XDPS21071
High performance flyback controller IC - multi-mode digital, forced frequency resonant
Infineon’s XDPS21071 is the first flyback controller IC in the industry to introduce ZVS (zero-voltage switching) on the primary side to achieve high efficiency with simplified circuitry and economical switches. By driving an external low voltage switch to induce a negative current to discharge the main high voltage MOSFET, switching losses can be reduced further compared to traditional valley switching type of switching schemes. To achieve high efficiency with synchronous rectification, the XDPS21071 multi-mode digital forced-frequency resonant (FFR) flyback controller IC ensures DCM (discontinued conduction mode) operation via valley detection for a safe and robust operation.
Summary of Features
- Digital configurable flyback controller IC
- Integrated start-up cell
- Integrated dual gate driver
- ZVS operation with highline input voltage
- High switching frequency of up to 140kHz
- Ensuring DCM operation with valley detection
- Light load control with active burst mode
Benefits
- High density with high switching frequency
- High efficiency with adaptive ZVS operation and frequency law for variable output design
- Safe and robust SR operation with DCM operation
- Ease of design with dual integrated gate drivers and start-up cell
- Ease of configurable design with GUI tools
Potential Applications
