PAM2841

Document number: DS36411 Rev. 2 - 2

1 of 15

www.diodes.com

October 2017

© Diodes Incorporated

PAM2841

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



Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)



Halogen and Antimony Free. “Green” Device (Note 3)

Applications



WLED Driver System

Pin Assignments

(Top View)

MSOP-8

(Top View)

U-DFN2020-8 (Type A)

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com/quality/lead_free.html

for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"

and Lead-free.

3. Halogen- and Antimony-free "Green" products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

Typical Applications Circuit

1

2

3

4

8

7

6

5

PGND

VIN

ENA

Comp

SW

OVP

FB

GND

1

2

3

4

8

7

6

5

PGND

VIN

ENA

Comp

SW

OVP

FB

GND