VI-B04-IX-F1

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DC-DC converters are essential components in a variety of electronic systems. A DC-DC converter translates energy from one voltage level to another, typically from higher levels to lower levels while maintaining the same electrical characteristics. They are designed to provide highly efficient conversions between input and output voltages, creating low power loss and manageable external heat dissipation. The VI-B04-IX-F1 DC-DC converter is a popular choice for many applications due to its versatility.

The VI-B04-IX-F1 is a four-switch flyback DC-DC converter designed to convert nominally 48 V input to a regulated 12 V output at 15 A and efficiency of up to 94%. It is designed to work with high voltage input ranges of 36 – 75 VDC, and features over-voltage, over-current, and short-circuit protection. Additionally, the converter supports operation from zero input and supports cold-start operation. Suitable for critical applications, the converter has a wide operating temperature range and is compliant to various standards, including industrial grade safety standards such as IEC 61000-6-3.

At the heart of the VI-B04-IX-F1 is a buck-boost circuit topology, which utilizes four switch elements to effect a conversion from the input voltage to the output voltage. This topology results in a converter with a wide operating input range and performs with a high level of efficiency across the entire range. Because of this design, the converter can support a wide range voltage conditions, making it suitable for a variety of applications, from industrial automation systems to electronic applications.

The VI-B04-IX-F1 features a 4-switch flyback topology with a fixed frequency (100kHz) oscillator. This design ensures high efficiency across the full range of input voltages, while providing improved EMI performance. The converter also incorporates primary control and secondary control functions. The primary control function seamlessly transitions from Single-Stage Power Factor Control (PFC) mode to a Multi-Stage Constant Current-Mode Control (CCM) mode when the input voltage rises above a defined level, resulting in improved efficiency over traditional control topologies. The secondary control maintains regulation by ensuring an accurate average current limit.

The VI-B04-IX-F1 also offers a wide range of features and safety functions, such as over temperature protection (OTP) and open loop protection (OLP), to protect the converter in the event of abnormal operating conditions. The converter is also equipped with an integrated On/Off control feature, allowing users to turn off the output without cycling the input. This is especially useful for applications where the load needs to be powered down quickly.

The VI-B04-IX-F1 DC-DC converter is an ideal choice for applications requiring high efficiency and a wide input voltage range. With its advantageous features, robust safety functions, and highly integrated design, it is a popular choice for applications ranging from industrial automation systems to electronic equipment. Depending on the specific application, the VI-B04-IX-F1 can be tuned to provide maximum efficiency over a variety of input conditions.

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