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Part Number: TPS56C215
Let me ask about overvoltage protection(OVP) since I can't find the detail on the datasheet.1) It looks to have two level of the overvoltage detection, out-of-bounds(OOB) at +8% and OVP at +21%, is it correct?2) The datasheet says that it operates in FPWM mode only by turning on the LS-FET during the OOB. How does it work when the output hit OVP level?3) If the OVP shuts down the switching, does it have a wait time and hiccup time such as UVP?
Thanks in advance.S.Sawamoto
Could anyone help this?
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In reply to Shinya Sawamoto:
For first question, it is yes.
For OVP , it will be discharged with a discharge circuit at SW pin, and both HS/LS will turned off at that time, some description in 7.3.12.
In reply to Yuchang Zhang:
Thanks for your answer.Now I understood the OVP behavior.One more question remained regarding 3), is it recovered automatically or latched off? (I guess it may have the same sequence as UVP.)
Hi Sawamoto, Yes, it is automatically recovered like UVP, non-latch.
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