ZLED7530 Datasheet, PDF (5/24 Pages) List of Unclassifed Manufacturers – High Current 40V LED Driver with Switch Dimming

ZLED7530
High Current 40V LED Driver with Switch Dimming
List of Figures
Figure 1.1
Figure 1.2
Figure 1.3
Figure 1.4
Figure 1.5
ZLED7x30 Supply Operating Current vs. Input Supply Voltage (VIN = 8.5 to 40V) ......................................... 8
Efficiency (%) vs. Input Supply Voltage (VIN = 8.5 to 40V) Per Number of LEDs (Rs=0.10Ω, L1=47µH)........ 8
Efficiency vs. Input Supply Voltage (VIN = 8.5 to 40V) Per Number of LEDs (Rs=0.15Ω, L1=47µH) .............. 9
Efficiency vs. Input Supply Voltage (VIN = 8.5 to 40V)^‡ Per Number of LEDs (Rs=0.30Ω, L1=47µH)............. 9
Output Current Variation vs. Input Supply Voltage (VIN = 8.5 to 40V) Per Number of LEDs
(Rs=0.15Ω, L1=47µH) .................................................................................................................................. 10
Figure 1.6
Figure 1.7
Sense Voltage vs. Operating Temperature (Rs=0.10Ω, L1=47µH, VIN = 40 V) ............................................ 10
Switch Dimming Waveform (Dimming Mode 2) ............................................................................................ 11
Figure 1.8
Figure 3.1
LED Open-Circuit Protection (Rs=0.30Ω, L1=47µH, VIN = 24 V) .................................................................. 12
ZLED7x30 Application Circuit for Switch Dimming ....................................................................................... 15
Figure 3.2 Basic ZLED7x30 Application Circuit with Output Current Determined only by Rs ........................................ 15
Figure 3.3 ZLED7x30 Application Circuit using a Halogen Electronic Transformer to Operate with AC Line Supply .... 16
Figure 5.1 ZLED7x30 Pin Configuration ........................................................................................................................ 21
List of Tables
Table 2.1 Dimming Configuration Options.................................................................................................................... 14
Table 3.1
Table 5.1
Recommended Values for Sense Resistor Rs.............................................................................................. 17
ZLED7x30 Pin Descriptions—SOP-8 Package............................................................................................. 21
Table 5.2 Package Dimensions SOP-8 ........................................................................................................................ 22
Data Sheet
August 16, 2011
© 2011 Zentrum Mikroelektronik Dresden AG — Rev.1.2
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without
the prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
5 of 23