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LMZ10505TZE-ADJ Help

Patrick Avenard
Prodigy 10 points

Hello

I have two questions:
 
1) Can you validate electric scheme with Ccomp=30pF and Rcomp=0 ohm in the loop (Data sheet page 3)
I have a important noise pulse frequency on the FB signal (pin 5)
 
2) Can you tell me how many ON / OFF is guaranteed
I have a  test with 6000 ON/OFF in 2 hours.

  • 0
    TI__Mastermind 19901 points

    Hello Patrick ,

    Could you provide more details on item 1?
    The compensation values Rcomp and Ccomp depend on the operating conditions and output capacitor value and ESR. See table 2 of the datasheet on page 12. Also, you can utilize the online simulation tool. See the WEBENCH panel on the right hand side on the product folder web page: http://www.ti.com/product/lmz10505
    You can enter your specifications and create a design with the recommended BOM and compensation values.

    On item 2, I am not aware of any limit on on/off cycles. As long as the conditions meet the operating ratings of the part, the test seem ok.

    Regards,
    Denislav