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Half-bridge and LLC controller

Increasing efficiency with resonant mode power supplies

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Overview

Resonant mode power supplies are a variation of SMPS circuits offering high efficiency, low EMI, and high-power density. Soft switching offers significantly low switching losses by using ZCS (zero-current) and ZVS (zero-voltage) switching schemes. Similarities are shared between both half-bridge and LLC controllers such as utilizing an external capacitor as well as leakage inductance from the main transformer to form a resonant tank to aid its switching operation.

Key Features

  • Novel and simple design
  • Externally adjust. operating freq.
  • Burst mode operation
  • OCP, brown-out protection
  • Integrated high-side driver
  • Operation with DCM & ZV-RV S& CRM
  • Suite of protection features
  • UART port

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About

Simplify system design with best-in-class LLC half-bridge resonant controllers

A built-in oscillator allows designers to set the suitable operation frequency range with a resistor. The programmed soft-start function limits both the inrush current and the overshoot in output voltage. Offered system protection like input undervoltage protection and overcurrent protection enable the highest system operation reliability. The benefits offered to design are minimum external components to save the BOM cost and mains undervoltage protection with adjustable hysteresis to simplify the system design.

ICE2HS01G is a high-performance resonant mode controller

ICE2HS01G is a high-performance resonant mode controller designed especially for high-efficiency half-bridge LLC converters with synchronous rectification at the secondary side. With its new driving techniques, synchronous rectification can be realized for a half-bridge LLC converter operated with a secondary switching current in both CCM and DCM conditions. No special synchronous rectification controller IC is needed at the secondary side. The controller offers the following key benefits:

  • Novel LLC/SR operation mode and controlled by a primary side controller
  • Multiple protection for SR operation
  • Tight tolerance control
  • Accurate setting of switching frequency and dead time
  • Simple system design
  • Optimized system efficiency
  • Multiple converter protection: OTP, OLP, OCP, and latch-off enable
  • External disable for either SR switching or HB switching
  • DSO-20 package
XDPS2201 multi-mode, digitally configurable hybrid flyback controller

XDPS2201 is a highly integrated hybrid flyback controller from the XDP? digital power family targeting high-density AC-to-DC power supplies, such as USB-C fast chargers and adapter applications. By using two high-voltage MOSFETs such as CoolMOS? configured in a half-bridge configuration, XDPS2201 is able to drive both high- and low-side MOSFETs in an asymmetric half-bridge flyback topology. The controller offers the following key benefits:

  • High power density design and high efficiency of up to 93.8%
  • High average efficiency > 92% across different AC line and load conditions
  • BOM savings of up to 20 external components for high-side driving
  • Increased system robustness
  • Fast and precise system tuning with configurable digital parameters
  • Pb-free, RoHS compliant?

Simplify system design with best-in-class LLC half-bridge resonant controllers

A built-in oscillator allows designers to set the suitable operation frequency range with a resistor. The programmed soft-start function limits both the inrush current and the overshoot in output voltage. Offered system protection like input undervoltage protection and overcurrent protection enable the highest system operation reliability. The benefits offered to design are minimum external components to save the BOM cost and mains undervoltage protection with adjustable hysteresis to simplify the system design.

ICE2HS01G is a high-performance resonant mode controller

ICE2HS01G is a high-performance resonant mode controller designed especially for high-efficiency half-bridge LLC converters with synchronous rectification at the secondary side. With its new driving techniques, synchronous rectification can be realized for a half-bridge LLC converter operated with a secondary switching current in both CCM and DCM conditions. No special synchronous rectification controller IC is needed at the secondary side. The controller offers the following key benefits:

  • Novel LLC/SR operation mode and controlled by a primary side controller
  • Multiple protection for SR operation
  • Tight tolerance control
  • Accurate setting of switching frequency and dead time
  • Simple system design
  • Optimized system efficiency
  • Multiple converter protection: OTP, OLP, OCP, and latch-off enable
  • External disable for either SR switching or HB switching
  • DSO-20 package

XDPS2201 multi-mode, digitally configurable hybrid flyback controller

XDPS2201 is a highly integrated hybrid flyback controller from the XDP? digital power family targeting high-density AC-to-DC power supplies, such as USB-C fast chargers and adapter applications. By using two high-voltage MOSFETs such as CoolMOS? configured in a half-bridge configuration, XDPS2201 is able to drive both high- and low-side MOSFETs in an asymmetric half-bridge flyback topology. The controller offers the following key benefits:

  • High power density design and high efficiency of up to 93.8%
  • High average efficiency > 92% across different AC line and load conditions
  • BOM savings of up to 20 external components for high-side driving
  • Increased system robustness
  • Fast and precise system tuning with configurable digital parameters
  • Pb-free, RoHS compliant?

Documents

Documents

Design resources

Developer community

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