NCP5217AGEVB

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The NCP5217AGEVB evaluation board is suitable for a wide range of off-line DC/DC and AC/DC switch mode power supply (SMPS) applications. It features an integrated NCP5217 750mA/5V synchronous buck controller with EMI filter including high speed input ripple rejection, output voltage tracking and fault protection comparators. The board operates from a wide range input voltage range of up to 400V, is available in a small 3x4mm QFN-24 package, and has a no load start up current of only 105µA.

The NCP5217AGEVB can operate in either discontinuous conduction mode (DCM) or continuous conduction mode (CCM) and has an adjustable frequency range of 50kHz to 1MHz. It also features soft-start and current limit protection, which can be configured to prevent the device from exceeding the specified current limits. The evaluation board also includes an EMI filter which allows the design to meet EMC standards.

The NCP5217AGEVB evaluation board features an adjustable output voltage of up to 27V, and can be used to design a wide variety of DC/DC and AC/DC SMPS designs. The board has adjustable under voltage protection, over voltage protection, over current protection, and over temperature protection, all of which are integrated on the board for easy monitoring and control. The board also provides over current and over temperature protection to ensure the safety of the design.

The NCP5217AGEVB features a two-stage power conversion structure, consisting of a high-current low-frequency DC/DC converter and a high-frequency AC/DC converter. In the first stage, the DC/DC converter steps down the input voltage to the desired output voltage, typically 5V. The second stage then takes this 5V output and further steps down the voltage and is used to generate the desired SMPS design. This two-stage structure eliminates the need for a bulky magnetic core element, thus allowing designers to create smaller, more power-efficient designs.

The board features an integrated high speed input ripple rejection feature which enables SMPS designs with high input ripple rejection. This feature helps to provide cleaner power with minimal noise and ripple. The board also includes an adjustable fault protection feature which allows users to configure the fault protection behaviour to their specific application requirements. In addition, the board features wide output voltage tracking, which allows the user to track the output voltage of the SMPS correctly without needing to measure the signal at the outputs.

Overall, the NCP5217AGEVB evaluation board is a great tool for designing a wide variety of DC/DC and AC/DC SMPS designs. Its integrated protection features ensure the safety of the design, while its adjustable features provide flexibility and control. With its small size and wide input voltage range, the board is capable of powering a variety of applications, and its high speed input ripple rejection feature ensures clean power without noise and ripple.

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