• State TI Thinks Resolved
  • Locked Locked
  • Replies 2 replies
  • Answers 1 answer
  • Subscribers 40 subscribers
  • Views 129 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

PMP10091: PMP10091

first_name last_name
Prodigy 70 points
Part Number: PMP10091

Hi,

Could you please share out to increase the output of PMP10091 reference design to +/-20V ? This means we need Dual Boost with +20V@300mA and -20V@300mA Output ? What components need to change ?

Thanks,

 

  • 0
    TI__Intellectual 2770 points

    Hello Sir,

    I checked the thermal pic and thermal stress is low, so thermally and power wise there is some headroom left.
    Duty cycle is not meeting max. duty limitation, fine as well.
    The FET is rated for 25V, will work, but less margin - similar for the 25V rated output caps.
    Rectifiers are 30V rated, that's fine.
    If you need more margin at FET and caps please go towards 30V FET and 50V MLCCs.

    So the design will work as you change the feedback divider to Vout 20V, R5=54k9,
    if you can't reach full output power just decrease current sense resistor R11 a bit.
    (depends on layout as well, overshoot at ISNS).

    Best regards, Bernd

  • 0 in reply to Bernd Geck
    Prodigy 70 points

    Thanks Bernd for support . We will modify and test .