Offline constant voltage and PFC controller offers low standby power for connected LED lighting

Diodes Incorporated has introduced the AL1788. The device is a high-performance offline constant voltage and PFC controller that has been designed to merge high PFC with low THD and low standby power, making it well-suited for commercial applications and connected lighting requirements. Based on a platform supporting both flyback and buck topology, the device is designed for PSR, which eliminates the need for feedback optically coupled from the secondary side. This gives exceptional performance, such as high efficiency of up to 91%, good line and load regulation of 2% over a full range of line and load regulation, and low standby power of less than 0.2W. Comprehensive protections are integrated, including output-short protection and output-open protection, as well as overvoltage, overcurrent and over-temperature protection. Undervoltage lockout is also integrated. The controller-only version of the device is provided in the SOT26 (SC74R) package, while the MOSFET regulator options in an SO-7 package. Both are lead, halogen, and antimony-free and fully RoHS compliant.