XDPL8105-Digital Flyback Controller With High Power Factor IC
The XDPL8105 is a digital AC/DC flyback controller with Power Factor Correction (PFC). The PFC function enables a rectified sinusoidal input current waveform with a power factor typically up to 0.99 and THD < 10% for a wide range of operating conditions. XDPL8105 provides primary side constant output current control that avoids the secondary side control feedback loop circuitry usually needed in isolated power converters. This approach supports a low part count that is necessary to build up the application. XDPL8105 has multi-mode operations and it selects the best mode of operation based on operating conditions. The multi-mode operation will automatically switch between quasi-resonant mode (QRM) and discontinuous mode (DCM) and active burst mode (ABM). In addition, XDPL8105 supports both secondary side 0 – 10 V dimming and primary side micro-controller dimming application. Digital and RF interfaces can be supported by a microcontroller using a digital-to-analog converter.
The XDPL8105 is a high-performance microcontroller-based digital single-stage flyback controller with power factor correction (PFC) for constant output current applications. The IC is available in a DSO-8 package and supports a wide feature set, requiring a minimum of external components. The digital engine offers the possibility to configure operational parameters and protection modes, which helps to ease the design phase and allows a reduced number of hardware variants in production. Accurate primary side output current control is implemented to eliminate the need for secondary side feedback circuitry.
Product highlights:
- Highly accurate primary-side controlled output current (Line/load regulation typical within +/- 3%)
- High power quality (typical PF up to 0.99 and THD < 10%)
- High Efficiency (up to 91%)
- Configurable output current with no BOM change
- Supports universal input voltage (85 – 305 V AC)
- Supports wide output load voltage (up to 4 times of minimum output load voltage)
- Ideal for application with the dimming signal from micro-controller on the primary side
- Supports fully isolated 0 – 10 V dimming with Infineon CDM10V
- Supports low output current dimming.
- Low standby power
Benefits:
- The XDPL8105 enables to implement high performance and innovative value LED driver with small effort
- Reduced BoM minimizes system cost and increases flexibility
- High-reliability features improve the lifetime of the driver
- The fast design cycle reduces time to market and efforts for value products
- Supply chain efficiency optimizes stock keeping and enables high flexibility
Applications:
- Electronic control gear for LED luminaires (5 W to 80 W)
- Dimmable LED driver with constant current primary regulation
Features/Specs:
- Programmable constant current output with primary-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
- The output
- the voltage range can vary by a factor of 4 (e.g. 14V-56V)
- Highly accurate primary-side control output current typ. ±3%
- Temperature guard with adaptive thermal management with on-chip sensor
- Digital control selects automatically the best mode of operation, depending on actual requirements
- QRM (quasi-resonant mode)
- DCM (discontinuous conduction mode)
- ABM (active burst mode)
- Digital parameters
- Configurable brown-out and brown-in protections
- Relevant error conditions are monitored and protected
- Undervoltage
- Overvoltage
- Open load
- Output shorted
- Package: PG-DSO-8
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