• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 62 subscribers
  • Views 107 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.

Help selecting flyback controller

Rajkumar Chaurasiya
Prodigy 120 points

Hi,

For this thread, https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1188239/ucc24624-application, I need some help for finding Flyback controller for the auxiliary power supply in Boost PFC + LLC.

Previously I was used Power Integration IC TNY288KG. Can you please suggest.

Requirement-

1. compatible to TNY288KG like inbuilt internal switch, VDS rating and maximum power rating etc. 

2. But I do not need isolation between primary & secondary. (Remove Opto-coupler)

3. Two output voltages (12V, 600mA & 18V, 500mA) in the output side. I have use stacked winding in the secondary side for 12V & 18V.

4. I want to sense 12V output in FB pin for better regulation.

Please provide your suggestion.

I will share the schematic on mail.

Thanks & Regards,

Raj Kumar Chaurasiya

  • 0
    TI__Intellectual 2240 points

    Hi Rajkumar,

    Thanks for reaching out!

    Unfortunately, we do not have switchers (FET built into controller) that supports the output power level (7.2W+9W) that you are looking for.

    We have UCC28910 and UCC28911 switcher that supports 700V start up volt and up to 12W output power (see below table)

    A close cross for ACDC primary side regulated (no opto needed) controller is UCC28730 (SOIC7 footprint) that supports 700V HV startup and  <5mW standby power. 

    Thanks,

    Claire