LLC Resonant Converter with Sync Rectifier

RDLLC56F82748

Roll over image to zoom in

This reference design demonstrates the implementation of a LLC resonant converter using MC56F83783, MC56F81xxx or MC56F82748 digital signal controllers (DSC).

Block Diagram

LLC Resonant Converter

RDLLC56F82748 Block Diagram
Get diagram PDF

Supported Devices

Processors and Microcontrollers

32-Bit 56800EX/EF Core

  • MC56F81xxx: Up to 100MHz Digital Signal Controllers with DSASS and Operational Amplifier
  • MC56F83xxx: Performance Level Digital Signal Controllers, USB FS OTG, CAN FD

Features

  • Flash updating
  • 12 V/240 W output with universal mains input
  • 120mVp-p output ripple; Overshoot < 5%@0 to 65% load step; Hold up time 20ms@50% load, 15ms@100% load
  • Over-current, over-/under-voltage, voltage brown-in, over-temperature, power limit protection functions
  • Modular software and hardware design for convenient internal reuse and customer evaluation
  • Components
    • Half-bridge LLC with synchronous rectifier
  • Interfaces
    • Isolated USB interface for FreeMASTER connection
    • Isolated SCI communication between primary side and secondary side; IIC interface is reserved for PMBus communication
N true 0 PSPRDLLC56F82748en 2 Application Note Application Note t789 1 Reference Manual Reference Manual t877 1 en_US en_US en Reference Manual Reference Manual 1 1 0 Chinese 本文档重点介绍 LLC 谐振转换器的关键部分设计。 1470647338328697695135zh PSP 1.8 MB Registration without Disclaimer None documents Extended 1470647338328697695135 /secured/assets/documents/zh/reference-manual/DRM172.pdf 1832886 /secured/assets/documents/zh/reference-manual/DRM172.pdf DRM172 documents Y N 2016-10-31 LLC Resonant Converter Design Using MC56F8xxxx /secured/assets/documents/zh/reference-manual/DRM172.pdf https://www.nxp.com.cn/webapp/Download?colCode=DRM172&docLang=zh Reference Manual N 500633505221135046 2022-12-07 zh Jul 20, 2021 500633505221135046 Reference Manual Y N 采用MC56F8xxxx的LLC谐振转换器设计 1 English DRM172, Digital Power, LLC, Resonant Converter 1470647338328697695135 PSP 1.8 MB Registration without Disclaimer None documents Extended 1470647338328697695135 /secured/assets/documents/en/reference-manual/DRM172.pdf 1832886 /secured/assets/documents/en/reference-manual/DRM172.pdf DRM172 documents Y N 2016-10-31 LLC Resonant Converter Design Using MC56F8xxxx /webapp/Download?colCode=DRM172 /secured/assets/documents/en/reference-manual/DRM172.pdf Reference Manual N 500633505221135046 2022-12-07 pdf Y en Oct 22, 2020 500633505221135046 Reference Manual Y N LLC Resonant Converter Design Using MC56F8xxxx Application Note Application Note 1 2 0 English AN12617 1574866778090701255965 PSP 1.1 MB None None documents None 1574866778090701255965 /docs/en/application-note/AN12617.pdf 1065018 /docs/en/application-note/AN12617.pdf AN12617 documents N N 2019-11-27 AN12617 - LLC Resonant Converter Using MC56F83783 /docs/en/application-note/AN12617.pdf /docs/en/application-note/AN12617.pdf Application Note N 645036621402383989 2022-12-07 pdf N en Oct 16, 2019 645036621402383989 Application Note Y N AN12617 - LLC Resonant Converter Using MC56F83783 false 0 RDLLC56F82748 downloads en true 0 Y PSP Application Note 1 /docs/en/application-note/AN12617.pdf 2019-11-27 1574866778090701255965 PSP 2 Oct 16, 2019 Application Note AN12617 None /docs/en/application-note/AN12617.pdf English documents 1065018 None 645036621402383989 2022-12-07 N /docs/en/application-note/AN12617.pdf AN12617 - LLC Resonant Converter Using MC56F83783 /docs/en/application-note/AN12617.pdf documents 645036621402383989 Application Note N en None Y pdf 0 N N AN12617 - LLC Resonant Converter Using MC56F83783 1.1 MB AN12617 N 1574866778090701255965 Reference Manual 1 /secured/assets/documents/en/reference-manual/DRM172.pdf 2016-10-31 1470647338328697695135 PSP 1 Oct 22, 2020 Reference Manual DRM172, Digital Power, LLC, Resonant Converter Registration without Disclaimer /secured/assets/documents/en/reference-manual/DRM172.pdf English documents 1832886 None 500633505221135046 2022-12-07 Y /webapp/Download?colCode=DRM172 LLC Resonant Converter Design Using MC56F8xxxx /secured/assets/documents/en/reference-manual/DRM172.pdf documents 500633505221135046 Reference Manual N en Extended Y pdf 1 Y N LLC Resonant Converter Design Using MC56F8xxxx 1.8 MB DRM172 N 1470647338328697695135 true Y Designs

Documentation

Quick reference to our documentation types.

Filters

2 documents

Compact List

Design Files

Quick reference to our design files types.
Filters

1 design file

Software

Quick reference to our software types.

Filters

5 software files

Note: For better experience, software downloads are recommended on desktop.