EUP2983

DS2983 Ver1.2 Nov. 2008

2

Typical Application Circuit

Figure 2. WLED Backlight Application

Pin Configurations

Package Type

Pin

Configurations

TDFN-8

Pin Description

PIN

TDFN-8

DESCRIPTION

1

PGND

Power Ground

2

IN

Input Supply Voltage

3

CTRL

Brightness Control Input. LED brightness is controlled by the voltage applied to CTRL.

Varying the voltage from 0.24V to 1.68V adjusts the brightness from dim to bright,

respectively. Any voltage above 1.68V does not increase brightness.

4

FB

Current-Sense Feedback Input. Connect a resistor from FB to IN to set the LEDs bias

5

COMP

6

GND

Analog Ground.

7

OVP

from OVP to PGND.

8

LX

Inductor Connection. This pin is high impedance during shutdown.