UCC29950EVM-631

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The UCC29950EVM-631 Evaluation Board demonstrates the performance and capabilities of the latest series of the UCC29950 Resonant Mode System-in-Package controllers. It is commonly used for cost effective power supply designs that integrate the different components of a power supply circuit into one compact solution. This evaluation board is suitable for evaluating the working principle of the UCC29950 controller and is primarily used for DC/DC and AC/DC (off-line) switch mode power supply (SMPS) applications.

The UCC29950EVM-631 evaluation board is designed to create a comprehensive evaluation platform with basic functionality and features of the UCC29950. It incorporates a single-stage LLC (Interleaved) topology as an example using UCC29950 System-in-Package device. The board design and component selection offer unrivaled performance in terms of efficiency and operational stability for high performance applications. It also provides a pre-biased power supply application as an example to evaluate UCC29950 features.

The UCC29950EVM-631 board features a buck output of 12V at 1.6A, an input voltage of 12V, and a standby output of 3.3V at 0.15A. It utilizes the UCC29950 in a few different ways to optimize circuit performance. The UCC29950 is used as a PFC controller for maximum power efficiency, operating at frequencies from 200 kHz to 600 kHz for optimum efficiency. It is also used as a Resonant Mode Controller to ensure light load efficiency and system reliability. An additional UCC29950SIP is added to the efficiency controller with an integrated power switch for current shaping, load regulation, and output short-circuit protection.

The performance of the UCC29950EVM-631 evaluation board for DC/DC and AC/DC (off-line) SMPS applications is further enhanced by incorporating capacitors for optimal EMI emissions, snubber networks for High-Frequency Injection (HFI) mitigation, and high current LEDs for basic protection, among other features. The integrated components on the board also includes an input voltage selector, power-on / power-off switches, and a potentiometer to adjust the PFC boost voltage.

In conclusion, the UCC29950EVM-631 Evaluation Board provides a cost-effective, reliable solution for high performance DC/DC and AC/DC (off-line) SMPS designs. It is optimized for use in various applications, allowing for maximum efficiency and stability. A wide selection of components can be integrated into the design, while the highly flexible platform allows the user to adjust the board to meet their specific needs. This versatile platform offers a powerful, user-friendly evaluation solution for a wide variety of applications.

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