Summary of ICL88XX FAMILY OF SINGLE-STAGE FLYBACK CONTROLLERS HAVE CONSTANT VOLTAGE OUTPUT
Infineon’s ICL8800, ICL8810 and ICL8820 are single-stage flyback LED controllers delivering constant-voltage outputs for LED drivers and other 125 W applications. They offer excellent power factor and low harmonic distortion, support SSR and PSR, and use CCM and quasi-resonant modes with smart valley hopping for efficiency and low EMI. The family minimizes external components, includes robust protections, and supports designs up to 125 W with appropriate MOSFETs. ICL8810 adds burst mode for <100 mW standby and 0.1% dimming; ICL8820 adds DC-input jitter for improved EMI in DC/emergency applications.
Parts used in the ICL88xx family:
- ICL8800 single-stage flyback LED controller
- ICL8810 single-stage flyback LED controller (advanced, burst mode)
- ICL8820 single-stage flyback LED controller (fully featured, DC-input jitter)
- CoolMOS P7 power MOSFETs (recommended)
- External start-up circuit components
- Minimal external passive components for SSR/PSR implementation
Cost-effective dimmable and intelligent LED systems are expected to increase the market share disproportionately in the coming years. Introducing the ICL8800, ICL8810 and ICL8820 single-stage flyback LED controllers for constant output voltages, Infineon Technologies AG addresses the need of LED driver manufacturers in this regard. With their unique features, the ICs meet the necessary performance requirements for LED lighting applications, such as LED drivers and luminaires up to 125 W, smart lighting, and emergency luminaire. Outside this market segment, adapters and chargers, flat TVs, all-in-one PCs and monitors up to 125 W profit from the ICL88xx family.
All three variants offer benchmarking performance for power factor correction and total harmonic distortion at full-load and low-load conditions, thus enabling platform design and window drivers. They are optimized as secondary-side regulated (SSR) constant voltage (CV) output flyback controllers and are also well suited for primary-side regulation (PSR). To achieve optimum efficiency and low electromagnetic interference (EMI) without compromising light quality, they are featuring critical conduction mode (CCM) and quasi-resonant mode (QRM) with smart valley hopping.
The ICL88xx family offers an external start-up circuit control signal for more flexibility and a cost-optimized bottom-up platform design for many applications. It has a comprehensive set of protection features, including a power limitation and secondary side over-voltage protection. In addition, the devices require a minimum number of external components, leading to outstanding cost-effectiveness compared to existing solutions. The gate driver current enables designs up to 125 W with state-of-the-art MOSFETs. The system performance and efficiency can be further optimized using Infineon’s CoolMOS™ P7 power MOSFETs.
ICL8800 is the basic variant providing all of the above features. ICL8810 is an advanced variant with an integrated burst mode that allows a very low standby power consumption of less than 100 mW and flicker-free deep dimming down to 0.1 percent. This feature makes ICL8810 ideally suited for smart lighting applications in connection with microcontrollers. Finally, ICL8820 is the fully-featured variant, additionally equipped with an integrated DC-input jitter function. The latter improves EMI performance and supports the fulfillment of EMI requirements in DC operation. ICL8820 eases EMI certification in the design of emergency lighting LED driver applications without additional circuitry, minimizing cost and effort.
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- What applications are the ICL88xx family intended for?
LED drivers and luminaires up to 125 W, smart lighting, emergency luminaires, adapters and chargers, flat TVs, all-in-one PCs and monitors up to 125 W. - Can the ICL88xx devices support primary-side regulation?
Yes, they are optimized as secondary-side regulated controllers and are also well suited for primary-side regulation. - How do the ICL88xx controllers achieve low EMI and high efficiency?
They use critical conduction mode and quasi-resonant mode with smart valley hopping to optimize efficiency and reduce EMI. - Does ICL8810 offer low standby power?
Yes, ICL8810 includes an integrated burst mode that enables standby power consumption of less than 100 mW. - What additional feature does ICL8820 provide for EMI performance?
ICL8820 includes an integrated DC-input jitter function to improve EMI performance during DC operation. - Are protection features included in the ICL88xx family?
Yes, the family includes comprehensive protections such as power limitation and secondary-side over-voltage protection. - Do the ICL88xx devices require many external components?
No, they require a minimum number of external components, enabling cost-effective designs. - What dimming capability does ICL8810 provide?
ICL8810 supports flicker-free deep dimming down to 0.1 percent.
