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UCC256301: UCC256301 vs UCC25640x

Kai Hsiao
Guru 12675 points
Part Number: UCC256301
Other Parts Discussed in Thread: UCC256404

Hi Sir 

If new project ,could we use UCC25640x to instead UCC256301 ?

But I don't see UCC256401 on TI website ? Could you help to double confirm ,which P/N could instead UCC256301

Thanks

  • 0
    TI__Mastermind 26225 points

    Hi Kai,

    UCC256404 should work well in place of UCC256301. UCC256404 will have a different BLK start threshold than UCC256301 but contains many of the same features as UCC256301 such as HV startup, X cap discharge, etc. 

    Best Regards,

    Ben Lough

  • 0 in reply to Benjamin Lough
    Guru 12675 points

    Hi Benjamin 

    Do you have comparison table between UCC256301 and UCC256404 ?

    Thanks

  • 0 in reply to Kai Hsiao
    TI__Mastermind 26225 points

    Hi Kai,

    Here is comparison table:

      UCC256301 UCC256404
    Burst Mode Algorithm •15 pulses in each burst packets •40 pulses in each burst packets
    •Burst soft-on and soft off
    •User option to disable burst mode
    •User adjustable burst mode hysteresis
    HV Startup Yes Yes
    X-Cap Discharge Yes Yes
    Minimal Detectable Slew Rate 1 V/ns 0.1 V/ns
    ZCS Protection Yes Yes
    BLK Start 3.05 V 1 V
    BLK Stop 0.87 V 0.9 V
    RVCC 12 V 13V
    OCP 1/2/3 4V/0.84V/0.64V 4V/0.6V/0.43V

    Best Regards,

    Ben Lough