Question for PMP9334

Hi All,

Please let me ask about PMP9334 reference design.

• In this design, the auxiliary winding is divided and input to FB pin. Please let me know the purpose of this configuration. I'd like to know the operating principle of this design overall.
• The VIN is powered from auxiliary winding, but it's powered from secondary side in PMP7764. Please let me know the different and benefit of each method.
• Can you share the detailed specification of G094215LF that is transformer usd in PMP9334? This request was asked in following thread but I can't find information in Gci Technologies' website.
• • http://e2e.ti.com/support/power_management/isolated_controllers/f/188/t/274086
• • http://www.gcitechnologies.com/texas_instruments_reference_designs.php

Your response will be appreciated.

Best Regards,

Sonoki / Japan Disty