection, the DPX-S435-WLA1E has been increasingly used in both general and custom-made applications.

The device enables measurement of current ranging from zero up to its full scale range with a single integrated circuit solution, allowing accuracy and power efficiency. Its specified maximum load current range is up to 4.35A and the maximum operating voltage is 5.5V. The DPX-S435-WLA1E features a low-power current phase inductive sensing technology, allowing accuracy and repeatability in measurement even under load cycling and transient load disturbances.

The device features a high common mode rejection ratio, below 10mV, eliminating the risk of spurious measurements and a +14.2MHz bandwidth, enabling fast and efficient acquisition of current signals. In addition, the chip’s proprietary noise reduction technology helps to reduce measurement errors.

The working principle of the DPX-S435-WLA1E is based on a common-mode sense topology with two differential secondary winding and a unique sensing circuit integrated with signal processing logic. This allows the device to sense the average current in the power supply line by means of an electromagnet using an integrated switching power supply. In an alternating current circuit, the device measures the voltage across a pair of differential secondary winding. The switched input voltage across the differential windings produces a straight line reference voltage. This voltage is then scaled down to a usable voltage level, which is used to control the integrated power switch.

The integrated circuit then senses the average current in the line in a linear response, corresponding to the line input voltage. This sensing current is then further processed to determine the average current in the line, which is then converted into an analog signal. Additional measurements can be taken from the output of the device such as the peak current, average current, and voltage, as well as the product of current and voltage which is referenced as power.

In short, the DPX-S435-WLA1E is an integrated solution that offers accurate and reliable solution for low current and power measurement. It has a wide range of applications in industrial and automotive markets where accurate current sensing and power management is required. This device is reliable, accurate, and efficient in its power management, making it an ideal choice for customers who demand precise information in energy management.

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