Texas Instruments TLC6C5816-Q1EVM User manual

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TLC6C5816-Q1EVM User's Guide
User's Guide
SLVUB43–September 2017
TLC6C5816-Q1EVM User's Guide
This document is the user’s guide for TLC6C5816EVM and TLC6C5816EVM GUI. TLC6C5816EVM is
designed to be controlled by TLC6C5816EVM GUI via a USB2ANY communication tool. The
TLC6C5816EVM can be powered by a Micro-USB supply, users can use a USB port to power the board
easily. The TLC6C5816EVM GUI is designed to demonstrate TLC6C5816-Q1 features which can support
both a single device and two cascading devices.
Contents
1 Introduction ................................................................................................................... 2
1.1 Features.............................................................................................................. 2
1.2 Applications.......................................................................................................... 2
1.3 Description........................................................................................................... 2
2 Test Setup and Results..................................................................................................... 4
2.1 Hardware Setup..................................................................................................... 4
2.2 Software Installation................................................................................................ 5
2.3 GUI Function ........................................................................................................ 5
3 Board Layout................................................................................................................ 11
4 Schematic and Bill of Materials........................................................................................... 12
4.1 Schematic .......................................................................................................... 13
4.2 BOM................................................................................................................. 14
List of Figures
1 TLC6C5816EVM Kit......................................................................................................... 3
2 TLC6C5816EVM Hardware Setup ........................................................................................ 4
3 TLC6C5816EVM Key Connectors......................................................................................... 4
4 Landing Page of TLCC65916EVM GUI................................................................................... 5
5 LED Control Panel........................................................................................................... 6
6 TLC6C5816EVM GUI Connection Status ................................................................................ 7
7 Channel Turn On and Off Control ......................................................................................... 7
8 LED Diagnostics Configuration ............................................................................................ 8
9 Channel Function Selection................................................................................................ 8
10 Status Read-Back ........................................................................................................... 8
11 ERR Indicator and Device Reset .......................................................................................... 9
12 PWM Dimming ............................................................................................................... 9
13 Cascading Device Configuration......................................................................................... 10
14 GUI for Cascading Device ................................................................................................ 10
15 TLC6C5816EVM Top Layout............................................................................................. 11
16 TLC6C5816EVM Bottom Layout......................................................................................... 12
17 Schematic ................................................................................................................... 13
List of Tables
1 TLC6C5816EVM Parameters .............................................................................................. 3

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Trademarks
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1 Introduction
The TLC6C5816-Q1 device is a 16-bit shift register LED driver designed to support automotive LED
applications. A built-in LED-open and LED-short diagnostic mechanism provides enhanced safety
protection. The device contains 16-channel power DMOS transistor outputs. Eight channels support LED
fault diagnostics by configuring corresponding registers. The diagnostics channels DIAGn must connect to
DRAINn to use the LED diagnostics. A command error fault implies that when a channel is configured for
LED diagnostics, a register write command turns on the channel at the same time. The device provides a
cyclic redundancy check to verify register values in the shift registers. In read-back mode, the device
provides 6 bits of the CRC remainder. The MCU can read back the CRC remainder and check if the
remainder is correct. This can check whether the communication loop between MCU and device is good.
1.1 Features
• Qualified for Automotive Applications
– Device Temperature Grade 1: –40°C to 125ºC Ambient Operating Temperature Range
– Device HBM ESD Classification Level H3A
– Device CDM ESD Classification Level C6
• 16-Channel Power DMOS Transistor Outputs
– Open-Drain Output up to 50 mA per Channel
– Output Turn-On Resistance: 6.2 Ω(Typ.)
– Output Voltage Maximum Rating: 45 V
– Fixed Slew Rate for Optimized EMI Performance
• Serial Interface and PWM Inputs
– Shift Register Compatible With TPIC6C596, TLC6C598-Q1, TLC6C5912-Q1
– LED Status Read-back
– 2 PWM Inputs for Group Dimming
• Diagnostics and Protection
– Overtemperature Protection
– Configurable LED Open and Short Diagnostics
– Serial-Interface Communication Error Detection
– Open-Drain Error Feedback
• Package
– 28-Pin HTSSOP
1.2 Applications
• Automotive Instrumentation Clusters
• Automotive HVAC Control Panels
• Automotive Center Stacks
• Automotive E-Shifter Indicators
1.3 Description
1.3.1 Kit Contents
The TLC6C516EVM kit contains a USB2ANY and TLC6C5816EVM, as showed in Figure 1.

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Figure 1. TLC6C5816EVM Kit
1.3.2 Additional Items Required
• PC on which to install the TLC6C5816EVM GUI
• DC supply or USB port for LED supply
1.3.3 EVM Parameters
Table 1 shows the typical parameters of TLC6C5816EVM.
Table 1. TLC6C5816EVM Parameters
VCC 3-5.5 V
LED supply 12 V typical
Channel current 20 mA at 12-V LED supply
NOTE: Channel current is set at 20 mA when the LED supply voltage is 12 V. Although the
TLC6C5816-Q1 device can withstand a 40-V maximum LED supply voltage, increased LED
supply voltage increases channel output current. Make sure the channel current is within 50
mA when using higher LED supply voltage.

LED Supply
IC Supply
Put shunt on J28
to connect
USB2ANY 3.3 V
to IC Supply
USB2ANY
Connector
Put shunt on J32
power U1 in cascading
device mode
Put shunt on J33 and remove
shunt on J31 to configure
EVM for single device mode
Put shunt on J31 and remove
shunt on J31 to configure
EVM for cascading device mode
USB2ANY
TLC6C5816EVM
DC Supply
5V
USB
Cable
VSENSE
VCC
GND
Put Shunt on J3 supply
VCC from USB2ANY
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2 Test Setup and Results
2.1 Hardware Setup
Figure 2 shows the hardware setup of the TLC6C5816EVM.
• Connect a 12-V power supply between TP31 (VSENSE) and TP29 (GND), or connect a 5-V power supply
to J27 via a Micro-USB cable.
• Put a shunt on J28 to use the USB2ANY 3.3-V supply to power VCC.
• Connect USB2ANY to the computer.
• Connect the USB2ANY board to the TLC6C5816EVM.
Figure 2. TLC6C5816EVM Hardware Setup
Figure 3 shows the key connectors to launch the TLC6C5816EVM.
Figure 3. TLC6C5816EVM Key Connectors

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2.2 Software Installation
Download the GUI software from TLC6C5816-Q1 EVM tools folder. After downloading, install the
TLC6C5816EVM GUI on the PC. A shortcut to the GUI is found on the desktop. A shortcut can also be
found in the start-up menu under the Texas Instruments folder. Figure 4 shows the landing page of
TLC6C5816EVM GUI, which contains the TLC6C5816-Q1 introduction information and TLC6C5816EVM
information. Click Menu to show more information.
Figure 4. Landing Page of TLCC65916EVM GUI
2.3 GUI Function
Click LED Control under Menu, and the GUI displays a detailed LED control panel as shown in Figure 5.

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Figure 5. LED Control Panel
2.3.1 Connection Status
Before using the GUI, make sure connection status indicator in the bottom-left corner is in the green state,
which means the USB2ANY is connected to computer successfully. If the status indicator is in red state,
try to reconnect the USB2ANY cable and restart TLC6C5816EVM GUI.

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Figure 6. TLC6C5816EVM GUI Connection Status
2.3.2 GUI Function
The following section shows detailed information on how to use the GUI to evaluate the TLC6C5816-Q1
device.
2.3.2.1 Channel On and Off Control
Click the ON and OFF button to turn on or turn off the TLC6C5816-Q1 output channels.
Figure 7. Channel Turn On and Off Control
2.3.2.2 Channel Diagnostics Configuration
The even channels of the TLC6C5816-Q1 device have multiple functions. Normally the GUI can be used
for controlling Channel On and Off, but it can also be configured for the LED diagnostics function.

REF
REF
TLC6C5816
SHORT
OPEN
8 X
Vbat
SPI
REF
REF
ERR
SHORT
OPEN
DRAIN0
8 X8 X
DRAIN1
/DOAG0 DRAIN0
DRAIN1
/DOAG0
8 X8 X
MCU
TLC6C5816
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Figure 8. LED Diagnostics Configuration
NOTE: When a channel is configured for LED diagnostics, make sure that the jumpers on the
TLC6C5816EVM are configured properly for the LED diagnostics circuit. Remove the Dx-
OPEN shunt and put on the Dx-DIAG shunt.
There is a CONFIG option in the GUI for the TLC6C5816-Q1 even channels. Selecting NORM means the
channel is in normal ON/OFF operation mode. Selecting DIAG enables the diagnostics function.
Figure 9. Channel Function Selection
2.3.2.3 Status Read-Back
When the LED diagnostics function is used, the TLC6C5816EVM GUI provides a status check function.
Pressing READ reads back the TLC6C5816-Q1 status register, including LED open or short status,
command error, overtemperature status, and CRC check status. A green indicator means everything is in
the normal state. A red indicator means there is a fault.
Figure 10. Status Read-Back

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2.3.2.4 ERR Indicator and Device Reset
The TLC6C5816-Q1 device has an ERROR pin which can indicate when an error happens in the device.
The TLCC65816EVM GUI integrates an ERR indicator which detects the ERROR pin status
simultaneously. Red indicates ERROR pin is pulled down, green means there is no fault on the device.
Both the CLR pin and EN of TLC6C5816-Q1 are low active pins. CLR high means the voltage on CLR pin
is high, so the register clear function is disabled. CLR low means the voltage on the CLR pin is low, so the
register data is cleared.
EN low means the voltage on the EN pin is low and the device is enabled. EN high means the voltage on
the EN pin is high, so the device is disabled. EN high puts the device in low-power mode and clears all the
register data simultaneously.
Figure 11. ERR Indicator and Device Reset
2.3.2.5 PWM Dimming
PWM0 controls the G1 pin to enable the PWM dimming function on CH0–CH7. PWM1 controls the G2 pin
to enable the PWM dimming function on CH8–CH15. The PWM frequency has 5 options: 2 kHz, 1 kHz,
400 Hz, 200 Hz, 100 Hz, and the duty cycle can be configured from 0 to 100%.
Figure 12. PWM Dimming
2.3.2.6 Cascading Device Mode
The TLC6C5816EVM can be configured as two devices connected in cascade by removing the shunt on
J33 and putting shunts on J31 and J32.
NOTE: The GUI only has channel-on and -off functions for devices in cascade. The GUI does not
implement the LED diagnostics function for devices in cascade. All channels of the cascaded
devices are dimmed by PWM2.

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Figure 13. Cascading Device Configuration
Clicking Slave Device configures the GUI to the cascading device mode.
Figure 14. GUI for Cascading Device