Issue 3 - July 2006 1 www.zetex.com
© Zetex Semiconductors plc 2006
DN62
ZXSC310 Solution to drive 3 LEDs connected in series
Description
This solution is optimized for an input voltage range of 4.3V to 3V. The LED current is set to 15mA
V
IN
= 4.3V and 8mA at V
IN
= 3V.
Figure 1 Schematic diagram
Figure 2 Performance graphs
ZXSC310