EA4455YH

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The EA4455YH is a comprehensive evaluation board developed for off-line DC/DC and AC/DC SMPS applications. This evaluation board features a fully integrated switching power supply with high operating efficiency, high reliability and wide input voltage range. The board features two innovative components: a buck converter optimized for controlling 4.0 A load current and a two-phase bipolar power converter.

The first component of the EA4455YH evaluation board is the buck converter. This buck converter is designed to provide a stable output voltage of up to 4.0 A and regulate the input voltage at the load point. As a result, it efficiently controls the load current and reduces power losses due to short circuits. The buck converter output voltage is adjustable with a range of 0.8V to 20V. Furthermore, it has a minimum On/Off time of 1µs.

The other component of the EA4455YH evaluation board is a two-phase bipolar power converter. This power converter provides a fast transient response in order to achieve an output voltage level that is accurately matched to the load current. It also features a voltage feed-forward control scheme that optimizes the voltage regulation at the load point. The two-phase bipolar power converter provides a high efficiency, ranging from 85% to 95%.

The EA4455YH evaluation board is designed for a wide variety of DC/DC and AC/DC SMPS applications. Its high performance, reliable operation, wide input voltage range and increased efficiency make it suitable for a variety of applications, such as LED lighting, power supplies, inverters and UPS systems.

The EA4455YH evaluation board also features a highly efficient PFC controller that meets the requirements of Energy Star, CEC and UL standards. This PFC controller is optimized to ensure that input voltage is always within a safe range. It also uses advanced loop compensation techniques to ensure a fast transient response, eliminating power surges and reducing the risk of harm to the system.

In addition, the EA4455YH evaluation board features a comprehensive safety design. This board includes over-voltage protection, under-voltage lockout, overtemperature protection, current limiting, frequency foldback, and over-current shutoff. These safety features protect the system against any potential short circuit or other destructive scenarios. This can help to improve long-term reliability and safety of the system operation.

The EA4455YH evaluation board is designed to give engineers and technicians an easy and reliable way of evaluating and troubleshooting off-line SMPS designs. Its innovative design and features make it suitable for a wide range of applications. Its high efficiency, high reliability and wide operating range make it an ideal choice for DC/DC and AC/DC SMPS application.

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