Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

LM3503 Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LM3503
Description  Dual-Display Constant Current LED Driver with Analog Brightness Control
Download  20 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo 

LM3503 Datasheet(HTML) 1 Page - National Semiconductor (TI)

 
Zoom Inzoom in Zoom Outzoom out
 1 / 20 page
background image
LM3503
Dual-Display Constant Current LED Driver with Analog
Brightness Control
General Description
The LM3503 is a white LED driver for lighting applications.
For dual display backlighting applications, the LM3503 pro-
vides a complete solution. The LM3503 contains two internal
white LED current bypass FET (Field Effect Transistor)
switches. The white LED current can be adjusted with a DC
voltage from a digital to analog converter or RC filtered PWM
(pulse-width-modulated) signal at the Cntrl pin.
With no external compensation, cycle-by-cycle current limit,
output over-voltage protection, input under-voltage protec-
tion, and dynamic white LED current control capability, the
LM3503 offers superior performance over other step-up
white LED drivers.
Features
n
Drives up to 4, 6, 8 or 10 White LEDs for Dual Display
Backlighting
n >
80% Peak Efficiency
n
Output Voltage Protection Options: 16V, 25V, 35V & 44V
n
Input Under-Voltage Protection
n
Internal Soft Start Eliminates Inrush Current
n
1 MHz Constant-Switching Frequency
n
Analog Brightness Control
n
Wide Input Voltage Range: 2.5V to 5.5V
n
Low Profile Packages: <1 mm Height
— 10 Bump MicroSMD
— 16 Pin LLP
Applications
n
Dual-Display Display Backlighting in Portable devices
n
Cellular Phones and PDAs
Typical Application
20128662
July 2005
© 2005 National Semiconductor Corporation
DS201286
www.national.com


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn