Datasheet TLC5940 (Texas Instruments) - 3

TLC5940 www.ti.com
SLVS515D – DECEMBER 2004 – REVISED NOVEMBER 2015
5 Pin Configuration and Functions PWP Package NT Package 28-Pin HTSSOP 28-Pin PDIP Top View Top View
GND 1 28 VCC OUT1 1 28 OUT0 BLANK 2 27 IREF OUT2 2 27 VPRG XLAT 3 26 DCPRG SCLK 4 25 OUT3 GSCLK 3 26 SIN SIN 5 24 SOUT OUT4 4 25 SCLK VPRG 6 23 XERR OUT5 5 24 XLAT
Thermal
OUT0 7 22 OUT15
PAD
OUT6 6 23 BLANK OUT1 8 21 OUT14 OUT7 7 22 GND OUT2 9 20 OUT13 OUT3 10 19 OUT12 OUT8 8 21 VCC OUT4 11 18 OUT11 OUT9 9 20 IREF OUT5 12 17 OUT10 OUT10 10 19 DCPRG OUT6 13 16 OUT9 OUT11 11 18 GSCLK OUT7 14 15 OUT8 OUT12 12 17 SOUT OUT13 13 16 XERR OUT14 14 15 OUT15
RHB Package 32-Pin VQFN Top View
1 GSCLK SOUT XERR OUT15 OUT14 OUT13 OUT12 OUT1 24 23 22 21 20 19 18 17 DCPRG 25 16 OUT10 IREF 26 15 OUT9 VCC 27 14 OUT8 NC 28 THERMAL 13 NC NC 29 PAD 12 NC GND 30 11 OUT7 BLANK 31 10 OUT6 XLAT 32 9 OUT5 1 2 3 4 5 6 7 8 SIN SCLK OUT0 OUT1 OUT2 OUT3 OUT4 VPRG NC – No internal connection Copyright © 2004–2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: TLC5940 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Pin Configuration and Functions 6 Specifications 6.1 Absolute Maximum Ratings 6.2 ESD Ratings 6.3 Recommended Operating Conditions 6.4 Thermal Information 6.5 Electrical Characteristics 6.6 Switching Characteristics 6.7 Typical Characteristics 7 Parameter Measurement Information 7.1 Test Parameter Equations 8 Detailed Description 8.1 Overview 8.2 Functional Block Diagram 8.3 Feature Description 8.3.1 Serial Interface 8.3.2 Error Information Output 8.3.3 TEF: Thermal Error Flag 8.3.4 LOD: LED Open Detection 8.3.5 Delay Between Outputs 8.3.6 Output Enable 8.3.7 Setting Maximum Channel Current 8.4 Device Functional Modes 8.4.1 Operating Modes 8.4.2 Setting DOT Correction 8.4.3 Setting Grayscale 8.4.4 Status Information Output 8.4.5 Grayscale PWM Operation 9 Application and Implementation 9.1 Application Information 9.2 Typical Application 9.2.1 Design Requirements 9.2.2 Detailed Design Procedure 9.2.2.1 Serial Data Transfer Rate 9.2.2.2 Grayscale (GS) Data 9.2.3 Application Curve 10 Power Supply Recommendations 11 Layout 11.1 Layout Guidelines 11.2 Layout Example 11.3 Power Dissipation Calculation 12 Device and Documentation Support 12.1 Community Resources 12.2 Trademarks 12.3 Electrostatic Discharge Caution 12.4 Glossary 13 Mechanical, Packaging, and Orderable Information