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Part Number: UCD3138PSFBEVM-027
Other Parts Discussed in Thread: UCD3138, LM7480-Q1, TPS2411, LM7480


I wanted to know

1. The exact use of TPS2411PW in the schematic. It is used for oring purpose but I wanted to know can we implement oring with UCD3138 directly without using another controller in between. 

2. Since I need to implement for higher voltage rating (48V) so one similar controller that can be used is LM7480-Q1. Can you help me out with its implementation and replacement of old controller (TPS2411PW) as the

logic looks different and need an experienced person to help me out with this part.

Thanks and Regards.

  • Hello,

    The oring controller is used for fast turning off/on oring FETS during hot-swap. UCD3138 can't respond that fast. It needs a separate controller.  I think LM7480 is similar to TPS2411, but for more accurate support, you need open a thread for other product line.