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NUD4001, NSVD4001
High Current LED Driver
This device is designed to replace discrete solutions for driving
LEDs in low voltage AC ? DC applications 5.0 V, 12 V or 24 V. An
external resistor allows the circuit designer to set the drive current for
different LED arrays. This discrete integration technology eliminates
individual components by combining them into a single package,
which results in a significant reduction of both system cost and board
space. The device is a small surface mount package (SO–8).
http://onsemi.com
3
Features
? Supplies Constant LED Current for Varying Input Voltages
? External Resistor Allows Designer to Set Current – up to 500 mA
? Offered in Surface Mount Package Technology (SO ? 8)
? AEC ? Q101 Qualified and PPAP Capable
? NSV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements
? Pb ? Free Package is Available
V in
Boost
R ext
PIN CONFIGURATION
AND SCHEMATIC
1
2
Current
Set Point
8
7
6
I out
I out
I out
G
Benefits
? Maintains a Constant Light Output During Battery Drain
? One Device can be used for Many Different LED Products
? Reduces Board Space and Component Count
? Simplifies Circuit and System Designs
Typical Applications
? Portables: For Battery Back ? up Applications, also Simple Ni ? CAD
Battery Charging
? Industrial: Low Voltage Lighting Applications and Small Appliances
? Automotive: Tail Lights, Directional Lights, Back ? up Light,
Dome Light
PIN FUNCTION DESCRIPTION
GND
8
4
1
4001
A
Y
WW
5 I out
MARKING
DIAGRAM
8
SO ? 8 4001
CASE 751 AYWW
STYLE 25
1
= Specific Device Code
= Assembly Location
= Year
= Work Week
Pin
Symbol
Description
G
= Pb ? Free Device
1
2
3
V in
Boost
R ext
Positive input voltage to the device
This pin may be used to drive an external transistor
as described in the App Note AND8198/D.
An external resistor between R ext and V in pins sets
different current levels for different application needs
ORDERING INFORMATION
Device Package Shipping ?
NUD4001DR2      SO ? 8    2500 / Tape & Reel
4
5, 6, 7, 8
GND
I out
Ground
The LEDs are connected from these pins to ground
NUD4001DR2G
NSVD4001DR2G
SO ? 8
(Pb ? Free)
SO ? 8
2500 / Tape & Reel
2500 / Tape & Reel
(Pb ? Free)
?For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
? Semiconductor Components Industries, LLC, 2011
November, 2011 ? Rev. 7
1
Publication Order Number:
NUD4001/D
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