Infineon Technologies XDPS21071 FFR Flyback Controller
Infineon Technologies XDPS21071 Forced Frequency Resonant Flyback Controller is a digital pulse width modulation (PWM) controller for high-density adapter applications based on DCM flyback topology. The device is ideal for high-density adapters and chargers. The XDPS21071 zero-voltage switching (ZVS) on the primary side achieves high efficiency with simplified circuitry and economical switches. The multi-mode digital force-frequency resonant (FFR) flyback controller IC ensures discontinued conduction mode (DCM) operation via valley detection for a safe and robust operation.
Features
- 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
- Digital configurable flyback controller IC
- Integrated 600V startup cell for fast startup and direct bus voltage sensing
- Multi-mode operation with forced frequency resonant mode (FFR)
- High switching frequency of up to 140kHz
- Adaptive current limitation for variable VOUT
- Supports low no-load input power to meet stringent regulatory standards
- One-pin UART interface for configuration
- Multi-mode operation with BM, DCM
- Light load control with active burst mode
- Integrated dual gate driver
- Built-in soft-start
- Built-in protection modes
- Brown-in and brownout detection via integrated HV startup cell
- Pb-free lead plating; RoHS-compliant
- Halogen-free according to IEC61249-2-21
- Qualified for industrial applications according to the relevant tests of JEDEC47/20/22
Applications
- Fast and small form factor charger with variable output voltage
- Adapter or fast chargers meeting regulatory efficiency standards (such as Energy Star United States DoE level VI and European CoC version 5 Tier 2)
Block Diagram
Associated Products
Infineon Technologies USB-C Chargers & Adapters
Caters to much higher power ratings than typical smartphone-targeted charging designs.
Additional Resources
Published: 2020-01-15
| Updated: 2024-09-18