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LM7481-Q1: what is the benefit for LM7481-Q1 compare to the LM5060-Q1 and load dump protection design
My customer is wondering what is the benefit if we use LM7481-Q1 compare to the LM5060-Q1 when design a Input Protection with load dump design with 12V and 24V battery ? This TI design shown a great protect perform by LM5060. https://www.ti.com/lit/ug/tiduc41/tiduc41.pdf
Another question is, for a 12V battery system, the load dump is generally clamped at 35V ; in a 24V battery system, the load dump is generally clamped at 60V. If now we are designing a 24V battery project, and plan to using our LED driver LP8860-Q1 which have Input Voltage Operating Range can only up to 48 V(Absolute Maximum Ratings up to 52V) then how to design the LM7481-Q1 protect point ? Set the OV point below 48V ? Any advise will be appreciate.
1. LM7480-Q1 is our latest device which has integrated input reverse polarity protection where as LM5060 is an old device which needs additional circuitry for input reverse polarity protection.
2. Yes, you can protect the down stream circuitry by setting the OVP threshold at less than 48V.
