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LP8556TMX-E06 Datasheet(PDF) 2 Page - Texas Instruments |
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LP8556TMX-E06 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 63 page 2 LP8556 SNVS871I – JULY 2012 – REVISED MARCH 2016 www.ti.com Product Folder Links: LP8556 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated Table of Contents 1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Device Options....................................................... 3 6 Pin Configuration and Functions ......................... 4 7 Specifications......................................................... 6 7.1 Absolute Maximum Ratings ...................................... 6 7.2 ESD Ratings.............................................................. 6 7.3 Recommended Operating Conditions ....................... 6 7.4 Thermal Information .................................................. 6 7.5 Electrical Characteristics........................................... 7 7.6 Electrical Characteristics — Boost Converter .......... 8 7.7 Electrical Characteristics — LED Driver ................... 9 7.8 Electrical Characteristics — PWM Interface ............. 9 7.9 Electrical Characteristics — Logic Interface .......... 10 7.10 I2C Serial Bus Timing Parameters (SDA, SCL) .... 10 7.11 Typical Characteristics .......................................... 11 8 Detailed Description ............................................ 12 8.1 Overview ................................................................. 12 8.2 Functional Block Diagram ....................................... 12 8.3 Feature Description................................................. 13 8.4 Device Functional Modes........................................ 28 8.5 Programming........................................................... 28 8.6 Register Maps ......................................................... 32 9 Application and Implementation ........................ 45 9.1 Application Information............................................ 45 9.2 Typical Application ................................................. 47 10 Power Supply Recommendations ..................... 51 11 Layout................................................................... 51 11.1 Layout Guidelines ................................................. 51 11.2 Layout Examples................................................... 52 12 Device and Documentation Support ................. 54 12.1 Trademarks ........................................................... 54 12.2 Community Resources.......................................... 54 12.3 Electrostatic Discharge Caution ............................ 54 12.4 Glossary ................................................................ 54 13 Mechanical, Packaging, and Orderable Information ........................................................... 54 4 Revision History Changes from Revision H (December 2014) to Revision I Page • Changed "25 mA" to "23 mA" - E00, E08 and E09 SQ rows, E09, E11 TME rows ............................................................... 3 • Changed Handing Ratings table to ESD Ratings .................................................................................................................. 6 • Added updated Thermal Information ..................................................................................................................................... 6 • Changed "8" to "10" in PWMres row ...................................................................................................................................... 9 • Changed subtracted 1 from bit value of all Table 4 "ƒPWM [Hz] (Resolution)" entries ......................................................... 20 • Changed subtracted 1 from bit value of all Table 5 "ƒPWM [Hz] (Resolution)" entries except 2402 .................................... 21 • Changed subtracted 1 from bit value of all Table 11 "ƒPWM [Hz] (Resolution)" entries ....................................................... 45 • Changed "via EPROM" in Table 13 title to "With an External Resistor" ............................................................................. 46 • Changed subtracted 1 from bit values of all Table 13 "ƒPWM [Hz] (Resolution)" entries except 2402 ................................. 46 Changes from Revision G (November 2013) to Revision H Page • Added Pin Configuration and Functions section, Handling 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 Changes from Revision E (August 2013) to Revision G Page • Changed Description of "1=" for OCP row in Fault table, STATUS Register Section.......................................................... 34 • Changed A7h values for E02, E03, E04, E06, E07, E09, E11 DSGBA EPROM Bit Explanations tables ........................... 36 • Deleted E00, E01, E08, E10, E12, E13 columns and A8H row from 3 EPROM Bit Explanations table.............................. 36 • Changed values for E00, E08, E09 WQFN EPROM Settings table..................................................................................... 37 |
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