DN84 ZXSC400 Driving 3W high power LEDs
Ray Liu, Applications Engineer, Zetex Semiconductors
Description
This design note shows the ZXSC400 driving a single 3W LED. The input voltage ranges from 1.8V to 3.6V with constant output current of 700mA down to 2.6V with an overall 80% of efficiency.
Figure 1 shows typical constant current solution with ZXSC400 dri...
