External 37-W four-channel LED Driver includes standard dimming
Phihong USA has developed a new multi-channel driver for indoor and outdoor lighting applications. Designated the PDA037W-350G, the driver is equipped with four outputs of 350 mA and offers 0-10V dimming capability. Suitable for linear fluorescent replacement fixtures, the power supply is asserted to satisfy all ENERGY STAR requirements governing power supplies in solid-state lighting luminaires. The power supply is equipped with four constant current outputs of 350 mA at a nominal output voltage of 24.5 VDC. With an AC input range of 90 V to 304 VAC, the driver can be operated at the standard North American mains voltages of 120 V or 277 VAC for residential, commercial, and industrial applications. The driver bears safety approval from UL, meeting UL8750, and has outputs that are Class 2 per UL1310, making it appropriate for linear fluorescent replacement installations. Rated for operation between 0°C and 50°C, the PDA037W is water resistant and fully potted with ingress protection ratings of 65. The driver also exhibits high efficiency and reliability, with minimum efficiency ratings ranging from 82 percent at 120VAC input to over 84 percent at 277 VAC input. The calculated lifetime of the PDA037W is 50K hours at full load and an ambient 50°C. The new LED driver comes fully equipped with input over-current protection and short-circuit protection, as well as output over-voltage protection and open-circuit protection. It also features a minimum power factor correction greater than 0.9.