ZLED7010-ZI1R datasheet(15/24 Pages) ETC2

номер детали	ZLED7010-ZI1R

подробное описание детали	40V LED Driver with Temperature Compensation

PDF	24 Pages

Scroll/Zoom	100%

производитель	ETC2 [List of Unclassifed Manufacturers]

домашняя страница

Logo

15 / 24 page

ZLED7010

40V LED Driver with Temperature Compensation

Data Sheet

August 12, 2010

prior written consent of the copyright owner. The information furnished in this publication is PRELIMINARY and subject to changes

without notice.

15 of 23

3.4.

Output Ripple

Shunt a capacitor CLED across the LED(s) as shown in Figure 3.1 to minimize the peak-to-peak ripple current in

the LED if necessary.

Figure 3.1

Output Ripple Reduction

Low-ESR capacitors should be used because the efficiency of CLED largely depends on its ESR and the

dynamic resistance of the LED(s). For an increased number of LEDs, using the same capacitor will be more

effective. Lower ripple can be achieved with higher capacitor values, but it will increase start-up delay by

reducing the slope of the LED voltage. The capacitor will not affect operating frequency or efficiency. For a

simulation or bench optimization, CLED values of a few μF are an applicable start point for the given

configuration.

ZLED7010-ZI1R датащи(PDF) 15 Page - List of Unclassifed Manufacturers