ZLED7730

High Current 40V LED Driver with Switch Dimming

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.

21 of 23

minimize this effect.

by internal circuitry. Avoid running high voltage traces close to the DIM pins.

4

ESD Protection

All pins have an ESD protection of

≥ ±3000V according to the Human Body Model (HBM). The ESD test follows

the Human Body Model with 1.5 k /100 pF based on MIL 883-H, Method 3015.8.

5

Pin Configuration and Package

Figure 5.1

ZLED7x30 Pin Configuration

Table 5.1

ZLED7x30 Pin Descriptions—SOP-8 Package

Pin

No.

Description (Also see section 3.3 for layout guidelines)

1

Input voltage (8.5V to 40V).

2

NC

3

Not connected; keep floating.

NC

4

Not connected; keep floating.

DIM2

5

Set the number of current levels and current ratio of each level of switch dimming function as follows:

DIM1 Pin

DIM2 Pin

Dimming Mode

Floating

Floating

No dimming

Floating

GND

Three levels: 100%, 50%, 20%

GND

Floating

Three levels: 100%, 60%, 30%

GND

GND

Two levels: 100%, 30%

DIM1

6

GND

7

Connect to GND.

LX

8

Drain of internal power switch