ZLED7002

Toggle (Side-Step) Dual-Channel LED Driver

Data Sheet

August 10, 2011

© 2011 Zentrum Mikroelektronik Dresden AG — Rev.3.0

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

1.4.

Typical Performance Graphs ................................................................................................................................. 6

2

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

2.1.

ZLED7002 Overview.............................................................................................................................................. 7

2.2.

Under-Voltage Threshold ....................................................................................................................................... 8

2.3.

Main LED Current .................................................................................................................................................. 8

2.4.

Sub LED Current.................................................................................................................................................... 8

2.5.

ZLED7002 Protection Features.............................................................................................................................. 9

2.5.1.

Over-Temperature Protection ......................................................................................................................... 9

2.5.2.

Main LED Short-Circuit Protection .................................................................................................................. 9

3

Application Circuit Design............................................................................................................................................ 10

3.1.

Applications.......................................................................................................................................................... 10

3.2.

Application Circuit Layout Requirements ............................................................................................................. 10

4

ESD Protection............................................................................................................................................................ 11

5

Pin Configuration and Package ................................................................................................................................... 11

6

Ordering Information ................................................................................................................................................... 13

7

Document Revision History ......................................................................................................................................... 13

List of Figures

Figure 1.1

Iset Pin Voltage versus Temperature (+10°C to 100°C) ................................................................................. 6

Figure 1.2

Main LED Current versus Power Supply (4V to 5.4V DC) .............................................................................. 7

Figure 3.1

Basic ZLED7002 Application Circuit ............................................................................................................. 10

Figure 5.1

ZLED7002 Pin Configuration ........................................................................................................................ 11

Figure 5.2

SOP8 Package Drawing............................................................................................................................... 12

List of Tables

Table 5.1

ZLED7002 Pin Descriptions and Connection Requirements—SOP8 Package ............................................ 11

Table 5.2

SOP8 Package Dimensions ......................................................................................................................... 12