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Does the LM5068 require supply line filtering to eliminate voltage spikes from entering the VDD supply pin?

April 26, 2017Eliminate entering filtering line lm5068 require spikes supply VDD voltage

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Does the LM5068 require supply line filtering to eliminate voltage spikes from entering the VDD supply pin?

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Yes. The LM5068 includes an internal bias regulator that can be damaged if input transients exceed 100V. An RC filter between the line input and VDD pin is recommended to ensure any ringing attributed to load current interruptions through the supply line inductance does not exceed the 100V absolute maximum rating specification.