ADD5205

Data Sheet

Rev. 0 | Page 2 of 16

TABLE OF CONTENTS

Features .............................................................................................. 1

 

Applications....................................................................................... 1

 

Functional Block Diagram .............................................................. 1

 

General Description ......................................................................... 1

 

Revision History ............................................................................... 2

 

Functional Block Diagram .............................................................. 3

 

Specifications..................................................................................... 4

 

Absolute Maximum Ratings............................................................ 6

 

Thermal Resistance ...................................................................... 6

 

ESD Caution.................................................................................. 6

 

Pin Configuration and Function Descriptions............................. 7

 

Typical Performance Characteristics ..............................................8

 

Theory of Operation ...................................................................... 10

 

Current Mode, Stepup Switching Regulator Operation........ 10

 

Current Source............................................................................ 10

 

PWM Dimming Mode .............................................................. 10

 

Safety Features ............................................................................ 10

 

External Component Selection Guide..................................... 11

 

Layout Guidelines....................................................................... 12

 

Typical Application Circuit ........................................................... 13

 

Outline Dimensions ....................................................................... 14

 

Ordering Guide .......................................................................... 14

 

REVISION HISTORY

8/11—Revision 0: Initial Version