Multi-Output Backlight LED Drivers for LCD Displays
The ALD drivers are designed to operate with an input voltage of 10.8 to 13.2 VDC and have a maximum open-circuit output voltage of 42 to 44 VDC. The series are ultra thin (5.0 to 5.5 mm) to facilitate easy mounting behind LCD screens with a minimum of space. The two and three string models measure only 21.5-mm high x 85-mm long and the four string drivers are 50-mm high x 100-mm long.
Other features include a remote on/off input and an overvoltage alarm output. The overvoltage alarm serves as an LED open detector. These drivers are convection cooled and designed to operate in ambient temperatures ranging from -30 to 85°C without deratings. Typical operating efficiencies are 90%, which substantially reduces power consumption and unwanted heat.