Infineon Technologies | XDPL8221XUMA1

The XDPL8221 from Infineon is a digital dual-stage Power Factor Correction (PFC) and flyback power controller IC for AC-DC LED drivers which provides constant-current and constant-voltage outputs and supports PWM dimming functionality. The XDPL8221 is for use with dimmable LED lighting fixtures that operate from an AC mains power supply.

The XDPL8221 is a digital AC-DC power controller for use in LED drivers. It controls the conversion of the high input voltage to a lower-voltage, constant-current output suitable for driving LEDs, while applying power factor correction for compliance with power quality directives. It enables the user to easily configure important operating parameters such as dimming via a microcontroller’s UART interface.

Applications:

• AC-DC drivers for LED lighting

Features:

• Input-voltage range:
  • 90V to 305V AC
  • 127V to 430V DC
• Flicker-free dimming down to 1% of nominal current
• Configurable brown-out and brown-in protections
• Under- and over-voltage protection
• Open load protection
• Output short protection
• Configurable adaptive temperature protection

Benefits:

Because this Infineon device is a digital power controller, which provides various configuration options, it can be used to create multiple end product variants which have different operating characteristics (such as maximum drive current) but which share the same hardware. This makes the customer’s production and inventory management easier and reduces the number of stock-keeping units that it uses in production.

Infineon also supplies two reference designs based on the XDPL8221 for LED drivers with a maximum rated power of 50W and 100W.