The LDU series of PCB mount dc-input constant current LED drivers feature four models with power outputs of 5, 7, 14 and 20 W. They have a typical efficiency of 93% for the 5 to 14-W models and 95% for the 20-W devices. The LDU20 series provides up to 700mA output current, and the LDU05, 07 and 14 series have a maximum output of 1,000 mA. They suit indoor, outdoor, underwater, automotive LED lighting application, and also for battery powered applications.
The LED drivers accommodate input voltages from 7 to 30 Vdc. Dimming options include two analog methods (voltage or resistance) and a pulse width modulation input signal. The PWM approach has a maximum operating frequency of 1 kHz, with a minimum 200–ns on/off time. The analog dimming method can adjust the output current from 25% to 100% of nominal current. (From $7.02 ea/500 — available now.)
By Paul O’Shea
XP Power , Sunnyvale , CA
Duane Darrow 408-732-7777
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