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TPS92001

Other Parts Discussed in Thread: TPS92001

Hi,

 

I am interesting in TPS92001 product for non-isolation 230V application. Where I can find 230V reference design, calculation....

Best regards,

Darko

  • Darko,

    We have some 230V reference designs which are not yet published externally (www.ti.com).  Can you provide a few more details on what you are trying to accomplish and I can look for a suitable starting point?

    Basic info needed:

    • What type of LED lighting application are you targeting - light bulb replacement, luminaire, other?
    • What type of output power are you trying to achieve?
    • Have you selected the LEDs yet?  If so, can you share the part numbers and intended configuration (# in series)?
    • 230V input is mentioned.  Is this only for high line voltage applications?
    • Is dimming required?  If so, is it TRIAC or other?
    • Other key target parameters:
      • Power Factor
      • Efficiency
      • etc

    Best regards,

    John

  • Thanks dear John for reply.

    Ok I need to make T5 led tube. I have 13 pcs in series of E12PW6C led (or similar 1W led), which has 3.5V and 350mA, so need 3.5V x 13 and 350mA. It need to operate on 230V, not need dimmerable option, simple only. So space saving option. Other parameters are not important power factor, efficiency...

    It will be good qty about 1000pcs for begin, so your chip is cheap and not too much components, at first not need too big inductance, some solutions need 4.7mH with current of 400mA, so it is big to fit in T5 tube

    Darko

  • Darko,

    We have done a 230V design based on the TPS92001.  Our design included dimming capability, but removing the components which support dimming is pretty straight forward.

    In this design we were targeting about 20 LEDs at 160mA (~11W), but it can be modified for fewer LEDs and more current.  The dimming circuitry consists of basically the components inside the dashed line.  In other words, a non-dimming version would have significantly fewer components.

     

    Regards,

    John

     

  • Dear John,

    Thank you for your help. Can you send me may be on email ilidarko@yahoo.com this schematic cause when I save this one it is small so when zoom not see components value. So according to your story I can remove all components under dashed line, cause I really not need dimming for this project. Can you also give me instruction about correction to 13pcs of LED and current of 350mA. Need at first to recalculate inductance value....

     

    Darko