TIDA-010015: AC-DC Charger Design Assistance/Suggestions

Part Number: TIDA-010015
Other Parts Discussed in Thread: TIDA-010080,

Hello E2E Experts,

Good day.

I am planning to design an AC-DC Charger PCB for the LiFePo4 battery cells with 8S4P configuration. My requirements are 

1) Vin max : 277V AC (supply from the main basically)

2) Vout min : 16V

3) Vout max : 30V

4) Iout : 10A (should be in the range even if max current is 15A)

I chose TIDA-010015 & TIDA-010080 Reference Designs and Evaluation Models but unfortunately they are still not fitting my requirements. The requirements are non negotiable and must be considered strictly. 

I humbly request you to please suggest me some reference designs so that based on those I can design my PCB.

Regards,

TICSC