XDPL8218
Digital high power factor XDP™ control IC for cost-effective, dual stage LED drivers with constant voltage secondary side regulation and a secondary side DC/DC converter
The XDPL8218 integrates a constant voltage quasi-resonant digital flyback XDP™ controller with algorithms for high power factor and low THD. Main application field for XDPL8218 digital control IC for LED drivers are dual stage designs with a DC-DC stage at secondary side and XDPL8218 as primary side. The control IC manages wide load ranges and reacts fast and stable to dynamic load changes. The digital core of the XDPL8218 control IC enables high efficiency over wide output power range. A comprehensive parameter set allows the adaptation of the circuit to a wide set of LED driver features.
Zusammenfassung der Merkmale
- Programmable constant voltage output with secondary-side regulation
- Supports AC and DC input
- Nominal input voltage range 100VAC – 277VAC or 127VDC – 430VDC
- Reference board efficiency >90%
- Power factor >0.9 and THD <15% over wide load range
- Standby power <100mW
- Temperature guard with adaptive thermal management with on-chip sensor
- Digital control selects automatically best mode of operation, depending on actual requirements
- QRM (quasi-resonant mode)
- DCM (discontinuous conduction mode)
- ABM (active burst mode)
- Tunable, digital parameters
- Configurable brown-out and brown-in protections
- Embedded digital filters
- Relevant error conditions are monitored and protected
- Undervoltage
- Overvoltage
- Open load
- Output shorted
Vorteile
- The XDPL8218 enables the design of high performance and innovative value LED driver with small effort
- Reduced BoM minimizes system cost and increases flexibility
- High reliability features improve lifetime of the driver
- Fast design cycles reduce time to market and efforts for value products
- Supply chain efficiency optimizes stock keeping and enables high flexibility
Potentielle Zielanwendungen
- LED driver with constant voltage secondary-side regulation
