AD8240
TABLE OF CONTENTS
Using/Evaluating the AD8240 LED Driver Monitor....................6
Setup................................................................................................6
Controlling the LED lamp............................................................7
Using/Evaluating the VSense Output .............................................7
Advantages of Driving LED Lamps with Constant Voltage ........8
Background....................................................................................8
Monitoring the LEDs ....................................................................8
Driving Automotive LEDs............................................................8
Outline Dimensions....................................................................... 10
Ordering Guide .......................................................................... 11
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
Product Description......................................................................... 5
Linear Regulator (Block A) ......................................................... 5
High-Side Current-Sense Amplifier with Open LED
Detection (Block B)...................................................................... 5
Comparator with Latch-off OverCurrent Protection
(Block C)........................................................................................ 5
Intelligent Driver (Block D)........................................................ 5
REVISION HISTORY
4/04—Revision 0: Initial Version
Rev. 0 | Page 2 of 12
ADI [ ADI ]
