SI32260CQS20SL0EVB

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Evaluation and Demonstration Boards and Kits are widely used in the Electronic industry as a development platform for evaluating or demonstrating complex and powerful components. SI32260CQS20SL0EVB is one of them. It is a high performance, fully-integrated three-phase sinusoidal branch current sensing interface IC that provides all the active and passive components for sensing the current of a single-phase AC-DC converter in a complete AC branch. It is engineered to reduce the complexity and improve the scalability and reliability of three-phase power systems.

The IC houses a power-efficient, low-distortion, Class-D amplifier, along with a wide range of signal processing functions, such as high-frequency sinusoidal waveform detection and demodulation, curve fitting and peak detection, and digital signal interface. In addition, the IC includes an isolated signal conditioning function to eliminate common-mode voltage interference.

The built-in standard digital interface helps increase communication speed with control devices while reducing the complexity of external circuitry. It also serves as a convenient and powerful connection bridge between the digital and analog worlds, enabling easy-to-use communication between remote controllers and power systems.

SI32260CQS20SL0EVB provides greatly improved performance and versatility, and is perfect for use in diverse applications, such as motor control, power quality monitoring, peak power tracking, real-time current monitoring, and maximum power point tracking. It also supports functions such as power line fault detection and short-circuit protection.

The IC uses a patented, highly reliable analog routing topology, which is composed of four power devices, ten resistors, two capacitors, a high-voltage transistor, and a low-voltage emitter-coupled logic integrated circuit. It also provides a precise feedback signal for current monitoring and control, and can deliver accurate and reliable measurements of current up to 30 MHz.

The working principle of the SI32260CQS20SL0EVB is fairly straightforward. First, the input current is sensed by the four power devices and fed to the 10 resistors, which form an attenuator that reduces the voltage of the signal. The attenuated signal is then filtered by the two capacitors, and amplified by the high-voltage transistor. The amplified signal is then converted to digital data by the low-voltage emitter-coupled logic integrated circuit, and the resulting digital data is sent to the digital output interface.

The digital output interface contains three pins dedicated to signaling interface. The first pin is the interrupt pin, which provides an asynchronous signal to notify the system that the IC finished the data acquisition and processing. The second pin is the data ready pin, which indicates when the IC is ready to transmit data over the serial interface. The third pin is the serial interface, which supports standard 8-bit UART or SPI protocol. Through these pins, the IC can be easily attached to external controllers, such as microcontrollers or FPGAs.

Overall, the SI32260CQS20SL0EVB offers superior performance, scalability, and reliability when compared to traditional systems. It is an ideal solution for applications requiring accurate current sensing and monitoring, and is available in a complete Evaluation and Demonstration Board and Kit package for rapid development.

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