FI2D004R9

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Part Status:	Active

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The FI2D004R9 application field and working principle have been well documented in literature. The FI2D004R9 voltage controlled current source is a very efficient device, with modern features and wide-range provide excellent performance and is available in four versions. The FI2D004R9 is a high-performance, space-saving, self-contained, open source, and adjustable voltage-controlled current source. It has an adjustable regulated source current of 4 to 200mA and a control input voltage from 0V to 3.6V. It features low peak over-voltage capability and short-circuit protection, enabling it to regulate current levels from a low of 4mA to a high of 200mA. The FI2D004R9 has an output current of up to 5A and can withstand an input potential up to 3.6V, allowing it to handle both hard and soft switching power demands.In addition to a high-efficiency current source, FI2D004R9 provides other features such as short circuit protection and over-voltage protection. The short-circuit protection feature prevents the possibility of burning out the device by short-circuiting the output. The over-voltage protection feature helps prevent the voltage from exceeding the limit and causing damage to the device.The working principle of the FI2D004R9 can be understood by the following. The output current is regulated by a voltage-controlled current source based on the amount of voltage applied to the control input. When under zero voltage, the current output is zero; when the voltage applied to the output is between zero and 2V, the current output is proportional to the input voltage. Above 2V, the proportion remains but the output current is clamped by a maximum threshold.The peak efficiency of FI2D004R9 is 95%, and it has a fast response time of less than 50 microseconds. This helps to maintain constant and accurate control over the current output, even when there are sudden changes in the input voltage. The high efficiency helps to reduce cooling requirements, allowing for better device longevity and greater reliability.The FI2D004R9 is suitable for use in a wide range of applications such as automotive voltage regulation, industrial power conditioners, adjustable DC power supplies, battery chargers and UPS systems, among others. The device has a wide operating temperature range, and is suitable for both indoor and outdoor use. Overall, the FI2D004R9 is an excellent choice for various voltage-controlled current source applications. With its high efficiency, wide range of input voltage, high output current, and excellent operation, it is an ideal solution for the mentioned applications.

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