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UC1843: UVLO ambiguity in datasheet.

Part Number: UC1843

Datasheet [SLUS223E –APRIL 1997–REVISED JANUARY 2017] quotes UVLO values listed against the various part numbers, but I  cannot tell which row corresponds to the UC1843. The row titles are ;

Row-1 = UCx842/4 UC184x  and UC284x. 

Row-2 = UCx843/5 UC384x

Row-3 = UCx843/5

The trouble is that I can match UC1843 into all three rows so cannot tell which row is correct, have I missed something?

Row-1 UC184x could be UC1843.

Row-2 UCx843/5 could be UC1843.

Row-3 UCx843/5 could also be UC1843.

  • Hey Ted,

    I agree that this part of the datasheet is slightly confusing.

    You have to pay attention to the second part of that block that additionally specifies the part.

    Left to right shows most generic to least generic.

    Thus Row-3 will be the UC1843.

    Thanks,

    Daniel