Enhanced peak current mode controller capable of controlling HPF LED drivers

For applications such as single-stage LED drivers with high power factor (HPF) up to 75W and two-stage LED drivers up to 150W, the STMicroelectronics HVLED001 offline LED controller is now stocked by Mouser. The enhanced peak current-mode controller is capable of controlling mainly HPF fly-back or buck-boost topologies in LED drivers having an output power up to 150W. Some other topologies, like buck, boost and single-ended primary-inductor converter (SEPIC) can also be implemented. ST's innovative high voltage technology allows direct connection of the HVLED001 to the input voltage in order to both start up the device and monitor the input voltage without the need for external components, say the company.