LM3424-Q1 datasheet(2/69 Pages) TI1

No de pièce	LM3424-Q1

Description	Constant Current N-Channel Controller with Thermal Foldback for Driving LEDs

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LM3424, LM3424-Q1

SNVS603C – AUGUST 2009 – REVISED AUGUST 2015

www.ti.com

Table of Contents

7.4

Device Functional Modes........................................ 25

1

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

8

Application and Implementation ........................ 26

2

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

8.1

Application Information............................................ 26

3

Description ............................................................. 1

8.2

Typical Applications ................................................ 29

4

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

9

Power Supply Recommendations ...................... 61

5

Pin Configuration and Functions ......................... 3

9.1

Input Supply Current Limit ...................................... 61

6

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

10

Layout................................................................... 61

6.1

Absolute Maximum Ratings ...................................... 4

10.1

Layout Guidelines ................................................. 61

6.2

ESD Ratings—LM3424 ............................................. 4

10.2

Layout Example .................................................... 62

6.3

ESD Ratings—LM3424-Q1 ....................................... 4

11

Device and Documentation Support ................. 63

6.4

Recommended Operating Conditions ....................... 4

11.1

Device Support...................................................... 63

6.5

Thermal Information .................................................. 5

11.2

Related Links ........................................................ 63

6.6

Electrical Characteristics........................................... 6

11.3

Community Resources.......................................... 63

6.7

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

11.4

Trademarks ........................................................... 63

7

Detailed Description ............................................ 11

11.5

Electrostatic Discharge Caution ............................ 63

7.1

Overview ................................................................. 11

11.6

Glossary ................................................................ 63

7.2

Functional Block Diagram ....................................... 11

12

Mechanical, Packaging, and Orderable

7.3

Feature Description................................................. 12

Information ........................................................... 63

4 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision B (October 2009) to Revision C

Page

•

Adjusted temperature range in Features section. .................................................................................................................. 1

•

Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional

Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device

and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .............................. 1

•

Changed "Operating Temperature Range (TJ = −40°C to +125°C)" to "Operating Temperature Range (TA = TJ =

−40°C to +125°C)" in Electrical Characterization table Condition statement ........................................................................ 6

2

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