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SN6505B-Q1: Highest output voltage of the push-pull half-wave rectifier

xiang caisheng
Prodigy 10 points
Part Number: SN6505B-Q1

I want to confirm if it is ok that I design for output higher than 30V, like 31V?

If not ok , what limits the output, the internal MOSFET?

  • +1
    TI__Genius 13505 points

    Hello Xiang,

    Thank you for reaching out. The SN6505B-Q1 can be designed for 31V. Your transformer selection will dictate what voltage is on the secondary side. However please note that power has to be conserved, so if the input is 5V @ 1A the output at 31V will be ~160mA (transformer losses not included). 

    As you have noticed the topology in figure 9-11 can be used to help make the most out of your turns ration and quadruple Vin. However, the output will still be limited by power, so the total system will not exceed 5W.

    Best,
    Andrew

  • 0 in reply to Andrew Jackiw
    Prodigy 10 points

    Thank you so much for your kind reply.