LM5575EVAL

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Since its establishment in the year 2002, LM5575EVAL, a compact evaluation module by Texas Instruments, has lived up to its billing as the modular solution to AC/DC & DC/DC converter applications. It boasts an uninterrupted dual-channel capability that is well suited for off-line applications. The use of this high-performance power supply-free evaluation board lies in the development and testing of the power converters and its comprehensive line of functions. At the same time, the LM5575EVAL evaluation kit assists in the easy design and application of off-line switcher solutions.

The core of the LM5575EVAL evaluation board comprises a low-noise high-efficiency buck converter (LM5175) and a low-noise low-noise high-efficiency flyback converter (LM5050). Both of these converters are compact and feature flexible synchronous rectifiers, soft frequency hopping, and active EMI reduction, making them well-suited for tackling the challenges posed by off-line applications. On the other hand, the LM5575EVAL evaluation kit comes with LM3012EVM-4, the quick starter EVM-4, a single-output power IC that can provide a wide range of output currents from 0.5A to 3A. Making use of the high-voltage technology of the integrated LM5050 converters and the evaluation board, it is a perfect fit for applications ranging from 5W to 80W of power.

The universality and adaptability of the LM5575EVAL evaluation board lie in its remarkable features. First and foremost, it is designed as an isolated flyback, which increases efficiency while simultaneously providing protection against AC/DC and DC/DC faults. Furthermore, its two control pins which manage the power supply can be programmed by the user. This is an incredibly useful feature, as it allows the user to adjust the output voltage, current limitation, and output voltage overshoot as required. Finally, the LM5575EVAL evaluation board also features an extensive 6-bit resolution control that ensures the optimum peak-to-peak current regulation and eliminates overshoot. All together, these features make the LM5575EVAL a superior choice for off-line power supply development.

To make use of the core components of the LM5575EVAL evaluation board, one must first understand its working principle. The entire system works on the principles of switching between an on-state and an off-state. The energy stored in the output capacitor (C_OUT) is fed to the load each time the power switches from an off-state to an on-state. When the power supply turns off, the internal circuitry de-energizes the output capacitor, thereby restoring the output voltage. This process is repeated in a loop, generating the desired output rated power.

The core components of the LM5575EVAL evaluation board and its working principle have a wide range of applications. It is a perfect fit for 60W to 80W off-line applications such as PCs, PCs with higher power requirements, industrial applications, and point-of-sale systems. It can handle applications such as universal motors, portable devices, and medical applications, making it an ideal solution for a variety of needs. On top of that, LM5575EVAL’s ability to handle high power levels with high efficiency makes it even more useful for applications that require high power levels.

The LM5575EVAL evaluation board caters for a wide range of needs with its integrated features and design. Its power loss-free synchronous rectifier and low-noise operation make it an ideal solution for applications of AC/DC and DC/DC converters. Its ability to provide high-voltage regulation in a wide range of power levels ensures that it is suitable for a variety of off-line applications. The comprehensive 6-bit resolution control also allows for efficient operation for every power range. All in all, the LM5575EVAL evaluation board is a reliable and powerful solution for off-line applications.

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