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LP55231

SNOSCR5D – MARCH 2013 – REVISED DECEMBER 2016

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Copyright © 2013–2016, Texas Instruments Incorporated

Table of Contents

1

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

2

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

3

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

4

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

5

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

6

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

6.1

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

6.2

ESD Ratings.............................................................. 4

6.3

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

6.4

Thermal Information .................................................. 4

6.5

Electrical Characteristics........................................... 5

6.6

Charge Pump Electrical Characteristics ................... 5

6.7

LED Driver Electrical Characteristics ........................ 6

6.8

LED Test Electrical Characteristics........................... 6

6.9

Logic Interface Characteristics.................................. 6

6.10

Recommended External Clock Source Conditions . 7

6.11

Serial Bus Timing Parameters (SDA, SCL) ............ 7

6.12

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

7

Detailed Description ............................................ 10

7.1

Overview ................................................................. 10

7.2

Functional Block Diagram ....................................... 10

7.3

Feature Description................................................. 11

7.4

Device Functional Modes........................................ 17

7.5

Programming........................................................... 18

7.6

Register Maps ......................................................... 20

8

Application and Implementation ........................ 46

8.1

Application Information............................................ 46

8.2

Typical Applications ................................................ 46

9

Power Supply Recommendations ...................... 50

10

Layout................................................................... 50

10.1

Layout Guidelines ................................................. 50

10.2

Layout Example .................................................... 50

11

Device and Documentation Support ................. 51

11.1

Device Support...................................................... 51

11.2

Trademarks ........................................................... 51

11.3

Receiving Notification of Documentation Updates 51

11.4

Community Resources.......................................... 51

11.5

Electrostatic Discharge Caution ............................ 51

11.6

Glossary ................................................................ 51

12

Mechanical, Packaging, and Orderable

Information ........................................................... 51

4 Revision History

Changes from Revision C (November 2016) to Revision D

Page

•

Added top nav icon for TI Designs ........................................................................................................................................ 1

•

Changed variable 1 spanning to go from Bit [3] to Bit [2] and variable 2 span from Bit [1] to Bit [0] in table 7 .................. 39

Changes from Revision B (May 2016) to Revision C

Page

•

Changed wording of data sheet title....................................................................................................................................... 1

Changes from Revision A (October 2014) to Revision B

Page

•

Added several new Applications ............................................................................................................................................ 1

•

Changed Handling Ratings to ESD Ratings; moved storage temperature to Abs Max table ............................................... 4

•

Changed RθJA value from 36.6C/W to 33.3C/W; add additional thermal information ............................................................. 4

•

Added Community Resources section ................................................................................................................................ 51

Changes from Original (March 2013) to Revision A

Page

•

Added Device Information and Handling Rating tables, Feature Description, Device Functional Modes, Application

and Implementation, Power Supply Recommendations, Layout, Device and Documentation Support, and

Mechanical, Packaging, and Orderable Information sections; moved some curves to Application Curves section ............. 1