Texas Instruments TLC6A598 User manual
User’s Guide
TLC6A598 Power Logic 8-Bit Shift Register Evaluation
Module
ABSTRACT
This user’s guide describes the characteristics, setup, and usage of the TLC6A598 evaluation module (EVM).
The TLC6A598EVM helps the user to evaluate the features of the Texas Instruments TLC6A598, power
logic 8-Bit shift register. This user’s guide includes hardware setup instructions, graphical user interface (GUI)
instructions, printed-circuit board (PCB) layout drawings, a schematic diagram, and a bill of materials.
Table of Contents
1 Introduction.............................................................................................................................................................................2
2 Test Setup................................................................................................................................................................................4
3 Design Files...........................................................................................................................................................................10
3.1 Layout.............................................................................................................................................................................. 10
3.2 Schematic.........................................................................................................................................................................11
3.3 BOM................................................................................................................................................................................. 12
List of Figures
Figure 1-1. TLC6A598EVM Kit.................................................................................................................................................... 2
Figure 2-1. TLC6A598EVM Test Bench Setup............................................................................................................................ 4
Figure 2-2. USB2ANY Explorer................................................................................................................................................... 5
Figure 2-3. GPIO and SPI Selection............................................................................................................................................6
Figure 2-4. GPIO3 Configuration................................................................................................................................................. 7
Figure 2-5. SPI Configuration...................................................................................................................................................... 8
Figure 2-6. Data Write with SPI Interface.................................................................................................................................... 9
Figure 3-1. TLC6A598EVM Top Layer.......................................................................................................................................10
Figure 3-2. TLC6A598EVM Bottom Layer................................................................................................................................. 11
Figure 3-3. TLC6A598EVM Schematic......................................................................................................................................12
List of Tables
Table 1-1. TLC6A598EVM Electrical Specifications.................................................................................................................... 3
Table 2-1. TLC6A598EVM Connectors and Test Points.............................................................................................................. 4
Table 3-1. TLC6A598EVM Bill of Materials (BOM).................................................................................................................... 12
Trademarks
All trademarks are the property of their respective owners.
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TLC6A598 Power Logic 8-Bit Shift Register Evaluation Module 1
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1 Introduction
The TLC6A598 evaluation module (EVM) helps designers evaluate the operation and performance of the
TLC6A598 8-Bit Shift Register designed for the high current multi-load application. The TLC6A598 device is
a monolithic, high-voltage, high-current power 8-bit shift register designed for systems that require relatively high
load power, such as LEDs. The device contains a built-in voltage clamp on the outputs for inductive transient
protection. Power driver applications include relays, solenoids, and other high current or high voltage loads.
Each open-drain DMOS transistor features an independent chopping current limiting circuit to prevent damage in
the case of a short circuit.
The TLC6A598EVM provides an eight-channel relays control example solution. It is designed to operate with two
supply power rails, one power rail for the TLC6A598 and another power rail for the relays. This evaluation board
is designed to work with the USB2ANY board and USB2ANY Explore Software. See the TLC6A598 data sheet
for more information about the digital communication.
The LP5860EVM kit is illustrated in Figure 1-1.
Figure 1-1. TLC6A598EVM Kit
This design describes an application of the TLC6A598 as a relay controller using the specifications shown in
Table 1-1. For applications with a different input voltage range or different output voltage and current, please
refer to the TLC6A598 data sheet.
Introduction www.ti.com
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Table 1-1. TLC6A598EVM Electrical Specifications
Parameter Test Conditions Min. Typ. Max. Unit
Input voltage range, VCC 3 5.5 V
Input voltage range, VDD 24 V
Relay G5NB-1A-E D24 8.3 mA
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TLC6A598 Power Logic 8-Bit Shift Register Evaluation Module 3
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2 Test Setup
This section describes the test setup for the evaluation of the TLC6A598EVM board. Table 2-1 shows the EVM
connectors and test points.
Table 2-1. TLC6A598EVM Connectors and Test Points
Reference Designator Function
J1 VCC
J2 GND for VCC
J3 VDD
J4 GND for VDD
J5 USB2ANY Connector
J6 Outputs connector for TLC6A598
J7 Outputs connector for Relays
TP1 Test point for VCC
TP2 Test Point for VDD
TP3, TP4, TP5 GND Test Point
The following equipment are required for the test setup:
• A power supply 1 capable of supplying 5 V @ 0.3 A is required to supply VCC.
• A power supply 2 capable of supplying 24 V @ 1 A is required to supply VDD.
To evaluate the TLC6A598EVM board, the USB2ANY interface adapter provided by TI is recommended here.
Please download and install the USB2ANY Explorer Software on the computer.
Figure 2-1 shows the test bench setup for the evaluation of the TLC6A598EVM board.
+
–
+24V DC
+
–
+5V DC
USB Cable
Edge cable
++
PC
Figure 2-1. TLC6A598EVM Test Bench Setup
Set the input voltage power supply 1 to 5 V and the current limit to 0.3 A. Turn off the power supply 1. Connect
the power supply 1 to the J1 and J2 connectors with the positive terminal of the supply connected to VCC (J1)
and the negative terminal of the supply connected to GND (J2). Set the input voltage power supply 2 to 24 V and
the current limit to 1 A. Turn off the power supply 2. Connect the power supply 2 to the J3 and J4 connectors,
with the positive terminal of the supply connected to VDD (J3) and the negative terminal of the supply connected
to GND (J4).
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Connect the USB2ANY with Edge cable to J5 and connect USB2ANY to the PC with USB cable.
With above setup and connections completed, turn on the power supply 1 and 2. Then open the USB2ANY
Explorer Software and the software will show as Figure 2-2.
Figure 2-2. USB2ANY Explorer
Click the 'Select Interface' button and choose the 'GPIO' and 'SPI' as Figure 2-3 and click the 'Close' button.
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TLC6A598 Power Logic 8-Bit Shift Register Evaluation Module 5
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Figure 2-3. GPIO and SPI Selection
Click the 'GPIO' button and configure the GPIO3 as Figure 2-4. If you cannot see the 'GPIO' button, please
adjust the display scale of the PC to 100%.
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Figure 2-6. Data Write with SPI Interface
Then, the eight relays K1 to K8 will turn on and the eight Green LEDs D1 to D8 will turn on accordingly.
Please refer to the TLC6A598 data sheet for additional functional tests.
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TLC6A598 Power Logic 8-Bit Shift Register Evaluation Module 9
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3 Design Files
The layout, schematic, and bill of materials (BOM) of the TLC6A598 EVM board design are included in this
section.
3.1 Layout
Figure 3-1 and Figure 3-2 demonstrate the TLC6A598EVM layout images.
Figure 3-1. TLC6A598EVM Top Layer
Design Files www.ti.com
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