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Shown here in this functional block diagram, the NCP51561 supports 5,000 V inductive galvanic isolation between input and output, as well as 1,500 V functional isolation between output A and output B. This enhances the human safety of the product in high-power applications. The NCP51561 ANB input enables either single-input or dual-input; this will be discussed in more detail later in the training. onsemi offers multiple trim options for the enable/disable input pin, as well as the different undervoltage lockout voltage levels. The trim options correlate to different part numbers which will be covered in the next slide. A trim option means the designer placed multiple fuse-blow resistors in exact circuit locations on the die, and during the final test program on the automatic test equipment, the designer executed different vector sets or recipes for blowing specific fuses, resulting in different functional behaviors based on which fuses were purposely blown.
