VIPER53SP-E

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Power management integrated circuits (PMICs) are widely used in various fields, such as AC/DC converters, offline switchers, and many more. The VIPER53SP-E is one such device, designed for application in such fields. It is a multi-mode phase-shifted PWM controller designed for industrial, computing, and communication applications.

The VIPER53SP-E IC is a highly integrated device that combines PWM conversion with current mode control. It contains an integrated voltage regulator and an array of protection, including fault monitoring and current/voltage sensing. The device also includes a unique set of protection features, such as short-circuit protection, short-cycle protection, and over-current protection. This makes it suitable for use in a variety of applications, including regulated output, phase-shifted control, as well as wireless and telecom applications.

The VIPER53SP-E working principle is achieved through the four key components: a dual-loop current loop, a PWM frequency division network, an EMI filter, and an adjustable, high-efficiency current sense amplifier. The current loop contains an error amplifier that sets the reference voltage at the output of the device, which is buffered by an error amplifier and a resistor (R1) connected in series. The error voltage is then converted by a dual-loop PWM converter, which divides the total frequency and amplification of the outputted signals. This system also contains a range of control parameters, which can be programmed via an attached digital control system to ensure accuracy, reliability, and precision.

The VIPER53SP-E also features an EMI filter, which can monitor and filter out any high-frequency interference that could cause errors in the system. This filter is connected to the error amplifier and the PWM converter, offering additional protection and performance optimization. Last, the adjustable, high-efficiency current sense amplifier is designed to accurately measure current consumption across the load. This builds upon the working principle of the VIPER53SP-E and gives it an even higher level of accuracy and control.

The combination of these four elements makes the VIPER53SP-E an ideal choice for industrial, computing, and telecommunication applications with high quality requirements. The device can run multiple modes with no external components, and it offers efficient, reliable, and precise power supply control and protection. Thus, this device provides a good example of a multi-mode phase-shifted PWM controller, suitable for applications which require high output current control, current mode protection, and EMI hardening. This makes it an ideal choice for AC/DC converters, offline switchers, and many other applications.

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