Table of Contents

www.ti.com

User’s Guide

TLC6C5748EVM User's Guide

ABSTRACTThe Texas Instruments TLC6C5748EVM evaluation module (EVM) helps the users to evaluate the features andperformance of the TLC6C5748-Q1 device. This document includes hardware setup instructions, software
instructions, a complete schematic diagram, printed-circuit board (PCB) layout drawings and bill of materials(BOM) of the TLC6C5748EVM.

Table of Contents
1 Introduction.............................................................................................................................................................................2
1.1 Features............................................................................................................................................................................. 2
1.2 Applications........................................................................................................................................................................2
2 Test Setup................................................................................................................................................................................3
2.1 The TLC6C5748EVM Kit....................................................................................................................................................3
2.2 System/Equipment Requirements......................................................................................................................................32.3 Software Setup...................................................................................................................................................................42.4 Hardware Setup................................................................................................................................................................. 5
2.5 Test Procedure................................................................................................................................................................... 73 Configuration of MCU Launchpad.........................................................................................................................................84 TLC6C5748EVM Board Layout.............................................................................................................................................. 95 TLC6C5748EVM Schematic..................................................................................................................................................116 TLC6C5748EVM Bill of Materials.........................................................................................................................................12
7 Revision History................................................................................................................................................................... 14

List of Figures
Figure 2-1. The TLC6C5748EVM Kit...........................................................................................................................................3Figure 2-2. MSP-EXP432P401 Launchpad Kit............................................................................................................................4Figure 2-3. Select components when install CCS IDE................................................................................................................ 4Figure 2-4. Compile and Debug Project in CCS IDE................................................................................................................... 5Figure 2-5. Download the Sample Code to MCU........................................................................................................................ 5Figure 2-6. TLC6C5748EVM Hardware Setup............................................................................................................................ 5
Figure 2-7. The direction of BoosterPack.................................................................................................................................... 6
Figure 2-8. Connect MCU Launchpad to PC............................................................................................................................... 6Figure 2-9. Input and Output Interface of MCU Launchpad.........................................................................................................7Figure 4-1. TLC6C5748EVM Layout........................................................................................................................................... 9
Figure 4-2. TLC6C5748EVM Layout - Top................................................................................................................................ 10
Figure 4-3. TLC6C5748EVM Layout - Bottom...........................................................................................................................10
Figure 5-1. TLC6C5748EVM Schematic....................................................................................................................................11

List of Tables
Table 3-1. Hardware Configuration of MCU Launchpad.............................................................................................................. 8
Table 6-1. TLC6C5748EVM Bill of Materials............................................................................................................................. 12

Trademarks
All trademarks are the property of their respective owners.

SLVUC16 – OCTOBER 2020
Submit Document Feedback

TLC6C5748EVM User's Guide
Copyright © 2020 Texas Instruments Incorporated1

Introduction

www.ti.com

1 Introduction
The TLC6C5748EVM helps users to evaluate the characteristics, operation, and use of the TLC6C5748-Q1
device, a 48-channel, 16-bit, PWM LED driver with internal current settings mainly designed for automotive local
dimming backlight. Each channel has an individually adjustable, pulse width modulation (PWM), grayscale (GS)brightness control with 65,536 steps and 128 steps of constant-current dot correction (DC). DC adjusts
brightness deviation between channels. All channels have a 128-step global brightness control (BC). BC adjusts
brightness deviation between the R, G, B color group. The eight-step maximum current control (MC) selects themaximum output current range for all channels of each color group. GS, DC, BC, and MC data are accessible
with a serial interface port.

1.1 Features
The EVM has the following features:•••••••

48 outputs with 7-bit DC for each output
16-bit PWM constant-current with 7bit brightness control (BC) and 3-bit max current control (MC) for 31.9 mA,
no external RIREF resister
Precise constant current regulation
Low headroom voltage
LED open/short detection
Over temperature detection
7-uA consumption at power save mode

1.2 Applications
•••••
•

2

Automotive Local Dimming Backlight
Automotive Center Information Display
Automotive Cluster Display
Head-Up Display
Automotive Lighting
Automotive RGB Display

TLC6C5748EVM User's Guide

SLVUC16 – OCTOBER 2020Submit Document Feedback
Copyright © 2020 Texas Instruments Incorporated

www.ti.comTest Setup

2 Test Setup
This section describes how to properly connect and setup the TLC6C5748EVM.

2.1 The TLC6C5748EVM Kit
The TLC6C5748EVM kit contains (see Figure 2-1):• TLC6C5748EVM

Figure 2-1. The TLC6C5748EVM Kit

2.2 System/Equipment Requirements
••
•
•
•

Power supply: A dc power supply capable of supplying 12 V/5 A
Test Leads and other cabling: banana to clip test leads × 2MSP-EXP432P401 Launchpad kit(see Figure 2-2): MSP-EXP432P401 Launchpad & Micro USB cable
PC with Windows 10 OS
Software: CCS IDESLVUC16 – OCTOBER 2020
Submit Document Feedback

TLC6C5748EVM User's GuideCopyright © 2020 Texas Instruments Incorporated3

www.ti.com

Test Setup

Figure 2-2. MSP-EXP432P401 Launchpad Kit

2.3 Software Setup
Step 1: Download the CCS IDE and follow the installation instructions. Choose "SimpleLink MSP432 low power+ performance MCUs components" when choosing support device if custom installation is selected, as shown inFigure 2-3.

Figure 2-3. Select components when install CCS IDE
Step 2: Download and install the MSP432 SDK.
Step 3: Download the sample code from the TLC6C5748EVM tools folder and import the sample code according
to the Importing a CCS Project steps.
4

TLC6C5748EVM User's Guide

SLVUC16 – OCTOBER 2020
Submit Document Feedback
Copyright © 2020 Texas Instruments Incorporated

Test Setup

www.ti.com

Step 4: If the project can’t be imported, please try to install the latest version of ti-cgt.
Step 5: Power on the MSP-EXP432P401 Launchpad. The Launchpad should be connected to the PC as shownin Figure 2-5 using the Micro USB cable provided in the Launchpad kit. Debug the project and download thesample code to MSP-EXP432P401 Launchpad according to the Building and Running Your Project steps.
Pressing the button shown in Figure 2-4 can also compile and debug the sample code. There will be no errors if
all the previous steps are correct.

Figure 2-4. Compile and Debug Project in CCS IDE

Figure 2-5. Download the Sample Code to MCU

Step 6: Terminate the project and then power down the MCU.

2.4 Hardware Setup
Connect the computer, DC power supply, MSP-EXP432P401 Launchpad and TLC6C5748EVM as shown in
Figure 2-6.

Figure 2-6. TLC6C5748EVM Hardware Setup
The detailed steps are listed as follows.
Step 1: With the 12-V DC power supply disconnected from the TLC6C5748EVM, set the DC power supply to
7.5-V DC. Set current limit to 3 A.

SLVUC16 – OCTOBER 2020
Submit Document Feedback

TLC6C5748EVM User's GuideCopyright © 2020 Texas Instruments Incorporated

5

www.ti.com

Test Setup

Step 2: Use banana to clip test leads to connect the DC power supply between the VLED and GND terminals onTLC6C5748EVM board.
Step 3: EVM testing requires MSP-EXP432P401 Launchpad, which can be ordered from TI store. Plug MSPEXP432P401 Launchpad into TLC6C5748EVM using BoosterPack Headers in the direction as shown in Figure
2-7.

Figure 2-7. The direction of BoosterPack
Step 4: The Launchpad is connected to the PC as shown in Figure 2-8 using the Micro USB cable provided inLaunchpad kit.

Figure 2-8. Connect MCU Launchpad to PC

6TLC6C5748EVM User's Guide

SLVUC16 – OCTOBER 2020
Submit Document Feedback
Copyright © 2020 Texas Instruments Incorporated

www.ti.com

Test Setup

2.5 Test Procedure

9Step 1: Power on the DC power supply and reset MSP-EXP432P401 Launchpad. The reset button is shown inFigure 2-9.

LED2Reset

LED1

S1Figure 2-9. Input and Output Interface of MCU Launchpad
Step 2: All white LEDs of TLC6C5748EVM board will be on and LED2 is on with green color if there are noproblems. Otherwise, The LED1 and LED2 shown in Figure 2-9 will be on with red, blue or purple color toindicate the specific fault. The control signals of TLC6C5748-Q1 and the meanings of different status of LED1and LED2 are summarized in Table 3-1. The number of LED short and LED open fault can be read backrespectively through expressions in CCS along with the location of fault pins. Please refer to the concrete steps
for adding watching expressions in CCS IDE. The meaning of fault data can be found from the comments inUser_Param_Config.h file in the project of the sample code.
Step 3: Press S1 of MSP-EXP432P401 Launchpad shown in Figure 2-9 will switch the brightness of all TheLEDs.
Step 4: Turn off the power supply and disconnect the MSP-EXP432P401 Launchpad from the PC. Thendisconnect the MSP-EXP432P401 Launchpad from the TLC6C5748EVM.

SLVUC16 – OCTOBER 2020
Submit Document Feedback

TLC6C5748EVM User's Guide
Copyright © 2020 Texas Instruments Incorporated

7

Configuration of MCU Launchpad

www.ti.com

3 Configuration of MCU Launchpad
Table 3-1. Hardware Configuration of MCU Launchpad
Pin Number

8SignalDescription

P1.5

SCLK

Control signal of TLC6C5748-Q1

P1.6

TCON-SOUT

Control signal of TLC6C5748-Q1

P1.7TCON-SIN

Control signal of TLC6C5748-Q1

P5.6

LATCH

Control signal of TLC6C5748-Q1

P2.4

GSCLK

Control signal of TLC6C5748-Q1

S1

LED brightness switch

Switch between two user-defined brightness

LED1

Coummunication fault

Red color for coummunication fault

RGB LED2

LED open and short fault

Green color for no fault, blue color for LED
open fault, red color for LED short fault,
purple color for LED open and short fault

S3

Reset button of MCU

Reset MCU after powering up when all thehardware setup has been finished

TLC6C5748EVM User's Guide

SLVUC16 – OCTOBER 2020
Submit Document Feedback
Copyright © 2020 Texas Instruments Incorporated

www.ti.com

TLC6C5748EVM Board Layout

4 TLC6C5748EVM Board Layout
Figure 4-1, Figure 4-2 and Figure 4-3 illustrate the EVM board layout.

Figure 4-1. TLC6C5748EVM Layout

SLVUC16 – OCTOBER 2020
Submit Document Feedback

TLC6C5748EVM User's Guide
Copyright © 2020 Texas Instruments Incorporated

9www.ti.com

TLC6C5748EVM Board Layout

Figure 4-2. TLC6C5748EVM Layout - Top

Figure 4-3. TLC6C5748EVM Layout - Bottom

10

TLC6C5748EVM User's Guide

SLVUC16 – OCTOBER 2020
Submit Document Feedback
Copyright © 2020 Texas Instruments Incorporated

www.ti.com

TLC6C5748EVM Schematic

5 TLC6C5748EVM Schematic
Figure 5-1 shows the TLC6C5748EVM schematic.

Figure 5-1. TLC6C5748EVM Schematic

SLVUC16 – OCTOBER 2020
Submit Document Feedback

TLC6C5748EVM User's Guide
Copyright © 2020 Texas Instruments Incorporated

11

TLC6C5748EVM Bill of Materials

www.ti.com

6 TLC6C5748EVM Bill of Materials
Table 6-1 lists the bill of materials of the TLC6C5748EVM.
Table 6-1. TLC6C5748EVM Bill of Materials
Designator

12

QTY

Value!PCB1

1C1, C2, C3,C4

4

Description

Package
Reference

Printed Circuit
Board
4.7 uF

Part Number

Manufacturer

PSIL124

Any

CAP, CERM, 4.7
uF, 25 V, +/- 10%,
X7R, 1206

1206

C3216X7R1E475
K085ABTDK

PLCC4

LW E6SG-AABAJKPL-1-30-R18-Z

OSRAM

D1, D2, D3,
D4, D5, D6,
D7, D8, D9,
D10, D11,
D12, D13,
D14, D15,
D16, D17,
D18, D19,
D20, D21,
D22, D23,
D24, D25,
D26, D27,
D28, D29,
D30, D31,D32, D33,
D34, D35,
D36, D37,
D38, D39,
D40, D41,
D42, D43,
D44, D45,
D46, D47,
D48, D49,
D50, D51,
D52, D53,
D54, D55,
D56, D57,
D58, D59,
D60, D61,
D62, D63,
D64, D65,
D66, D67,
D68, D69,
D70, D71,
D72, D73,
D74, D75,
D76, D77,
D78, D79,
D80, D81,
D82, D83,
D84, D85,
D86, D87,
D88, D89,
D90, D91,
D92, D93,
D94, D95,
D96

96

White LED
Indication Discrete 3.3 V 4PLCC

H1, H2, H3,H4

4

Machine Screw,Round, #4-40 x
1/4, Nylon, Philips
panheadScrew

NY PMS 440
0025 PH

B&F FastenerSupplyH5, H6, H7,H84Standoff, Hex,0.5"L #4-40 Nylon

Standoff

1902C

Keystone

TLC6C5748EVM User's Guide

SLVUC16 – OCTOBER 2020
Submit Document Feedback
Copyright © 2020 Texas Instruments Incorporated

www.ti.com

TLC6C5748EVM Bill of Materials

Table 6-1. TLC6C5748EVM Bill of Materials (continued)
Designator

QTY

Value

DescriptionPackage
Reference

Part Number

Manufacturer

J1, J6, J7, J8,J9, J10, J11,
J12, J13, J14,
J15, J16, J17,
J22, J23, J24,
J25, J26, J27,
J28, J29, J30,
J31, J32, J33,
J37, J38, J39,
J40, J41, J42,
J43, J44, J45,
J46, J47, J48,
J52, J53, J54,
J55, J56, J57,
J58, J59, J60,
J61, J62, J63

49

Header, 100 mil, 2x 1, Gold, TH

Sullins 100 mil, 1 x2, 230 mil above
insulator

PBC02SAAN

Sullins ConnectorSolutions

J1/J3, J2/J4

2Receptacle, 2.54mm, 10 x 2, Tin,TH

10 x 2 Receptacle

SSQ-110-03-T-D

SamtecJ3, J4, J5,J20, J21, J34,
J35, J49

8Header, 2.54 mm, Header, 2.54 mm,
TSW-101-08-G-S
1 x 1, Gold, TH
1 x 1, TH

Samtec

J19, J36, J50,
J51

4Header, 100 mil,24 x 2, Gold, TH

60.96 x 8.38 x
5.08 mm

TSW-124-07-G-D

SamtecSH-J1, SH-J2,
SH-J3, SH-J4,
SH-J5, SH-J6,
SH-J7, SH-J8,
SH-J9, SHJ10, SH-J11,
SH-J12, SHJ13, SH-J14,
SH-J15, SHJ16, SH-J17,
SH-J18, SHJ19, SH-J20,
SH-J21, SHJ22, SH-J23,
SH-J24, SHJ25, SH-J26,
SH-J27, SHJ28, SH-J29,
SH-J30, SHJ31, SH-J32,
SH-J33, SHJ34, SH-J35,
SH-J36, SHJ37, SH-J38,
SH-J39, SHJ40, SH-J41,
SH-J42, SHJ43, SH-J44,
SH-J45, SHJ46, SH-J47,
SH-J48, SHJ49

49

Shunt, 100 mil,Flash Gold, Black

Closed Top 100mil Shunt

SPC02SYAN

Sullins ConnectorSolutions

TP1, TP2,
TP3, TP4

4

Terminal, Turret,TH, Double

Keystone1502-2

1502-2

Keystone

U1

1

Light emitting
diode (LED) driver

HTSSOP56

1x2

SLVUC16 – OCTOBER 2020
Submit Document Feedback

TLC6C5748QDC
Texas Instruments
ARQ1

TLC6C5748EVM User's GuideCopyright © 2020 Texas Instruments Incorporated13

Revision History

www.ti.com

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

14DATEREVISIONNOTESOctober 2020

*Initial Release

TLC6C5748EVM User's Guide

SLVUC16 – OCTOBER 2020
Submit Document Feedback
Copyright © 2020 Texas Instruments Incorporated

IMPORTANT NOTICE AND DISCLAIMER
TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATA SHEETS), DESIGN RESOURCES (INCLUDING REFERENCEDESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS”
AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANYIMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRDPARTY INTELLECTUAL PROPERTY RIGHTS.
These resources are intended for skilled developers designing with TI products. You are solely responsible for (1) selecting the appropriate
TI products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicablestandards, and any other safety, security, regulatory or other requirements.
These resources are subject to change without notice. TI grants you permission to use these resources only for development of an
application that uses the TI products described in the resource. Other reproduction and display of these resources is prohibited. No license
is granted to any other TI intellectual property right or to any third party intellectual property right. TI disclaims responsibility for, and you
will fully indemnify TI and its representatives against, any claims, damages, costs, losses, and liabilities arising out of your use of theseresources.
TI’s products are provided subject to TI’s Terms of Sale or other applicable terms available either on ti.com or provided in conjunction withsuch TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for
TI products.
TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2022, Texas Instruments Incorporated