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UCC256403: Realization of ACDC converter

Part Number: UCC256403
Other Parts Discussed in Thread: UCC28950, UCC28070, UCC28180

Hi support team,
I am looking for a 2-output ACDC converter with the following specifications.

ACDC converter specifications
・AC Input Voltage Range: 85 to 264V
・DC Output 1: 60V, 10A
・DC Output 2: 12V, 30A
・Isolated : Yes
・Application: Large capacity charger

In the related question, I am considering placing two UCC28950/1 after the PFC pre-regulator UCC28070 that generates DC390V.
However, since I want to use a simple device, I am considering generating DC390V with UCC28180 and placing two UCC25640x systems in the latter stage.

Is UCC25640x suitable for this isolated DCDC converter?

Please let me know if there is another suitable IC.

Regards,
Dice-K

  • Hello Dice-K,


    From the info you've provided, you should be able to use the UCC28180 with two UCC25640x to power your application. Keep in mind that with your ~1kW application, the boost inductor will be larger and the output caps will need to handle higher ripple by using the UCC28180 than would be the case if you used the interleaved output of the UCC28070.