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PTH08T220W transient response

Jeff Jobs
Prodigy 10 points
Other Parts Discussed in Thread: PTH08T220W

I'm seeing worst than expected transient response with PTH08T220W and type B bulk capacitors. After reviewing the spec, I'm wondering if I have the optimum turbotrans resistor value. I have a 470uF cap with 20% tolerance. What is the optimal turbotrans resistor value? Is it appropriate to use 470uF in the formula, or should it be 80% of 470?

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    TI__Mastermind 38230 points

    Jeff:

     

    I have several questions concerning the output capacitance , ESR and turbo trans resistor selection.

    1. A 20% capacitor can imply a aluminum type capacitor.Aluminum capacitors must not be used  with turbo trans function and any turbo trans resistor.

     2. What is the ESR of the output capacitor  , part number and type of polarized capacitor?

    3. What is the  turbo  trans resistor and value ?

    4. How are  the remote sense functions connected to their respective bus?

    Regards

    Tom

    My email address is tguerin@ti.com for additional discussions on this  question.  Please send my your contact information