REFICL8810LED42WPSRTOBO1

REF_ICL8810_LED_42W_PSR is a 42W reference design featuring Infineon’s high power factor flyback controller ICL8810 for constant voltage (CV) primary-side regulated (PSR) LED lighting applications. It offers cost advantages, excellent accuracy, and is ideal for LED drivers with minimum dimming levels down to 5 percent, combining efficiency and low EMI without compromising light quality. PSR topology is the best fit for on/off LED drivers and drivers with a minimum dimming of 5 percent. The main difference between SSR and PSR topology is based on the fact that for the PSR topology, the main channel output voltage is measured indirectly on the primary-side Vcc supply. So, good coupling between the main output and the Vcc primary-side windings improves regulation accuracy.

• ICL8810 provides integrated burst mode for very low stand-by power less than 100mW
• Power factor(PF): greater than 0.9 and THD less than 10% across load range (AC input up to 277Vrms)
• Maximum AC input voltage range from 90 – 305Vrms
• Critical conduction mode and quasi-resonant mode with smart valley hopping
• Excellent accuracy of ±3.5% in the range of 10% to 100% of the output power
• Cost optimized
• Enables smart lighting

内容

Start-up board, Op-amp board.