PAM2841

Document number: DSxxxxx Rev. 1 - 5

1 of 16

www.diodes.com

September 2013

© Diodes Incorporated

PAM2841

A Product Line of

Diodes Incorporated

1.5A SW CURRENT, 40V PRECISION WLED DRIVER

Description

The PAM2841 is a white LED driver, capable of driving 10 or more

WLEDs in series (depending on forward voltage of the LEDs) with a

range of input voltages from 2.7V to 5.5V.

The PAM2841 features over current protection, over voltage

protection, under voltage lockout and over temperature protection,

which prevent the device from damage.

LED dimming can be done by four methods as described in the

Application Information hereinafter.

Features



Capable of Driving 10 or More WLEDs



Chip Enable with Soft-Start



Analog and PWM Dimming



Peak Efficiency up to 90%



Low Quiescent Current



Fixed Frequency of 1MHz



Over Current Protection



Over Voltage Protection



Thermal Protection



UVLO



Tiny Pb-Free Packages (RoHS Compliant):

MSOP-8 and DFN 2X2

Applications



WLED Driver System

Pin Assignments

Typical Applications Circuit