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User’s Guide
TLIN1431EVM User's Guide
ABSTRACT
This user guide describes the TLIN1431-Q1 evaluation module (EVM). This EVM helps designers evaluate
the device performance, support fast development, and analyze automotive local interconnect network (LIN)
systems using the TLIN1431-Q1 family of LIN system basis chips (SBCs), which include wake functionality,
integrated high-side switch, and watchdog.
Figure 1-1. TLIN1431EVM Board Image
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Table of Contents
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Table of Contents
1 Introduction.............................................................................................................................................................................3
1.1 Features............................................................................................................................................................................. 3
1.2 Description......................................................................................................................................................................... 3
2 EVM Setup and Features........................................................................................................................................................4
2.1 Startup Mode Configurations............................................................................................................................................. 4
2.2 Commander and Responder Configurations......................................................................................................................5
2.3 Local Wake-Up...................................................................................................................................................................5
2.4 Channel Expansion............................................................................................................................................................ 6
2.5 VBAT Voltage Divider...........................................................................................................................................................7
2.6 Reset Input.........................................................................................................................................................................7
2.7 Logic-Level LIMP and WAKE Signals................................................................................................................................ 7
2.8 High-Voltage Signal Monitoring..........................................................................................................................................8
2.9 TXD and RXD.................................................................................................................................................................... 8
2.10 VCC Load Testing............................................................................................................................................................ 8
2.11 SPI Interface.....................................................................................................................................................................8
3 Jumpers, Headers, Connectors, Test Points, and Switches...............................................................................................9
4 Bill of Materials......................................................................................................................................................................11
5 Schematic..............................................................................................................................................................................14
Trademarks
All trademarks are the property of their respective owners.
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Introduction
1 Introduction
1.1 Features
The EVM supports the following features:
•
•
•
•
•
•
•
Commander and responder configuration options
Terminal block and header pins on all power and LIN bus connections
Access to the LDO output VCC
Accessible wake functionality with push-button
Selectable pull-up and pull-down resistors for device pins
Logic-level signals for high-voltage WAKE and LIMP signals
Test point connections for each board signal
1.2 Description
The TLIN1431EVM provides users with the ability to evaluate the TI TLIN1431-Q1 family of single-channel
LIN SBCs, which include LDO, wake, high-side switch, watchdog, integrated battery voltage divider, LIMP, and
channel expansion functionality. The EVM allows both commander and responder mode applications to be
evaluated through the use of a single jumper that connects or disconnects the external 1 kΩ pull-up resistor and
series diode required in commander mode applications on the LIN bus.
The EVM has access to the integrated VCC rail from the device LDO. This LDO output can be used as
logic-level input voltages for the logic pins of the TLIN1431-Q1. The TLIN14315-Q1 includes a 5-V LDO, and
the high-level logic inputs to the device can range from 2 V to 5.25 V, though the biasing of the PIN/nCS pin
determines whether 3.3 V SPI or 5 V SPI is used (known as “VIOless” capability). This allows the TLIN14315-Q1
to interface with both 3.3 V and 5 V logic levels. The TLIN14313-Q1 includes a 3.3-V LDO, and the high-level
logic inputs to the device range from 2 V to 3.6 V, allowing interfacing with 3.3 V systems.
Non-populated pads are included on TXD, RXD, and LIN to accommodate a variety of different tests requiring
various capacitive load conditions. Additionally, the LIN signal contains a non-populated SOD-323 footprint on
LIN allowing for the implementation of an ESD1LIN24-Q1 protection device as desired.
The TLIN SBC family supports both 12 V and 24 V automotive applications and is operated with a supply voltage
from 5.5 V to 28 V, and is capable of handling supply/battery voltages up to 42 V. The LIN bus provides extended
bus fault protection of ±58 V.
External headers with power and LIN bus connections allow for the EVM to be evaluated in a larger system.
Additional, channel expansion outputs provide the capability of interfacing with another device, such as a
TCAN1042-Q1 or a TLIN1021-Q1 (or other TCAN and TLIN devices) as applicable.
The wake input functionality of the TLIN1431-Q1 is accessible in many ways, including via external interface or
push-button wake.
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2 EVM Setup and Features
Use the following equipment to evaluate the performance of the TLIN1431-Q1:
• Power supply capable of supplying the desired supply voltage. Typical LIN applications use 12 V or 24 V, but
the TLIN1431-Q1 can operate with any supply voltage from 5.5 V to 28 V. Connect this voltage across the
VBAT and GND pins of the J11 paired banana jack connector.
• If the LIN bus interface is to be observed using an oscilloscope, use probes capable of tolerating voltages as
large as VBAT.
• The logic interface pins may interface to a microcontroller, pattern generator, or logic analyzer with logic
levels matching the LDO VCC voltage, or a high-level voltage consistent with the VIH requirements of the
device.
• The LDO output can be used for testing load and thermal capabilities with a source meter or physical
resistance connected between the jumper pins on J4 (pins 1 and 2) or any other VCC output pin or test point.
• An external device to be controlled via the channel expansion functionality (accessed from J6 and J7) can be
connected using jumper cables or wires as appropriate.
2.1 Startup Mode Configurations
2.1.1 Pin and SPI Modes
Two modes of operation are available on the TLIN1431-Q1: pin mode and SPI mode. The mode of the device is
determined by the state of pin 7 (PIN/nCS) upon power-up. If pin 7 is pulled low or connected to GND at startup,
the device operates in pin mode, with no SPI interface. If pin 7 is left floating or pulled high at startup, then the
device operates in SPI mode, where the SPI interface is enabled and the user can access the internal registers
of the device.
Additionally, the TLIN14315-Q1 is capable of VIO less operation as determined by the biasing of this PIN/nCS
pin. If it is left floating, the device operates using 3.3 V SPI communication. If it is pulled high to 5 V, then it
operates using 5 V SPI communication.
VCC
(5 V)
3.3 V
3.3 V
3.3 V
500k
PIN Mode
PIN/nCS
PIN/nCS
3.3 V SPI
PIN/nCS
5 V SPI
10k
GND
Figure 2-1. PIN/nCS Configuration
Note the TLIN14313-Q1, which includes a 3.3 V LDO, does not include VIOless operation and is only capable of
3.3 V SPI communication.
J5 allows for easy biasing of the PIN/nCS pin to either a pull-down resistor for pin mode or floating/pull-up for
VIOless SPI mode operation.
The TLIN1431-Q1 device has alternate pin designations and functions depending on the power-up mode
chosen. The designations are shown in Table 2-1, and the functions of each pin are described in the TLIN1431Q1 data sheet.
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EVM Setup and Features
Table 2-1. Pinout in Pin Mode vs. Pinout in SPI Mode
Pin
Pin mode
SPI mode
4
WDT – Programmable watchdog window set input
CLK – SPI clock input
5
nWDR – Watchdog failure output trigger
SDO – SPI serial data output
6
WDI – Watchdog timer edge-triggered input
SDI – SPI serial data input
7
PIN – Input that sets the device to pin mode
nCS – SPI chip select
8
EN – Device mode change input
nINT – Device interrupt output
9
HSSC – High-side switch control input
FSO – Function output
The user can start up the TLIN1431-Q1 into pin mode by connecting a shunt between pins “PIN/nCS” and
“GND_PD” of J5, which applies a pull-down to GND to pin 7. Leaving all pins of J5 floating results in the
TLIN1431-Q1 operating in SPI mode, and the TLIN14315-Q1 operates with 3.3 V SPI. Connect a shunt between
pins “PIN/nCS” and “VCC_PU” of J5 to apply a pull-up to VCC, resulting in 5 V SPI operation for the TLIN14315Q1.
2.1.2 Wake Request (WKRQ) vs. Inhibit Output (INH)
The WKRQ/INH pin has the capability of operating as either a logic-level wake request (WKRQ) digital output,
or a high-voltage inhibit (INH) output based upon its biasing at startup. Applying a 100 kΩ or stronger pull-down
to GND on this pin results in the pin behaving as logic-level WKRQ. Alternatively, leaving this pin floating or
applying a 1 MΩ pull-down to GND results in the pin behaving as high-voltage INH.
Floating or 1 M pulldown make pin INH
VSUP
WKRQ
100 k
INH
1M
GND
VSUP
GND
WKRQ/
INH
WKRQ/
INH
VINT
Control
VINT
Control
Figure 2-2. WKRQ or INH Pin Select
The user can configure this pin as WKRQ by connecting a shunt between pins “U1.16” and “WKRQ” of J2
to apply a 100 kΩ pull-down. Alternatively, the user can configure the WKRQ/INH pin as high-voltage INH by
connecting a shunt between pins “U1.16” and “INH” of J2 at power-up to apply a 1 MΩ pull-down, or by leaving
all of these pins floating. In addition, capacitor pad C29 allows for the user to test a capacitor in parallel with the
1 MΩ resistor in order to evaluate the behavior of this pin at startup.
2.2 Commander and Responder Configurations
The TLIN1431-Q1 has an internal pull-up resistor and serial diode on LIN that allows it to operate as a
responder. To operate as a commander, an external 1 kΩ pull-up and serial diode is required on the bus.
The user can apply a shunt between the pins of J10 to apply this 1 kΩ pull-up and allow for use as a commander
node.
2.3 Local Wake-Up
The WAKE pin of the TLIN1431-Q1 is used for the local wake-up (LWU) function of the device, which is
explained in detail in the data sheet. This can be directly interfaced close to the device using J15, pin “WAKE”
without a shunt. Applying a shunt to J15 applies a pull-up and allows the use of the WAKE switch on the board.
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J14 allows the user to select the pull-up source for this circuitry. Connect a shunt between pins “WAKE_PU” and
“VBAT” to apply a pull-up to the battery voltage rail. In this configuration, the user can implement push-button
wake using the WAKE switch S1.
Connecting a shunt between pins “WAKE_PU” and “HSS” of J14 provides a pull-up to the high-side switch of
the device. This configuration is required if the user intends to implement cyclic-sense wake functionality. This
functionality is described in detail in the device’s data sheet.
2.4 Channel Expansion
The VCC, FSO, HSS, and VSUP pins allow for channel expansion, such that the TLIN1431-Q1 can control
an external transceiver or similar device. This effectively allows for an additional communication channel to be
controlled via the TLIN1431-Q1.
VBAT
VSUP
100 nF
470
1 M pull-down or
leave floating for INH
100 nF
3.3 V
LDO
VDD33
1 M
VBAT
VSUP
INH
VCC = 3.3V/5V
500 k
10 µ F
nCS
VDD
CLK
WAKE
SDI
LIMP
SDO
VDD
I/O
TLIN1431x-Q1
10 k
nRST
nINT
DIV_ON
PV
Micro
20 pF
LIN
TXD
RXD
LIN Controller
Or
SCI/UART
FSO
EN
HSS
VSUP
TXD
RXD
TLIN1039
LIN
Figure 2-3. Channel Expansion with LIN Transceiver
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EVM Setup and Features
VBAT
VSUP
100 nF
470
1 M pull-down or
leave floating for INH
100 nF
3.3 V
LDO
VDD33
1 M
VBAT
VSUP
INH/
WKRQ
500 k
nCS
VDD
HSS
CLK
SDI
WAKE
SDO
LIMP
VDD
10 k
I/O
TLIN14315-Q1
nRST
nINT
DIV_ON
PV
Micro
20 pF
LIN
TXD
LIN Controller
Or
SCI/UART
RXD
FSO
3.3 V
100 nF
CAN
Controller
VCC = 5V
VIO
STB VCC
TXD
RXD
TCAN1044VA
10 µ F
CANH
CANL
Figure 2-4. Channel Expansion with CAN Transceiver
Note that the VCC and FSO pins are logic-level voltages, while the HSS and VSUP signals are high-voltage
outputs. Use care when implementing these outputs to ensure the proper voltage design requirements are met.
2.5 VBAT Voltage Divider
To activate the internal VBAT voltage divider on the TLIN1431-Q1, apply a high signal on DIV_ON using the
appropriate pin on J4. By default, an internal pull-down deactivates the internal voltage divider when the pin is
left floating.
The output of the voltage divider can be measured on PV.
2.6 Reset Input
Push-button nRST interfacing is possible using S2 on the EVM. Pressing S2 delivers a strong pull-down to the
active-low nRST pin.
2.7 Logic-Level LIMP and WAKE Signals
This EVM implements on-board comparators to provide logic-level outputs representing the states of LIMP and
WAKE respectively, which are high-voltage signals for the device. These are provided as “LIMP_MCU” and
“WAKE_MCU” on J4, thus configuring all J4 signals as logic-level, and potentially capable of being connected to
general-purpose inputs on an external micro controller.
Note that LIMP_MCU and WAKE_MCU are outputs, and are not connected to LIMP and WAKE. Thus, for
example. a signal cannot be applied to WAKE_MCU that would impact the high-voltage WAKE signal on the
TLIN1431-Q1.
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It is also possible to reconfigure the WAKE_MCU output to reflect the state of HSS rather than WAKE. This can
be accomplished by depopulating R17 and populating a 0 Ω resistor on R19. Take care to ensure that only one
of these resistors is populated at a time.
2.8 High-Voltage Signal Monitoring
INH, HSS, and WAKE, which are high-voltage signals for the TLIN1431-Q1, can be monitored using the
three orange test points on the board: TP1 (WAKE), TP15 (WKRQ/INH), and TP16 (HSS). These are colored
differently from the logic-level signals accessible via the other test points on the board.
2.9 TXD and RXD
TXD and RXD are accessible either via TP24/TP25, or via the J8 connector. These can be used to interface with
the input/output signals of the LIN bus.
Pads R15 and C9 allow for additional pull-down resistance or capacitance on the TXD line if it is needed for
applications such as oscilloscope impedance matching. Pad C11 allows for the addition of capacitance to the
RXD line.
Placing a shunt on J17 provides a pull-up to RXD. The TLIN1431-Q1 does not require a pull-up on RXD to
operate, though this can be used to evaluate the performance of RXD under these conditions.
2.10 VCC Load Testing
The LDO output (VCC) is accessible using TP4 or via pin 1 of J4. The user can apply a load to these pins to test
the stability and performance of the LDO on the TLIN1431-Q1.
2.11 SPI Interface
When operating in SPI mode, pins 4-7 of the TLIN1431-Q1 become the SPI interface for the device. Specifically,
“WDT/CLK” is the SPI clock input, “nWDR/SDO” is the SPI serial data output, “WDI/SDI” is the SPI serial data
input, and “PIN/nCS” is the SPI active-low chip select.
The four SPI interface pins are accessible via J4, pins 12, 14, 16, and 18. These four signals are vertically
separated from the rest of the logic signals on J4. Per the silkscreen legend on the board, these four signals are
on the leftmost column of J4, while the remaining signals on this header are located on the rightmost column.
These four SPI signals can be connected to a micro controller or similar processor to control the TLIN1431-Q1
via SPI. Note that the device must start up with PIN/nCS (pin 7) floating or pulled high to interface via SPI mode.
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Jumpers, Headers, Connectors, Test Points, and Switches
3 Jumpers, Headers, Connectors, Test Points, and Switches
Table 3-1, Table 3-2, and Table 3-3 list all the jumpers, headers, connectors, test points, and switches on the
TLIN1431EVM and explain the functions of each of these components.
Table 3-1. Jumpers, Headers, and Connectors
Designator
Function
J1
Connector for WDT/CLK, with adjacent VCC and GND pins for WDT triggering, or GND referencing for CLK
function.
J2
Connector for WKRQ/INH as described in Section 2.1.2.
J3
Connector for EN/nINT, with adjacent pull-up to VCC and GND pins for interfacing the enable/interrupt pin.
J4
Generic output connector with multiple board signals connected. Pins 4-7, which are SPI communication pins in SPI
mode, are separated column-wise from the other signals on J4. The non-signal pins are connected to GND.
J5
Connector for PIN/nCS, which is used to configure the startup mode of the TLIN1431-Q1 as described in Section
2.1.1 and operates as chip-select in SPI mode.
J6 & J7
Channel expansion output as described in Section 2.4.
J8
TXD and RXD connection as described in Section 2.9.
J9
Terminal block connector for LIMP.
J10
Commander node selector, as described in Section 2.2.
J11
Banana jack connector for the VBAT and GND supplies for the device.
J13
Connector for VBAT and VSUP.
J14 & J15
Configuration connectors for pull-up on WAKE pin, as described in Section 2.3.
J16
LIN output with adjacent VBAT and GND pins.
J17
RXD pull-up selector, as described in Section 2.9.
J18
Pull-down connector for LIMP. Connect a shunt to apply a 100 kΩ pull-down on the LIMP pin.
J21
GND connection rail.
Table 3-2. Test Points
Designator
Function
TP1
Test point for WAKE (HV)
TP2
Test point for LIMP (HV)
TP3
Test point for VSUP (HV)
TP4
Test point for VCC
TP5
Test point for VBAT (HV)
TP6-TP14
GND connections
TP15
Test point for WKRQ/INH (HV possible)
TP16
Test point for HSS (HV)
TP17
Test point for nRST
TP19
Test point for nWDR/SDO
TP20
Test point for PV
TP22
Test point for WDT/CLK
TP23
Test point for PIN/nCS
TP24
Test point for TXD
TP25
Test point for RXD
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Table 3-3. Switches
Designator
10
Function
S1
Push-button switch for WAKE interfacing, only active if J14 and J15 are appropriately connected as described in
Section 2.3.
S2
Push-button switch for applying a strong pull-down to nRST as described in Section 2.6.
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Bill of Materials
4 Bill of Materials
Table 4-1. TLIN1431EVM Bill of Materials
Designator
Quantity
Value
Description
C1, C2, C3
3
0.1uF
CAP, CERM, 0.1 uF, 50 V, +/- 10%, X7R, 0603 885012206095
Wurth Elektronik
C4
1
1uF
CAP, CERM, 1 uF, 50 V, +/- 10%, X7R, 0805
Kemet
C5
1
10uF
CAP, CERM, 10 uF, 50 V, +/- 10%, X7R, AEC- UMJ325KB7106KMHT
Q200 Grade 1, 1210
Taiyo Yuden
C7
1
10uF
CAP, CERM, 10 uF, 10 V, +/- 10%, X7R, 0805 885012207026
Wurth Elektronik
C8
1
1uF
CAP, CERM, 1 uF, 16 V, +/- 10%, X7R, AECQ200 Grade 1, 0603
GCM188R71C105KA64D
MuRata
C10, C12
2
0.01uF
CAP, CERM, 0.01 µF, 50 V,+/- 10%, X7R,
0603
885012206089
Wurth Elektronik
C30
1
220pF
CAP, CERM, 220 pF, 50 V, +/- 10%, X7R,
0603
C0603C221K5RACTU
Kemet
D1
1
80V
Diode, Schottky, 80 V, 1 A, SMB
B180B-13-F
Diodes Inc.
D2
1
250V
Diode, Standard Recovery Rectifier, 250 V, 0.2 BAV21WS-TP
A, SOD-323
Micro Commercial Components
H1, H2, H3, H4
4
Machine Screw, Round, #4-40 x 1/4, Nylon,
Philips panhead
NY PMS 440 0025 PH
B&F Fastener Supply
H5, H6, H7, H8
4
Standoff, Hex, 0.5"L #4-40 Nylon
1902C
Keystone
J1, J2, J3, J5, J8, J14, 7
J16
Header, 100mil, 3x1, Gold, TH
TSW-103-07-G-S
Samtec
J4
1
Header, 100mil, 13x2, Gold, TH
TSW-113-07-G-D
Samtec
J6, J7, J10, J13, J15,
J17, J18
7
Header, 100mil, 2x1, Gold, TH
TSW-102-07-G-S
Samtec
J9
1
Terminal Block, 5.08mm, 2x1, TH
039544-3002
Molex
J11
1
Mini DBL Banana Jack , Red, TH
2143-2
Pomona Electronics
J21
1
1mm Uninsulated Shorting Plug, 10.16mm
spacing, TH
D3082-05
Harwin
J22
1
Default shunt positioning: between pins 1 and
2 of J2
2-881545-2
TE
J23
1
Default shunt positioning: between pins 1 and
2 of J5
2-881545-2
TE
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Bill of Materials
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Table 4-1. TLIN1431EVM Bill of Materials (continued)
Designator
Quantity
J24
1
Default shunt positioning: between pins of J10 2-881545-2
TE
J25
1
Default shunt positioning: between pins 1 and
2 of J14
2-881545-2
TE
J26
1
Default shunt positioning: between pins of J15 2-881545-2
TE
LBL1
1
Thermal Transfer Printable Labels, 0.650" W x THT-14-423-10
0.200" H - 10,000 per roll
Brady
R1
1
1.00Meg
RES, 1.00 M, 1%, 0.1 W, AEC-Q200 Grade 0, CRCW06031M00FKEA
0603
Vishay-Dale
R2, R8
2
200k
RES, 200 k, 1%, 0.1 W, 0603
RC0603FR-07200KL
Yageo
R3, R5, R9, R10, R32 5
10.0k
RES, 10.0 k, 1%, 0.1 W, 0603
RC0603FR-0710KL
Yageo
R4
1
100k
RES, 100 k, 5%, 0.1 W, AEC-Q200 Grade 0,
0603
CRCW0603100KJNEA
Vishay-Dale
R6, R11, R33
3
100k
RES, 100 k, 1%, 0.1 W, 0603
RC0603FR-07100KL
Yageo
R7, R18
2
10.2k
RES, 10.2 k, 1%, 0.1 W, 0603
RC0603FR-0710K2L
Yageo
R12
1
1.0k
RES, 1.0 k, 5%, 0.1 W, AEC-Q200 Grade 0,
0603
CRCW06031K00JNEA
Vishay-Dale
R13, R34
2
470
RES, 470, 5%, 0.25 W, AEC-Q200 Grade 0,
0603
ESR03EZPJ471
Rohm
R14, R16
2
3.01k
RES, 3.01 k, 1%, 0.1 W, AEC-Q200 Grade 0,
0603
CRCW06033K01FKEA
Vishay-Dale
R17
1
0
RES, 0, 5%, 0.1 W, 0603
CRCW06030000Z0EA
Vishay-Dale
R20
1
510k
RES, 510 k, 5%, 0.1 W, AEC-Q200 Grade 0,
0603
CRCW0603510KJNEA
Vishay-Dale
R35
1
22.0
RES, 22.0, 1%, 0.1 W, 0603
RC0603FR-0722RL
Yageo
S1, S2
2
Switch, Tactile, SPST-NO, 0.05A, 12V, SMT
EVQP1D05M
Panasonic
TP1, TP2, TP15,
TP16
4
Test Point, Multipurpose, Orange, TH
5013
Keystone
TP3, TP4, TP5
3
Test Point, Multipurpose, Red, TH
5010
Keystone
TP6, TP7, TP8, TP9,
TP10, TP11, TP12,
TP13, TP14
9
Test Point, Multipurpose, Black, TH
5011
Keystone
12
Value
Description
TLIN1431EVM User's Guide
Part Number
Manufacturer
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Bill of Materials
Table 4-1. TLIN1431EVM Bill of Materials (continued)
Designator
Quantity
TP17, TP19, TP20,
TP22, TP23
Value
Description
Part Number
Manufacturer
5
Test Point, Multipurpose, Green, TH
5126
Keystone
TP24, TP25
2
Test Point, Multipurpose, Yellow, TH
5014
Keystone
U1
1
Automotive LIN SBC with Integrated HighSide Switch and Watchdog
TLIN14315RGYRQ1
Texas Instruments
U2, U3
2
GENERAL-PURPOSE LOW-VOLTAGE
COMPARATOR, DBV0005A (SOT-23-5)
LMV331QDBVRQ1
Texas Instruments
SLLU326A – MAY 2022 – REVISED JUNE 2022
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TLIN1431EVM User's Guide
Copyright © 2022 Texas Instruments Incorporated
13
Bill of Materials
www.ti.com
5 Schematic
C29
PIN/nCS
WDT/CLK
WDI/SDI
nWDR/SDO
VCC
TSW-102-07-G-S
J7
HSS
2
R32
10.0k
TSW-103-07-G-S
nRST
2
1 HSSC/FSO
PIN/CS
WDT/CLK
WDI/SDI
WDR/SDO
VSUP
11
PV
10
HSS
RST
9
DIV_ON
HSS
18
GND
RXD
TXD
TSW-102-07-G-S
LIN
15
100k
PIN/nCS
WDI/SDI
nWDR/SDO
WDT/CLK
GND
C2
J8
R9
RXD 1
PV
TXD
RXD
TXD
GND
Thermal_Pad
R8
Ref.
200k 4.8% VSUP
2
3
3
10.0k
TP2
TSW-103-07-G-S
14
21
0.1uF
1
VBATPIN
19
LIMP
nRST
3
18
HSS
WDT/CLK
4
17
WAKE
nWDR/SDO
5
16
WKRQ/INH
WDI/SDI
6
15
LIN
PIN/nCS
7
14
LIMP
5013
GND
V+
GND
U3
LMV331QDBVRQ1
LIMP_MCU
4
EN/nINT_PIN 8
13
RXD
HSSC/FSO
12
TXD
9
21
100k
R10
10.0k
9.1% VSUP GND
or GND
GND
GND
VBATPIN
470
C3
50V
0.1uF
C12
50V
10nF
D1
VBAT
2
R11
VSUP
R13
GND
XU1
VCC
VSUP
J9
LIMP
VSUP
GND
GND
2
1
U2
LMV331QDBVRQ1
WAKE_MCU
4
R5
10.0k
9.1% VSUP GND
or GND
TLIN14315RGYRQ1
039544-3002
V+
GND
R6
R19
0
TSW-113-07-G-D
LIN
DIV_ON
13
12
1
SK02-0020QFN-CS-02A
GND
WAKE R17
0
GND
GND
3
10.0k
20
2
4
6
8
10
12
14
16
18
20
22
24
26
VCC
HSSC/FSO
1
R3
GND
J4
1
WKRQ
3
DIV_ON
5
PV
7
HSSC/FSO 9
GND
11
GND
13
GND
15
GND
17
WAKE_MCU 19
EN/nINT
21
LIMP_MCU 23
nRST
25
EN/INT
3
HSSC/FSO
LIMP
R2
Ref.
200k 4.8% VSUP
0.1uF
HSS
J6
19
WKRQ/INH
EN/nINT R7 10.2k EN/nINT_PIN 8
R20
510k
TSW-103-07-G-S
LIMP
VCC
VCC
C1
VBAT
7
4
6
5
VSUP
3
VCC
GND
3
2 PIN/nCS
1
EN/nINT 2
11
20
WKRQ/INH 16
J5
1
470
DIV_ON
VBATPIN
J3
R34
1
GND
WAKE
VCC
R4
100k
TSW-103-07-G-S
GND
17
10
2
WAKE
PV
3
2 WKRQ/INH
1 WKRQ
TSW-103-07-G-S
VSUP
5
1
VCC
1.00M
3
2 WDT/CLK
1
VCC
U1
VSUP
2
J2
5
VCC
100V
R1
INH
J1
2
47pF
GND
VSUP
GND
J10 Commander node selector
1
2
VSUP
TP7
TP8
TP9
TP10
TP11
TP12
5011
TP13
5011
TP14
5011
GND
GND
GND
R12
1.0k
GND
GND
GND
J21
GND
GND
5013
5013
5013
TP17 TP19 TP20 TP22 TP23 TP24
TP25
5126
5126
5126
5126
5126
5014
5014
RXD
GND
TP15 TP16 TP1
TXD
5011
PIN/nCS
5011
WDT/CLK
5011
PV
5011
nRST
5011
5010
nWDR/SDO
2143-2
C5
50V
10uF
5010
WAKE
C4
50V
1uF
TP6
5011
5010
B180B-13-F
2
TP3
TP4
TP5
VCC
VBAT
HSS
1
WKRQ/INH
TSW-102-07-G-S
D2
BAV21WS-TP
J11
LIN
GND
J13
C6
50V
220pF
VBAT
2
1
GND
GND
VSUP
GND
D3
ESD1LIN24-Q1
15V
J14 TSW-103-07-G-S
GND
VSUP
1
2
3
TSW-102-07-G-S
S1
VCC
C7
10V
10uF
C8
16V
1uF
1
2
TXD
HSS
R14
3.01k
EVQP1D05M
R15
51
GND
C9
50V
220pF
S3
4
3
R16
3.01k
GND
C10
50V
10nF
J15 GND
J16
VBAT
GND
GND
3
2 LIN
1
1
2
WAKE
DIV_ON
HSSC/FSO
PIN/nCS
WDI/SDI
nWDR/SDO
WDT/CLK
WAKE_MCU
EN/nINT
LIMP_MCU
nRST
TSW-102-07-G-S
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
GPIO0/I2C(SDA)
GPIO1/I2C(SCL)
GPIO6/PWM1/SPI(CS)
GPIO4/SPI(SIMO)/UART(TXD)
GPIO5/SPI(SOMI)/UART(RXD)
GPIO2/SPI(SCLK)
GPIO3/PWM2
GPIO7/PWM0
GPIO10/VEREFGPIO11/VEREF+
218-10LPST
VCC
TSW-103-07-G-S
J17
GND
RXD
TXD
1
2
J18
LIMP
LIMP_PD
TSW-102-07-G-S
R33
100k
GND
RXD
S2
R35
nRST
C11
50V
220pF
2
1
GPIO9/ADC2
GPIO8/ADC3
218-2LPST
TSW-102-07-G-S
R18
10.2k
1
2
3 S4
4
22.0
C30
50V
220pF
PV
1
2
4
3
R31
AIN_B_0
0
EVQP1D05M
GND
GND
GND
Figure 5-1. TLIN1431EVM Schematic
14
TLIN1431EVM User's Guide
SLLU326A – MAY 2022 – REVISED JUNE 2022
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Copyright © 2022 Texas Instruments Incorporated
STANDARD TERMS FOR EVALUATION MODULES
1.
Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or
documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance
with the terms set forth herein. User's acceptance of the EVM is expressly subject to the following terms.
1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility
evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not
finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For
clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions
set forth herein but rather shall be subject to the applicable terms that accompany such Software
1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned,
or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production
system.
2
Limited Warranty and Related Remedies/Disclaimers:
2.1 These terms do not apply to Software. The warranty, if any, for Software is covered in the applicable Software License
Agreement.
2.2 TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM
to User. Notwithstanding the foregoing, TI shall not be liable for a nonconforming EVM if (a) the nonconformity was caused by
neglect, misuse or mistreatment by an entity other than TI, including improper installation or testing, or for any EVMs that have
been altered or modified in any way by an entity other than TI, (b) the nonconformity resulted from User's design, specifications
or instructions for such EVMs or improper system design, or (c) User has not paid on time. Testing and other quality control
techniques are used to the extent TI deems necessary. TI does not test all parameters of each EVM.
User's claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects in the EVMs within ten (10)
business days after delivery, or of any hidden defects with ten (10) business days after the defect has been detected.
2.3 TI's sole liability shall be at its option to repair or replace EVMs that fail to conform to the warranty set forth above, or credit
User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during the warranty
period to the address designated by TI and that are determined by TI not to conform to such warranty. If TI elects to repair or
replace such EVM, TI shall have a reasonable time to repair such EVM or provide replacements. Repaired EVMs shall be
warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day
warranty period.
WARNING
Evaluation Kits are intended solely for use by technically qualified,
professional electronics experts who are familiar with the dangers
and application risks associated with handling electrical mechanical
components, systems, and subsystems.
User shall operate the Evaluation Kit within TI’s recommended
guidelines and any applicable legal or environmental requirements
as well as reasonable and customary safeguards. Failure to set up
and/or operate the Evaluation Kit within TI’s recommended
guidelines may result in personal injury or death or property
damage. Proper set up entails following TI’s instructions for
electrical ratings of interface circuits such as input, output and
electrical loads.
NOTE:
EXPOSURE TO ELECTROSTATIC DISCHARGE (ESD) MAY CAUSE DEGREDATION OR FAILURE OF THE EVALUATION
KIT; TI RECOMMENDS STORAGE OF THE EVALUATION KIT IN A PROTECTIVE ESD BAG.
www.ti.com
3
Regulatory Notices:
3.1 United States
3.1.1
Notice applicable to EVMs not FCC-Approved:
FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software
associated with the kit to determine whether to incorporate such items in a finished product and software developers to write
software applications for use with the end product. This kit is not a finished product and when assembled may not be resold or
otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition
that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference.
Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must
operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter.
3.1.2
For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant:
CAUTION
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to
operate the equipment.
FCC Interference Statement for Class A EVM devices
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to
correct the interference at his own expense.
FCC Interference Statement for Class B EVM devices
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more
of the following measures:
•
•
•
•
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
3.2 Canada
3.2.1
For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210 or RSS-247
Concerning EVMs Including Radio Transmitters:
This device complies with Industry Canada license-exempt RSSs. Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this device must accept any interference, including interference that may
cause undesired operation of the device.
Concernant les EVMs avec appareils radio:
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation
est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit
accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
Concerning EVMs Including Detachable Antennas:
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser)
gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type
and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for
successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types
listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated.
Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited
for use with this device.
2
www.ti.com
Concernant les EVMs avec antennes détachables
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et
d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage
radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope
rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le
présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le
manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne
non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de
l'émetteur
3.3 Japan
3.3.1
Notice for EVMs delivered in Japan: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 日本国内に
輸入される評価用キット、ボードについては、次のところをご覧ください。
http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page
3.3.2
Notice for Users of EVMs Considered “Radio Frequency Products” in Japan: EVMs entering Japan may not be certified
by TI as conforming to Technical Regulations of Radio Law of Japan.
If User uses EVMs in Japan, not certified to Technical Regulations of Radio Law of Japan, User is required to follow the
instructions set forth by Radio Law of Japan, which includes, but is not limited to, the instructions below with respect to EVMs
(which for the avoidance of doubt are stated strictly for convenience and should be verified by User):
1.
2.
3.
Use EVMs in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal
Affairs and Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for
Enforcement of Radio Law of Japan,
Use EVMs only after User obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to
EVMs, or
Use of EVMs only after User obtains the Technical Regulations Conformity Certification as provided in Radio Law of Japan
with respect to EVMs. Also, do not transfer EVMs, unless User gives the same notice above to the transferee. Please note
that if User does not follow the instructions above, User will be subject to penalties of Radio Law of Japan.
【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて
いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの
措置を取っていただく必要がありますのでご注意ください。
1.
2.
3.
電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用
いただく。
実験局の免許を取得後ご使用いただく。
技術基準適合証明を取得後ご使用いただく。
なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。
上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ
ンスツルメンツ株式会社
東京都新宿区西新宿６丁目２４番１号
西新宿三井ビル
3.3.3
Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page
電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧ください。http:/
/www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page
3.4 European Union
3.4.1
For EVMs subject to EU Directive 2014/30/EU (Electromagnetic Compatibility Directive):
This is a class A product intended for use in environments other than domestic environments that are connected to a
low-voltage power-supply network that supplies buildings used for domestic purposes. In a domestic environment this
product may cause radio interference in which case the user may be required to take adequate measures.
3
www.ti.com
4
EVM Use Restrictions and Warnings:
4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT
LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.
4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling
or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information
related to, for example, temperatures and voltages.
4.3 Safety-Related Warnings and Restrictions:
4.3.1
User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user
guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and
customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input
and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or
property damage. If there are questions concerning performance ratings and specifications, User should contact a TI
field representative prior to connecting interface electronics including input power and intended loads. Any loads applied
outside of the specified output range may also result in unintended and/or inaccurate operation and/or possible
permanent damage to the EVM and/or interface electronics. Please consult the EVM user guide prior to connecting any
load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative.
During normal operation, even with the inputs and outputs kept within the specified allowable ranges, some circuit
components may have elevated case temperatures. These components include but are not limited to linear regulators,
switching transistors, pass transistors, current sense resistors, and heat sinks, which can be identified using the
information in the associated documentation. When working with the EVM, please be aware that the EVM may become
very warm.
4.3.2
EVMs are intended solely for use by technically qualified, professional electronics experts who are familiar with the
dangers and application risks associated with handling electrical mechanical components, systems, and subsystems.
User assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees,
affiliates, contractors or designees. User assumes all responsibility and liability to ensure that any interfaces (electronic
and/or mechanical) between the EVM and any human body are designed with suitable isolation and means to safely
limit accessible leakage currents to minimize the risk of electrical shock hazard. User assumes all responsibility and
liability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors or
designees.
4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal,
state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all
responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and
liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local
requirements.
5.
Accuracy of Information: To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate
as possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as
accurate, complete, reliable, current, or error-free.
6.
Disclaimers:
6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY MATERIALS PROVIDED WITH THE EVM (INCLUDING, BUT NOT
LIMITED TO, REFERENCE DESIGNS AND THE DESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL
FAULTS." TI DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT
NOT LIMITED TO ANY EPIDEMIC FAILURE WARRANTY OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADE
SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS.
6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS SHALL BE
CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANY OTHER INDUSTRIAL OR
INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRD PARTY, TO USE THE
EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANY INVENTION, DISCOVERY OR
IMPROVEMENT, REGARDLESS OF WHEN MADE, CONCEIVED OR ACQUIRED.
7.
4
USER'S INDEMNITY OBLIGATIONS AND REPRESENTATIONS. USER WILL DEFEND, INDEMNIFY AND HOLD TI, ITS
LICENSORS AND THEIR REPRESENTATIVES HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, DAMAGES, LOSSES,
EXPENSES, COSTS AND LIABILITIES (COLLECTIVELY, "CLAIMS") ARISING OUT OF OR IN CONNECTION WITH ANY
HANDLING OR USE OF THE EVM THAT IS NOT IN ACCORDANCE WITH THESE TERMS. THIS OBLIGATION SHALL APPLY
WHETHER CLAIMS ARISE UNDER STATUTE, REGULATION, OR THE LAW OF TORT, CONTRACT OR ANY OTHER LEGAL
THEORY, AND EVEN IF THE EVM FAILS TO PERFORM AS DESCRIBED OR EXPECTED.
www.ti.com
8.
Limitations on Damages and Liability:
8.1 General Limitations. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE,
INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESE
TERMS OR THE USE OF THE EVMS , REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITED TO, COST OF REMOVAL OR
REINSTALLATION, ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, RETESTING,
OUTSIDE COMPUTER TIME, LABOR COSTS, LOSS OF GOODWILL, LOSS OF PROFITS, LOSS OF SAVINGS, LOSS OF
USE, LOSS OF DATA, OR BUSINESS INTERRUPTION. NO CLAIM, SUIT OR ACTION SHALL BE BROUGHT AGAINST TI
MORE THAN TWELVE (12) MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS
OCCURRED.
8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY USE OF AN EVM PROVIDED
HEREUNDER, INCLUDING FROM ANY WARRANTY, INDEMITY OR OTHER OBLIGATION ARISING OUT OF OR IN
CONNECTION WITH THESE TERMS, , EXCEED THE TOTAL AMOUNT PAID TO TI BY USER FOR THE PARTICULAR
EVM(S) AT ISSUE DURING THE PRIOR TWELVE (12) MONTHS WITH RESPECT TO WHICH LOSSES OR DAMAGES ARE
CLAIMED. THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT.
9.
Return Policy. Except as otherwise provided, TI does not offer any refunds, returns, or exchanges. Furthermore, no return of EVM(s)
will be accepted if the package has been opened and no return of the EVM(s) will be accepted if they are damaged or otherwise not in
a resalable condition. If User feels it has been incorrectly charged for the EVM(s) it ordered or that delivery violates the applicable
order, User should contact TI. All refunds will be made in full within thirty (30) working days from the return of the components(s),
excluding any postage or packaging costs.
10. Governing Law: These terms and conditions shall be governed by and interpreted in accordance with the laws of the State of Texas,
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