40-W LED Driver for Street light Fixtures Eliminates Step-down Transformers
Thu, 10/27/2011 - 7:47am
Microsemi Corporation unveiled a new LED driver designed for North American street light installations. The efficient LXMG221D-0700040-D2F LED driver eliminates bulky step-down transformers typically used in street light fixtures in these markets, providing a single-step conversion from 347 VAC or 480 VAC down to less than 57 VDC as typically required by LED fixtures. This allows manufacturers to design lighter fixtures, which can lower product development and transportation costs. Features include integrated fault detection and management functionality which enable operators to respond more quickly to light fixture failures. Additional features include constant current single 70-mA string applications using ~12-17 LEDs without flickering (up to 40W output); high power factor (PF >0.9) and low total harmonic distortion (THD <15 percent) across the entire input voltage range at full load to meet or exceed standard requirements; dimmable to 10 percent via 0-10V, PWM controls or potentiometers; FCC Title 47, part 15 Class B compliant; over voltage, over current protection and automatic over-temperature shutdown; and fault management feature to sense and manage failed (short and open) LED situations.