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Power Interface Forum
Error in LM5067QuickStartCalculator2.0
The timer setting calculation of the calculator seems to be seriously flawed. With a 3A current limit, 90W power limit, 106uF load cap and -72V in, a time of 2 ms was displayed.
A Spice simulation with a similar LT part with a PWL constant power limiter added, produced a 3.8 ms current/power limiting time.
With the LM5067-1 this will lead to a fatal error, while the LM5067-2 may manage at the second attempt.
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