ZLED7012

Low-Voltage Four-Channel LED Driver

Data Sheet

November 9, 2010

© 2010

Zentrum Mikroelektronik Dresden AG — Rev. 1.0

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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Table 6.1

Layout Requirements and Pin Descriptions—12-pin UTQFN Package

Pin

Name

No.

Description

D0

1

LED output channel; pin must be used.

Vout

2

Charge pump output that drives load circuits; a 2.2μF (typical) capacitor must be connected from Vout to

GND pin.

Vcc

3

Power supply input; a 2.2μF (minimum) bypass capacitor must be connected from Vcc to GND pin.

C+

4

Positive terminal of external pump capacitor.

C-

5

Negative terminal of external pump capacitor.

EN/SET

6

PCC serial input for enabling/disabling LEDs and setting current levels.

GND

7

Ground.

NC

8

No connection.

NC

9

No connection.

D3

10

LED output; if not used, connect to ground to avoid noise coupling.

D2

11

LED output; if not used, connect to ground to avoid noise coupling.

D1

12

LED output; if not used, connect to ground to avoid noise coupling.

Figure 6.2

UTQFN-12 Package Drawing

A1

A

A2

Side View

Pin 1

D

b

e

E

Bottom View

Table 6.2

UTQFN-12 Package Dimensions

Dimension

(mm)

Symbol

Min

Nom

Max

Symbol

Min

Nom

Max

A

0.50

0.55

0.60

D

1.95

2.00

2.05

A1

0.00

--

0.05

E

1.95

2.00

2.05

A2

0.25

e

0.50

b

0.20

0.25

0.30