Interleaved buck-boost with Half bridge driver IC

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grizedale

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Hello,

Why can't i do a interleaved buck-boost led driver with a half bridge driver IC? (UC3825)
https://www.ti.com/lit/ds/symlink/uc3825.pdf

Vin = 370V and the LED string is 50 white leds in series.

I need interleaved because if i try to do with non-interleaved i get too much switching loss in the fet.

(led current = 0.1 Amp)
 

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