ZLED7001

Universal LED Driver with Temperature Compensation

Data Sheet

August 12, 2010

© 2010 Zentrum Mikroelektronik Dresden AG — Rev. 1.1

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.

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Contents

1

IC Characteristics .......................................................................................................................................................... 5

1.1.

Absolute Maximum Ratings ................................................................................................................................... 5

1.2.

Operating Conditions ............................................................................................................................................. 5

1.3.

Electrical Parameters............................................................................................................................................. 5

2

Circuit Description ......................................................................................................................................................... 7

2.1.

ZLED7001 Block Diagram ..................................................................................................................................... 7

2.2.

Application Signal Flow.......................................................................................................................................... 7

2.3.

Input Voltage Regulator ......................................................................................................................................... 8

2.4.

Current Sensing..................................................................................................................................................... 9

2.5.

Timing Circuit......................................................................................................................................................... 9

2.6.

PWM Dimming Application Circuit ......................................................................................................................... 9

2.7.

Linear Dimming Application Circuit ........................................................................................................................ 9

2.8.

Temperature Compensation ................................................................................................................................ 10

2.9.

Design Example................................................................................................................................................... 10

3

ESD/Latch-Up-Protection ............................................................................................................................................ 12

4

Pin Configuration and Package................................................................................................................................... 13

5

Ordering Information ................................................................................................................................................... 15

6

Document Revision History ......................................................................................................................................... 15

List of Figures

Figure 2.1

Input Current .................................................................................................................................................. 8

Figure 4.1

Pin Configuration ZLED7001........................................................................................................................ 13

Figure 4.2

Package Drawing SOP-8.............................................................................................................................. 14

List of Tables

Table 1.1

Absolute Maximum Ratings............................................................................................................................ 5

Table 1.2

Operating Conditions...................................................................................................................................... 5

Table 1.3

Electrical Conditions ....................................................................................................................................... 5

Table 4.1

Pin Description SOP-8.................................................................................................................................. 13

Table 4.2

Package Dimensions SOP-8 ........................................................................................................................ 14