42W high power factor flyback converter with constant voltage output based on ICL8810 with primary side regulation
The REF_ICL8810_LED_42W_PSR is a 42W reference design featuring Infineon’s high power factor flyback controller ICL8810. The board is a constant voltage (CV) primary-side regulated (PSR) system and is intended to be used with a constant current (CC) converter for LED lighting applications.
Compared to SSR, PSR shows significant cost advantages. Components, such as an optocoupler, a voltage reference, and an error amplifier are no longer needed. Thus, REF_ICL8810_LED_42W_PSR is the perfect, cost-optimized solution for on/off LED drivers or LED drivers with minimum dimming levels down to 5 percent.
The board has excellent accuracy of ±3.5% in the range of 10% to 100% of the output power.
With its benchmarking performance in power factor correction and total harmonic distortion at full-load and low-load conditions, ICL8810 enables window drivers and platform designs. Furthermore, the IC combines optimum efficiency and low EMI without compromising light quality.
Summary of Features
- Constant voltage (CV) primary-side regulated (PSR) reference design for LED lighting applications
- ICL8810 provides integrated burst mode for very low stand-by power < 100mW
- Power factor (PF) > 0.9 and THD < 10% across a wide load range (AC input up to 277Vrms)
- Maximum AC input voltage 90 – 305Vrms
- Critical conduction mode and quasi-resonant mode with smart valley hopping
- Best fit and solution for on/off LED drivers or LED drivers with minimum dimming levels down to 5%
- Cost optimized
- Excellent accuracy of ±3.5% in the range of 10% to 100% of the output power
- Enables smart lighting
Being the advanced featured variant of the ICL88xx family, ICL8810 has an integrated burst mode, enabling a very low stand-by power of < 100mW. Consequently, more power budget for additional components can be used. ICL8810 is ideally suited for smart lighting applications in connection with microcontrollers.
For secondary-side regulation of the single-stage flyback LED controller-family, choose:
REF_ICL8810_LED_42W_PSR is designed as plug and play solution.
Modular lighting boards
At Infineon we offer a broad variety of primary side ACDC and secondary side DCDC boards dedicated to LED lighting. The LED lighting boards can easily be stacked together for plug-and-play solutions.
List of Components