N2Power (Simi Valley, CA) a division of Qualstar Corporation, has announced constant current versions of its 375W AC-DC power supply dubbed XL375LED. The new units are designed to drive strings of LEDs in high power lamps for industrial, entertainment and outdoor lighting requirements.
The XL375LED models offer single main outputs of 12, 24, 28, 36, 40, 48 or 56 VDC maximum. They also have a 12V/1A auxiliary output (normally used to drive a cooling fan) and a 5V/1A standby output. The compact 1.50 inch (3.81cm) high package has a footprint of just 3.3 × 5 inches (8.38 × 12.7cm) for a power density of over 15W/in3 and is up to 93% efficient. This high efficiency further supports the lighting industry’s drive to reduce energy consumption through the use of solid-state LED light sources. Other features of the XL375LED include active power factor correction, current sharing and inrush current protection.
The XL375LED has a universal AC input (90-305 VAC), which is particularly important for LED lighting manufacturers as they need to achieve 277 VAC input certification. The unit is RoHS compliant and meets all major international safety and EMC requirements.
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