Hybrid flyback ICs

Infineon's innovative controllers for hybrid flyback (HFB) to achieve high efficiency and ultra-high power density designs with high reliability

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Overview

Flyback Simplicity Meets Resonant Efficiency - Hybrid Flyback (HFB) architecture combines the straightforward design of a flyback with the high-efficiency resonant operation. Using Si or GaN switches, the HFB controllers deliver ultra-high power density, a flat efficiency curve across all loads & industry-leading standby power. With the dpVision tool & advanced design spreadsheets, you can slash development time and achieve faster Time-to-Market.

Key Features

  • 600 V start-up cell
  • Integrated gate drivers for Si/GaN
  • CrCM PFC of Combo controllers
  • HFB peak current control
  • HFB ZVS/ZCS operation
  • HFB jitter for EMI reduction
  • Harmonized PFC and HFB operation
  • Low standby burst mode operation

Products

About

Main advantages: the HFB topology together with Infineon’s controller

The HFB topology plus Infineon’s controller is the premier choice for cost-effective, ultra-compact designs requiring a wide output voltage range.

Efficient energy transfer: Zero-Voltage Switching (ZVS) on the primary side and Zero-Current Switching (ZCS) on the secondary side is achieved across wide bus and load conditions. Fully recovered leakage inductance energy maximizes energy transfer efficiency

Ultra-high power density: The resonant capacitor actively contributes to energy transfer resulting in a smaller transformer. No additional resonant inductor is needed. The ZVS/ZCS operation allows for smaller EMI filters. These enable ultra-high power density

Lower BOM costs: HFB utilizes conventional flyback transformers and reduces voltage stress on all switching components, keeping your system costs highly competitive

Intelligent PFC Integration: The PFC-HFB combo controllers dynamically adjust bus voltage based on line and load conditions, ensuring a flat, high-efficiency curve across the entire operating range

Built-in reliability: The HFB controllers deliver comprehensive, integrated protection features ensuring a robust system, reducing the risk of failure in the field

The E-Series Generation: Focus on Efficiency and Ease-of-Use

Infineon offers a versatile portfolio to match your specific performance and cost targets. The latest E-series generation of hybrid flyback controller family includes:

  • XDP™ XDPS2201E: Dedicated DC-DC Hybrid Flyback Controller
  • XDP™ XDPS2221E: Integrated AC-DC CrCM PFC + DC-DC HFB Combo Controller

Key Features:

  • Agnostic gate drivers: Native support for both GaN and Si switches gives you the flexibility to optimize for performance or budget
  • High-voltage start-up cell: Integrated 600 V cell ensures rapid VCC charging for instant power-up sequences
  • Eco-friendly standby: Advanced burst-mode control helps you meet and exceed the strictest no-load standby power regulations
  • Adaptive bus control: The combo controller optimizes PFC bus voltage in real-time, maintaining peak efficiency even in variable conditions
  • Design velocity: Take advantage of our new Excel-based design spreadsheets and the upgraded dpVision GUI to simplify configuration
XDPS2201E
XDPS2221E

Target applications: optimized for wide application scope

Optimized for compliance with the latest CoC and DoE energy-saving standards, the E-series is the market-leading solution for:

  • High-Speed Charging: USB-PD chargers and wall-plug power supplies
  • Computing: Slim notebook adapters and mobile workstations
  • E-Mobility & Tools: High-performance chargers for eBikes and professional power tools
  • LED Lighting: LED drivers with high efficiency over wide output range 

Simplified Design-In: From Concept to Production

Removed complexity from high-performance design:

  • Automated Design Spreadsheet: A step-by-step tool that requires minimal input to calculate the entire system. It supports custom magnetic cores and switches for fully tailored solutions.
  • Seamless FW Configuration: Once your hardware design is finalized, simply export the firmware parameters and import them directly into the dpVision GUI (v2.1.3.7). This eliminates manual entry errors and ensures your prototype is running properly at the first power-up.
  • Comprehensive Design Guide: The detailed documentation empowers your team to master the HFB philosophy and optimize your solution.
XDPS2201E Design Guide
XDPS2221E Design Guide

Don’t just build a power supply—build a benchmark

Choose Infineon’s HFB Controllers and boost your business.

Main advantages: the HFB topology together with Infineon’s controller

The HFB topology plus Infineon’s controller is the premier choice for cost-effective, ultra-compact designs requiring a wide output voltage range.

Efficient energy transfer: Zero-Voltage Switching (ZVS) on the primary side and Zero-Current Switching (ZCS) on the secondary side is achieved across wide bus and load conditions. Fully recovered leakage inductance energy maximizes energy transfer efficiency

Ultra-high power density: The resonant capacitor actively contributes to energy transfer resulting in a smaller transformer. No additional resonant inductor is needed. The ZVS/ZCS operation allows for smaller EMI filters. These enable ultra-high power density

Lower BOM costs: HFB utilizes conventional flyback transformers and reduces voltage stress on all switching components, keeping your system costs highly competitive

Intelligent PFC Integration: The PFC-HFB combo controllers dynamically adjust bus voltage based on line and load conditions, ensuring a flat, high-efficiency curve across the entire operating range

Built-in reliability: The HFB controllers deliver comprehensive, integrated protection features ensuring a robust system, reducing the risk of failure in the field

The E-Series Generation: Focus on Efficiency and Ease-of-Use

Infineon offers a versatile portfolio to match your specific performance and cost targets. The latest E-series generation of hybrid flyback controller family includes:

  • XDP™ XDPS2201E: Dedicated DC-DC Hybrid Flyback Controller
  • XDP™ XDPS2221E: Integrated AC-DC CrCM PFC + DC-DC HFB Combo Controller

Key Features:

  • Agnostic gate drivers: Native support for both GaN and Si switches gives you the flexibility to optimize for performance or budget
  • High-voltage start-up cell: Integrated 600 V cell ensures rapid VCC charging for instant power-up sequences
  • Eco-friendly standby: Advanced burst-mode control helps you meet and exceed the strictest no-load standby power regulations
  • Adaptive bus control: The combo controller optimizes PFC bus voltage in real-time, maintaining peak efficiency even in variable conditions
  • Design velocity: Take advantage of our new Excel-based design spreadsheets and the upgraded dpVision GUI to simplify configuration
XDPS2201E
XDPS2221E

Target applications: optimized for wide application scope

Optimized for compliance with the latest CoC and DoE energy-saving standards, the E-series is the market-leading solution for:

  • High-Speed Charging: USB-PD chargers and wall-plug power supplies
  • Computing: Slim notebook adapters and mobile workstations
  • E-Mobility & Tools: High-performance chargers for eBikes and professional power tools
  • LED Lighting: LED drivers with high efficiency over wide output range 

Simplified Design-In: From Concept to Production

Removed complexity from high-performance design:

  • Automated Design Spreadsheet: A step-by-step tool that requires minimal input to calculate the entire system. It supports custom magnetic cores and switches for fully tailored solutions.
  • Seamless FW Configuration: Once your hardware design is finalized, simply export the firmware parameters and import them directly into the dpVision GUI (v2.1.3.7). This eliminates manual entry errors and ensures your prototype is running properly at the first power-up.
  • Comprehensive Design Guide: The detailed documentation empowers your team to master the HFB philosophy and optimize your solution.
XDPS2201E Design Guide
XDPS2221E Design Guide

Don’t just build a power supply—build a benchmark

Choose Infineon’s HFB Controllers and boost your business.
Documents

Design resources

Developer community