Mean Well has released the LDD-H series dc-dc LED constant-current driver up to 1200mA/1500mA and has unveiled the LDD-1200 and 1500H/HW models. These two series are both constant current step-down mode power module with 9- to 52-Vdc input and 2- to 46-Vdc output. Having both the PIN style (H-Type) and the wire style (HW-Type), the internally potted design makes them able to withstand water and dust. Both exploit non-isolated buck topology design with a working efficiency up to 96%.
The dimension of the whole LDD-H/HW family are all 31.8 x 20.3 x 12.2 mm; it is convenient for those lighting system designers who have already adopted products from Mean Well but require a higher output current to upgrade by using new drivers directly without changing the initial circuit design.
Features and specifications include: working temperature range of -40 to+85 degrees C; compliance with EMI without any additional components (EN55015 and FCC part 15); short circuit and over temperature protection; 94V-0 flame retardant plastic case; built-in pwm dimming and remote ON/OFF control functions; and FCC/CE approved.
The typical applications of dc-dc LED constant current drivers is to connect them in back of the ac-dc constant-voltage type LED drivers, providing a constant current to drive the LED luminaires that reach the stable constant current state and extend the life-span of the luminaires.
These products are very suitable to be applied to the outdoor or indoor LED lighting systems which utilize the ac-dc LED drivers such as: street lighting, landscape lighting, tunnel lighting, household lighting, commercial lighting, and so on.