The STEVAL-ILL027V2 is an 18W single-stage offline LED driver based on the L6562A. It operates with an input voltage range of 190VAC to 295VAC and provides constant power to HBLED. It is able to drive 14 to 20 HBLED in series and features soft switching, LED open-circuit protection, LED short-circuit protection, power factor greater than 0.8, and efficiency greater than 87%.
The STEVAL-ILL027V2 is a non-isolated, soft-switched, single-stage, high power factor offline LED driver. It utilizes a buck-boost converter operating with constant peak current for constant power control and in transition mode to achieve soft switching using the L6562A controller.
This solution provides a cost-effective approach for offline non-isolated LED applications and includes open load and short-circuit protection. Key features include an input voltage range of 190 Vac to 295 Vac, the ability to drive 14 to 20 HBLEDs in series, and an efficiency greater than 87%.
| Input voltage | 190 Vac to 295 Vac |
|---|---|
| Power output | 18 W constant power |
| LED series count | 14 to 20 HBLED |
| Power factor | > 0.8 |
| Efficiency | > 87 % |
| Controller | L6562A |
It uses a buck-boost converter chosen for its simplicity and low cost.
Yes, it includes LED open-circuit protection and LED short-circuit protection.