LLC Resonant mode Controller

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Resonant mode power supplies are a variation over SMPS circuits where the switching losses are significantly reduced by adapting zero-voltage or zero-current switching techniques, also known as soft-switching technique. Whereas non-resonant mode SMPS circuits, the switches are subjected to hard switching. Thus, resonant mode power supplies is much preferred to achieve higher efficiency. LLC HB Resonant operates under the ZVS mode, whereby switching loss is reduced so that the converter at higher switching frequency. And it can optimize the converter further at high input voltage. This topology allow us to eliminate the secondary filter inductor, adopt better rectifier diodes and secondary conduction loss is reduced. The converter utilizes leakage and magnetizing inductance of a transformer. With magnetic integration concept, all the magnetic components can be built in one magnetic core.

 

Infineon is proud to provide the Best-in-Class converters to support LLC HB resonant mode topology.


Infineon ICE1HS01G resonant mode converter, housed in a DSO-8 package, is an ease-to-design to realise a LLC HB resonant application. An oscillator is built-in allowing designers to set the suitable operation frequency range with a resistor. In addition, ICE1HS01G offers a programmed soft-start function to limit both the inrush current and the overshoot in output voltage. To protect the system during operation, mains input under-voltage protection and over-current protection are also in-built. Hence, it is able to operate in resonant mode with the highest reliability possible.


Infineon ICE2HS01G is a high performance resonant mode controller designed especially for high efficiency half-bridge or full-bridge LLC resonant converter with synchronous rectification at the secondary side. With its new driving techniques, the synchronous rectification can be realized for LLC converter operated with secondary switching current in both CCM and DCM conditions. No special synchronous rectification controller IC is needed at the secondary side. The maximum switching frequency is supported up to 1MHz.


Except the patented SR driving techniques, this IC provides very flexible design and integrates full protection functions as well. It's adjustable for maximum/minimum switching frequency, soft-start time and frequency, dead time between primary switches, turn-on and turn-off delay for secondary SR MOSFETs. The integrated protections include input voltage brownout, primary three-levels over current, secondary over load protection and no-load regulation.

 


Product Product Status Order Online Packages Green Applications Output Current Type VCC fSW Softstart
Matching Results: 6
descending ascending         descending ascending descending ascending descending ascending descending ascending descending ascending descending ascending
DSO-20
ICE2HS01G  

active and preferred

Buy online

PG-DSO-20

PC,TV,Server SMPS
4
11.0 V
18.0 V
- Yes
DSO-8
ICE1HS01G  

discontinued

 

 

PG-DSO-8

Off-Line SMPS
2
10.2 V
18.0 V
600.0 kHz
yes
ICE1HS01G-1  

active and preferred

Buy online

PG-DSO-8

Off-Line SMPS
2
10.2 V
18.0 V
600.0 kHz
yes
SOIC
IRS27951  

discontinued

discontinued

Buy online

Buy online

SOIC 8N

SOIC 8N

- - 10.0 V
20.0 V
- -
IRS27952  

active

discontinued

Buy online

Buy online

SOIC 8N

SOIC 8N

- - 10.0 V
20.0 V
- -
IRS279524  

discontinued

discontinued

Buy online

 

SOIC 14N

SOIC 14N

- - 10.0 V
20.0 V
- -

Application Notes

Title Size Date Version
2.3 MB 18 Nov 2015 02_11
1.2 MB 30 Sep 2012 01_00
717 KB 07 Jul 2011 01_00
2.1 MB 12 Aug 2009 01_00

Product Brief

Title Size Date Version
507 KB 07 Dec 2010 01_00
667 KB 13 Dec 2010 01_00

Product Selection Guide

Title Size Date Version
21 MB 22 Feb 2016 00_00

Evaluation Boards

Board Family Description Status
EVAL_600W_12V_LLC_C7 MOSFET, Power Controller (PWM, PFC), Gate Driver 600W DCDC/LLC stage, 400V/12V DC, 97.8% peak efficiency
  • IPP60R180C7, BSC010N04LS, 2EDL05N06PF, ICE2HS01G, ICE2QR2280Z, 2EDN7524F
active and preferred
EVAL-1HS01G-1-200W Power Controller (PWM, PFC) Half brdige LLC controller ICE1HS01G for 200W 12V & 24V SMPS evaluation board with 280V AC input
    active and preferred
    EVAL-2HS01G-300W-1 MOSFET, Power Controller (PWM, PFC) Half brdige LLC controller ICE2HS01G with SR at secondary side for 300W 12V SMPS evaluation board with 400V DC input
    • 2EDL05106BF
    • ICE2HS01G
    • IPB011N04NG
    • IPP60R190E6
    active and preferred
    EVAL-600W-12V-LLC-A MOSFET, Power Controller (PWM, PFC), Gate Driver 600W DCDC/LLC stage 400/12VDC, 97.4% peak efficiency
    • 2EDL05N06PF
    • BSC010N04LS
    • ICE2HS01G
    • ICE2QR2280Z
    • IPP60R190P6
    active and preferred
    IRAC27951SR Employing IRS27951SPbF Resonant Half Bridge controller HVIC and the IR11682S. Input voltage range: 350-420VDC or 250V-300Vac. Outputs: 24V/10A. Switching frequency range: 70KHz-150Khz. 95% efficiency without heatsink.
    • IRS27951
    active
    IRAUDPS3 110Vac or 220Vac selectable input voltage range. 89% efficiency at low line, 91% efficiency at high line. Over current and short circuit protection. Small form factor, light weight. Featuring IRS27952S resonant half-bridge control IC.
    • IRS27952
    active and preferred

    Reference Design

    Title Size Date Version
    2.1 MB 03 Jul 2013 01_03

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