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Evaluation and Demonstration Boards and Kits

UCC28517EVM is a testing and evaluation board dedicated to the UCC28517, a high efficiency, synchronous, step-down switching regulator that can offer a wide input voltage range from 4V to 25V and a low output voltage range from 0.6V to 17V. In this application field, the board can be used to test and evaluate the UCC28517 in either continuous or discontinuous current mode (CCM and DCM) of operation.

The UCC28517EVM can be used to compare the performance of different switching regulators and to determine the optimal design parameters for a specific application. Additionally, the board can be used to verify the effects of different external control signals on the control of the switching regulator. Finally, the UCC28517EVM can also be used to evaluate the response time of the regulator when subject to different control scenarios.

Working Principle

The UCC28517EVM board supports Eval, EV (Board Enabled) and Bare EV (Back Enclosure) arrangements. In the Eval arrangement, the board\'s main feature is the combination of the regulator\'s continuous conduction mode (CCM) and its pulse width modulation (PWM) capabilities. The board also contains several additional features, such as the ability to make adjustments in its switching frequency and output voltage. In addition, the board contains a driving circuit, which is used to adjust the power supplied to the regulator\'s input transistors and its output transistor.

The EV (Board Enabled) arrangement is a configuration where the external components, including the switching regulator, are incorporated on the board. With this arrangement, the external components can be tested and configured, allowing for a tighter control of the general operation. Additionally, it supports the addition of one or more additional components, such as inductors or capacitors, which can be used to optimize the board\'s performance.

The Bare EV (Back Enclosure) arrangement allows for the use of the UCC28517EVM board in combination with the UCC28517 switching regulator. This arrangement supports the use of the board as a testing platform in which the regulator can be easily evaluated by connecting it directly to the UCC28517EVM. This arrangement also supports the use of external components, such as a diode or a resistor, which can help improve the performance of the regulator.

Conclusion

The UCC28517EVM is a versatile evaluation and demonstration board that is suitable for use in applications ranging from low-voltage AC/DC conversion to high-voltage DC/DC conversion. The board contains features, such as the CCM and PWM capabilities, which allow users to evaluate the regulator in different operating modes. In addition, the board supports the use of the UCC28517 in both Eval and EV configurations, allowing for the easy evaluation of the regulator under different conditions. Finally, the Bare EV configuration allows for the easy testing of the regulator by connecting it directly to the UCC28517EVM board.

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