AN-1632 LP5521TMEV Programmable LED
Driver
User's Guide
Literature Number: SNVA241E
April 2008 – Revised September 2016
Contents
1
2
3
4
5
Read This First .................................................................................................................... 5
1.1
About this Manual ........................................................................................................ 5
1.2
Related Documentation from Texas Instruments .................................................................... 5
1.3
FCC Warning ............................................................................................................. 5
1.4
If You Need Assistance
.................................................................................................
3.1
General Description ...................................................................................................... 6
3.2
Features ................................................................................................................... 6
3.3
Applications ............................................................................................................... 7
3.4
LP5521 Typical Application Drawing .................................................................................. 7
LP5521EVM Hardware........................................................................................................... 8
LP5521 Evaluation Software ................................................................................................ 10
5.1
General................................................................................................................... 10
5.2
LP5521 Evaluation Software Installation ............................................................................ 10
..................................................................................
.......................................................................................
6
Examples ..........................................................................................................................
6.1
Starting up the LP5521 ................................................................................................
6.2
Set R, G, and B LEDs ON .............................................................................................
7
Using Scripts .....................................................................................................................
7.1
Register Access.........................................................................................................
7.2
Parameters ..............................................................................................................
7.3
Loops .....................................................................................................................
7.4
Command Reference ..................................................................................................
8
Command Compiler ............................................................................................................
8.1
Instruction Reference ..................................................................................................
8.2
Example Code ..........................................................................................................
9
Evaluation Board Schematics ..............................................................................................
10
PCB Layout .......................................................................................................................
11
Bill of Materials ..................................................................................................................
Revision History ..........................................................................................................................
2
5
Introduction ......................................................................................................................... 6
Description of the LP5521 ..................................................................................................... 6
5.3
Evaluation Software Uninstallation
10
5.4
Graphical User Interface (GUI)
10
Table of Contents
18
18
18
19
19
21
21
21
23
23
24
25
31
32
33
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List of Figures
1
Evaluation Board Connectors and Setup ................................................................................. 8
2
LP5521 Evaluation Board................................................................................................... 9
3
Evaluation Software ........................................................................................................ 11
4
Direct Register Access Dialog ............................................................................................ 17
5
Top Level .................................................................................................................... 25
6
Microcontroller .............................................................................................................. 26
7
LP5521 (Device 1) ......................................................................................................... 27
8
LP5521 (Device 2) ......................................................................................................... 28
9
LP5521 (Device 3) ......................................................................................................... 29
10
LP5521 (Device 4) ......................................................................................................... 30
11
Top Overlay ................................................................................................................. 31
12
Layer 1 (Top, Signal)
13
14
15
......................................................................................................
Layer 2 (GND) ..............................................................................................................
Layer 4 (Power) ............................................................................................................
Layer 4 (Bottom, Signal) ..................................................................................................
31
31
31
31
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All other trademarks are the property of their respective owners.
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List of Figures
3
EVM Warnings and Restrictions
It is possible to feed VDD voltage from external source to connector J2. It is important to operate this EVM
within the VDD voltage range of 2.7 V to 5.5 V. The VDD voltage must never exceed 6 V.
Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the
EVM. If there are questions concerning the input range, please contact a TI field representative prior to
connecting the input power.
During normal operation, some circuit components may have case temperatures greater than 60°C. The
EVM is designed to operate properly with certain components above 60°C as long as the input and output
ranges are maintained. These components include but are not limited to LEDs, linear regulators, switching
transistors, Inductors, pass transistors, and current sense resistors. These types of devices can be
identified using the EVM schematic located in the EVM User’s Guide.
When placing measurement probes near these devices please be aware that these devices may be very
warm to the touch.
The white LEDs which are mounted on the EVM emit light which, at a high enough intensity, have the
potential to be harmful to the eyes. To reduce the risk of eye damage TI recommends using engineering
controls (for example, light-blocking screens or filters) or personal protection equipment (for example,
light‑filtering or blocking eyewear). Users should not look directly at any operating LED component
regardless of LED color or intensity.
User's Guide
SNVA241E – April 2008 – Revised September 2016
LP5521EV User Guide
1
Read This First
1.1
About this Manual
This user’s guide describes the characteristics, operation, and use of the LP5521 evaluation module
(EVM). This user’s guide includes a schematic diagram and bill of materials (BOM).
1.2
Related Documentation from Texas Instruments
LP5521 data sheet: LP5521 Programmable Three Channel LED Driver (SNVS441)
AN-1562 LP5521 Programming Considerations (SNVA205)
1.3
FCC Warning
This equipment is intended for use in a laboratory test environment only. It generates, uses, and can
radiate radio frequency energy and has not been tested for compliance with the limits of computing
devices pursuant to subpart J of part 15 of FCC rules, which are designed to provide reasonable
protection against radio frequency interference. Operation of this equipment in other environments may
cause interference with radio communications, in which case the user, at his own expense, will be
required to take whatever measures may be required to correct this interference.
1.4
If You Need Assistance
Contact your local TI sales representative.
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5
Introduction
2
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Introduction
The Texas Instruments LP5521TMEV evaluation module helps designers evaluate the operation and
performance of LP5521 integrated circuit (IC). The LP5521TMEV uses a high-efficiency charge pump,
three independent LED channels, and program memory for creating variety of lighting sequences. More
information about the LP5521 capabilities can be found in the device datasheet (SNVS441).
The EVM contains power supply connection for the VDD voltage. Test points are provided for key signals.
The on-board microcontroller can be used to control the digital input signals of the LP5521 and to control
the device with I2C interface. A graphical user interface (GUI) is provided for fast and easy evaluation of
the device.
If an external power supply is used, VDD voltage must be within 2.7 V to 5.5 V. This voltage range is within
the absolute maximum input range of the LP5521. Users are cautioned to evaluate their specific operating
conditions and choose components with the appropriate voltage ratings before designing this support
circuitry into a final product.
3
Description of the LP5521
3.1
General Description
The LP5521 is a three-channel LED driver designed to produce variety of lighting effects for mobile
devices. A high-efficiency charge pump enables LED driving over full Li-Ion battery voltage range. The
device has a program memory for creating variety of lighting sequences. When program memory has
been loaded, LP5521 can operate autonomously without processor control allowing power savings.
3.2
Features
•
•
•
•
•
•
•
•
•
•
•
•
•
•
6
Adaptive Charge Pump With 1× and 1.5× Gain Provides Up to 95% LED Drive Efficiency
Charge Pump with Soft Start and Overcurrent, Short-Circuit Protection
Low Input Ripple and EMI
Very Small Solution Size, No Inductor or Resistors Required
200-nA Typical Shutdown Current
Automatic Power Save Mode
I2C-Compatible Interface
Independently Programmable Constant Current Outputs with 8-Bit Current Setting and 8-Bit PWM
Control
Typical LED Output Saturation Voltage 50 mV and Current Matching 1%
Three Program Execution Engines with Flexible Instruction Set
Autonomous Operation Without External Control
Large SRAM Program Memory
Two General Purpose Digital Outputs
36-pin DSBGA package, 2.478 mm × 2.478 mm × 0.6 mm, 0.4 mm pitch
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Description of the LP5521
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3.3
Applications
•
•
•
•
•
•
•
•
3.4
Fun and Indicator Lights
LCD Sub-Display Backlighting
Keypad RGB Backlighting and Phone Cosmetics
Vibra, Speakers, Waveform Generator
Blood Glucose Meter
Handheld POS Terminals
Electronic Access Control
Where RGB Indication is Needed
LP5521 Typical Application Drawing
CFLY1
CFLY2
0.47 µF
CFLY1P
+
CIN
1 µF
0.47 µF
CFLY1N
CFLY2P
VDD
CFLY2N
VOUT
RGB LED 0...25.5 mA/LED
-
SCL
SDA
EN
MCU
COUT
1 µF
R
LP5521
G
CLK_32K
B
INT
TRIG
GPO
ADDR_SEL0
ADDR_SEL1
GNDs
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LP5521EVM Hardware
4
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LP5521EVM Hardware
Figure 1 shows how to set up shunts on LP5521TMEV. If external VDD supply is used it must be
connected to connector J2. Jumper J4 selects supply voltage source. This setup uses on-board
microcontroller to control LP5521. LP5521TMEV must be connected to a Windows PC with USB cable.
On-board LEDs are used as load.
Jumpers J1, J3, J8, and J9 select if white or RGB LEDs are used.
The LP5521 supports I2C interface. The LP5521 device is connected to the onboard microcontroller
through connector J13. If user wants to use own controller to control the LP5521, shunts on connector J13
need to be removed and external controller needs to be connected to the pins on the right side of the J13.
Figure 1. Evaluation Board Connectors and Setup
8
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Figure 2 shows main parts of LP5521 EVM. The board has four LP5521 circuits with the necessary
external components placed around them. Test points for the signals are on the board edges. INT and
TRIG lines for the four chips are tied together to make it possible to synchronize four LP5521 and make
interesting lighting effects. GPO and INT pins have indicator LEDs. Each chip has own I2C address.
Jumper J4 on the evaluation board selects supply voltage VDD from either external power or USB power. If
external power supply is used, the VDD and ground GND can be connected to the green power connector
J2. Possible supply voltage range is from 2.7 V to 5.5 V. When the USB 5-V powering is used, onboard
regulator is used to generate a 3.3-V supply voltage.
There are red indicator LEDs connected to the INT and GPO pins to detect the functionality of the pins.
With INT LED time it is possible to determine to which external interrupt is sent. Interrupt can be cleared
by reading the Status/INT register (offset 0Ch), or by simply pressing the Read Registers button on the
evaluation software when the chip which has sent the interrupt is selected. Note that if INT pin is set to
work as a CMOS output (EN_GPO_INT bit high) the functionality of the LED is reversed; that is, when
GPO_INT is high then the LED is off and when GPO_INT is low, the LED is on. See Section 9 for
reference.
Figure 2. LP5521 Evaluation Board
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LP5521 Evaluation Software
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5
LP5521 Evaluation Software
5.1
General
The LP5521TMEVM is connected to the computer via USB. The EVM is controlled with special evaluation
software. The on-board microcontroller is used to provide easy I2C communication, as well as to control
the digital inputs of the LP5521 IC. The microcontroller is powered by default from USB. The LP5521
device can be powered from the USB or from external power supply.
5.2
LP5521 Evaluation Software Installation
Before the LP5521 evaluation software can be used it must be installed. Open the folder containing the
installation package and double click the “LP5521TMEV-1.0.0-installer.exe”. If Windows® prompts
verification of the installation click “Yes”. The license agreement window opens. Read through the license
agreement and click “I agree”. Next the installer prompts for components to install. Select additionally
“Desktop Shortcut” if needed and click “Next>”. Then the installer prompts for installation directory. TI
recommends installing the program to its default location. Click “Install” button to start installation.
Evaluation software is now installed. To read release notes and/or start an application make appropriate
selections and click “Finish” to exit.
5.3
Evaluation Software Uninstallation
Uninstallation of the LP5521 evaluation software is done through the Windows Control Panel. Open
Control Panel → Programs and Features. Find LP5521 EVM from the list, right click it and select Uninstall.
5.4
Graphical User Interface (GUI)
When LP5521 evaluation software is run it looks like Figure 3. Main parts of the GUI are:
• Menu toolbar
• Quick access toolbar
• Device controls
• Quick start/ Device/ Code/ Log Tabs
• Register access related controls
• Status bar
10
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LP5521 Evaluation Software
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Figure 3. Evaluation Software
5.4.1
Menu Toolbar
Menu toolbar has four sub menus: File, View, Tools and Help.
•
•
•
•
•
•
•
File->Load Code: loads source of binary to code editor.
File->Save Source Code: Saves source code from code editor to a file.
File->Save Binary File: Saves code from code editor to a file in binary format.
File->Exit: Exits the application.
View->Console: Opens console in the right side of the window. See Section 5.4.8 for more information.
Tools->Direct Register Access: Opens direct register access dialog. See Section 5.4.7
Tools->Update Firmware: Can be used to update the firmware of the microcontroller on EVM.
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LP5521 Evaluation Software
5.4.2
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Quick Access Toolbar
Quick Access toolbar contains shortcuts to features placed under File menu.
5.4.3
Device Controls
Checkbox “Enable Devices” controls the state of EN signal.
Dropdown menu is used to select to which device I2C commands are sent.
Checkbox “Enable CLK_32K” enables onboard clock signal generator .
Push button “Trigger” send short pulse to TRIGGER input.
5.4.4
Tabs
There are four separate tabs. See Section 5.4.4.1 to Section 5.4.4.4 for more detailed description.
5.4.4.1
Quick Start Tab
Quick Start tab can be used to quickly load example code files to the program memory or to control
directly current and PWM of the LEDS.
12
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Click “…” button to select code file to be loaded for each device and click “Load and Run!” button. The
evaluation software is provided with several example programs. They can be found in
“program_examples” directory. Some of the examples wait for TRIGGER signal before they start.
TRIGGER signal can be toggled by clicking “Trigger” button or pressing button S1 on EVM.
Alternatively LEDs can be controlled directly by using sliders on the lower part of the tab. Each LED has
separate slider for current and PWM value. Device to be controlled is selected by dropdown menu labeled
“Selected device”. Notice that LED currents can be adjusted while programs are running, but adjusting
PWM stops the execution of the current programs.
5.4.4.2
Device Tab
Device Tab contains most of the register controls. Change to any control is written immediately to the
selected device unless “Auto Write” checkbox is unchecked. Refer to LP5521 datasheet for more detailed
information.
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LP5521 Evaluation Software
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On the left side there are controls covering most of the device functions.
Master Chip Enable— Enables device internal start-up sequence.
GPO Pin State— Controls the state of the GPO pin.
Logarithmic PWM— Checking this sets INT pin to fucntion as GPO pin.
Enable INT pin GPO function— Selected register is read from the selected device.
NT Pin State— Controls the state of the INT pin. (it must be in GPO mode).
Power-Save Mode— Enabled power-save mode.
PWM Clock— Selects between 256 Hz (source external 32-kHz clock) and 558-Hz clock (source internal
oscillator).
Charge Pump Mode— Sets mode of the charge pump to OFF, forced bypass mode, forced 1.5× mode or
automatic mode.
R Channel Supply— Selects between charge pump and battery.
LED-Controller Clock Source— Options: external 32-kHz or internal clock or automatic selection.
Exec Mode— Selects the execution mode of each engine. Options: Hold, Step, Run and Step, but not
increment PC.
Operation Mode— Selects the operation mode of each engine. Options: Disabled, Load program, Run
program and Direct control.
PWM— Sets the PWM value for each output.
Current— Sets the LED current for each output.
On the right side are status indicators for interrupt and trigger pin and various status bits.
INTERRUPT Pin— Shows the state of the INTERRUPT pin.
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TRIGGER Pin— Shows the state of the TRIGGER pin.
Clock State— Shows currently selected clock source.
Interrupt from X Channel— Shows which channel(s) triggered interrupt.
NT Pin State— Controls the state of the INT pin. (it must be in GPO mode).
Power-Save Mode— Enabled power-save mode.
Current— Sets the LED current for each output.
5.4.4.3
Code Tab
The Code tab is divided to source code editor (left side) and binary view (right side). Code file (source or
binary) can be loaded by clicking “Load Code” button in Quick Access toolbar or in the File menu. File
format is automatically detected. “Assemble>>" button is used for compiling code in the source code
editor. Results are shown in binary view. It is possible to disassemble contents of binary view by clicking
">” button.
8.1
Instruction Reference
8.1.1
ramp
Ramp command generates a PWM ramp from current value. Ramp command has two parameters – first
is time in milliseconds (maximum time = 1000 ms x number of steps) and second is number of steps
(positive or negative integer, 2-128) separated by comma.
Example: ramp 100,50
8.1.2
wait
With wait command, program execution stops for time defined. Command has one parameter, time in
milliseconds. (1-999)
Example: wait 500
8.1.3
branch
Branch command can be used to loop certain sequences in program. Command loads step number to
program counter. It has two parameters, loop count (0-63, 0 means infinite loop) and label separated with
comma, Label must be defined before using in a branch command. The following example loops 5 times
between label1 and branch command.
Example: label1: …
…
…
branch 5, label1
8.1.4
set_pwm
set_pwm command sets PWM output value. Command has one parameter, PWM value (0-255).
Example: set_pwm 23
8.1.5
start
start command resets program counter and continues executing from the beginning of the section.
Example: start
8.1.6
trigger
trigger command waits or sends trigger. Command has two parameters, wait channel and send channel.
Channels are defined as: r = red, g = green, b = blue and e = external.
Examples: trigger sr => Send trigger to red channel
trigger sg => Send trigger to green channel
trigger sb => Send trigger to blue channel
trigger se => Send trigger to external channel
trigger sgb => Send trigger to green and blue channel
trigger wr => Wait for trigger from red channel
trigger sr,wb => Send trigger to red channel and wait for trigger from blue channel.
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Command Compiler
8.1.7
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end
end command ends program execution. Optionally interrupt signal can be sent or program counter can be
reset. Command can have up to two parameters. I = send interrupt to INT pin, R = reset program counter.
Examples:
end I
end R
end R,I
end I,R
end
8.1.8
Comment
Comment lines must start with “#” or “/” character.
Example: # red LED section start
8.1.9
Sections
Red, green and blue LED engine sections start with .RED, .GREEN or .BLUE.
Example: .RED
8.1.10
Labels
Any words with colon (:) as last character.
Example: label1:
8.2
Example Code
# red LED section
start
.RED
ramp 20.5,6
ramp 10,-15
wait 10
# green LED section
start
.GREEN
ramp 10,-15
start
# blue LED section
start
.BLUE
ramp 10,15
end R
24
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Evaluation Board Schematics
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9
Evaluation Board Schematics
J3
VDD
VDD VDD_3.3
EXT_VDD
1
2
1727010
J4
3
2
1
GND
VDD
VDD VDD VDD
VDD_3.3
SCL
SDA
2
4
6
8
10
12
14
CLK_32K_E
TRIG_E
INT_E
EN_E
SCL_E
SDA_E
GPO
14
13
12
11
10
9
8
7
6
5
4
3
2
1
J5
1
2
3
TSW-103-07-G-S
GPO1
VDD
H
SV600228B_LP5521.SchDoc
GND
SCL
SDA
TSW-107-07-G-D
GND
VOUT1
GND_W
GND_RGB
EN
CLK_32K
INT
TRIG
GND
R
G
B
VDD_LP5221
1
3
5
7
9
11
13
VOUT
ADDR_SEL0
ADDR_SEL1
J13
CLK_32K
TRIG
INT
EN
V3.3
EN
CLK_32K
INT
TRIG
R1
G1
B1
R
G
B
VDD_LP5221
SCL
SDA
R3 R4 R5
10k 1.5k 1.5k
UC1
SV600228B_uController.SchDoc
TSW-103-07-G-S
H
SV600228B_LP5521.SchDoc
VOUT
R2
G2
B2
J7
GND
VOUT2
J8
1
2
3
GND_W
GND_RGB
ADDR_SEL0
ADDR_SEL1
GPO
J9
5
4
3
2
1
TSW-103-07-G-S
GPO2
VDD
R7
D1
2
3
4
300
Red
R8
1
300
EN
CLK_32K
INT
TRIG
S1
B3SL-1022P
1
2
D2
GPO1
SCL
SDA
TRIG_E
1
2
C17
0.1µF
R9
1
300
SCL
SDA
2
Red
EN
CLK_32K
INT
TRIG
D4
GPO3
R10
1
300
2
Red
ADDR_SEL0
ADDR_SEL1
D5
GPO4
R11
300
1
GND
VOUT3
J10
1
2
3
GPO
J11
5
4
3
2
1
TSW-103-07-G-S
GPO3
VDD
H
SV600228B_LP5521.SchDoc
GND
D3
GPO2
VOUT
R3
G3
B3
GND_W
GND_RGB
ADDR_SEL0
ADDR_SEL1
Red
GND
R
G
B
GPO1
GPO2
GPO3
GPO4
TSW-105-07-G-S
GND
VOUT1
VOUT2
VOUT3
VOUT4
TSW-105-07-G-S
GND
VDD_LP5221
INT_E
H
SV600228B_LP5521.SchDoc
R6
10k
VDD_LP5221
VDD
VDD
R1
G1
B1
R2
G2
B2
R3
G3
B3
R4
G4
B4
R
G
B
VOUT
R4
G4
B4
GND
J12
VOUT4
1
2
3
GND_W
GND_RGB
GPO
GPO4
TSW-103-07-G-S
2
GND
Red
U_LP5521_EVM_Hardware
SV600228B_Hardware.SchDoc
GND
GND
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Figure 5. Top Level
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25
Evaluation Board Schematics
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3.3V
J1
TCK
TMS
TDO
TDI
nRST
1
2
3
4
5
6
V3.3
VBUS
3.3V 400mA
TSW-106-07-G-S
3.3V
U1A
3.3V
8
GND
5
IN
OUT
EN
NR
1
3
C5
0.01µF
C6
0.1µF
C7
0.01µF
C8
0.01µF
C9
0.1µF
9
C1
1µF
C4
1µF
4
GND
TPS73633DRBR
3.3V
C2
0.01µF
C3
1µF
U2
GND
11
26
42
54
GND
3.3V
VDD
VDD
VDD
VDD
HIB
XOSC0
XOSC1
R1
10k
VDC
2
25
56
VDC
C10
0.1µF
37
32
GND
C11
2.2µF
C12
1µF
C13
0.1µF
nRST
C14
0.1µF
GND
OSC0
OSC1
1
GND
38
Y1
41
VDDC
VDDC
VBAT
WAKE
RST
OSC0
OSC1
0
2
ABM3-16.000MHZ-D2Y-T
16MHz
C15
C16
10pF
10pF
GND
40
R2
VDDA
EN
INT
TRIG
17
18
19
20
21
22
23
24
GND
PA0/U0Rx
PA1/U0Tx
PA2/SSI0Clk
PA3/SSI0Fss
PA4/SSI0Rx
PA5/SSI0Tx
PA6
PA7
VBUS
SCL
SDA
45
46
47
48
58
57
1
4
PB0/USB0VID
PB1/USB0VBUS
PB2/I2C0SCL
PB3/I2C0SDA
PB4
PB5
PB6
PB7
PC0/TCK/SWCLK
PC1/TMS/SWDIO
PC2/TDI
PC3/TDO/SWO
PC4
PC5
PC6
PC7
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PE0
PE1
PE2
PE3
PE4
PE5
PF0
PF1
PF2
PF3
PF4
GNDX
GNDA
GND
GND
GND
GND
GND
GND
GND
33
34
VBUS
36
52
51
50
49
16
15
14
13
GND
J2
TCK
TMS
TDI
TDO
1
2
3
4
5
USB_DM
USB_DP
1734035-2
61
62
63
64
43
44
53
10
GND
GND
Pin 4 is for USB OTG (USB ID)
9
8
7
6
59
60
28
29
30
31
5
CLK_32K
35
3
12
27
39
55
TM4C123GH6PMTR
GND
Copyright © 2016, Texas Instruments Incorporated
Figure 6. Microcontroller
26
LP5521EV User Guide
SNVA241E – April 2008 – Revised September 2016
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Evaluation Board Schematics
www.ti.com
VOUT
C32
0.47µF
U6
SCL
D1
SDA
E1
EN
E2
CLK_32K
D3
INT
E3
E4
TRIG
ADDR_SEL0
ADDR_SEL1
C2
B2
VDD_LP5221
C4
C33
1µF
SCL
CFLY1P
CFLY1N
SDA
CFLY2P
CFLY2N
EN
CLK_32K
VOUT
INT
R
G
B
TRIG
ADDR_SEL0
ADDR_SEL1
GPO
GND
GND
VDD
B4
B3
A4
A3
C
3 0
C31
0.47µF
A2
C1
B1
A1
1µF
D19
4
3
5
2
6
1
GND_RGB
D2
D4
C3
LP5521TM/NOPB
ASMT-YTC2-0AA02
Rgb
GND
GND
GND
D21
1
2
GND_W
White
D20
1
2
White
D18
1
2
White
R
G
B
GPO
Copyright © 2016, Texas Instruments Incorporated
Figure 7. LP5521 (Device 1)
SNVA241E – April 2008 – Revised September 2016
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LP5521EV User Guide
Copyright © 2008–2016, Texas Instruments Incorporated
27
Evaluation Board Schematics
www.ti.com
VOUT
C21
0.47µF
U5
SCL
D1
SDA
E1
EN
E2
CLK_32K
D3
INT
E3
E4
TRIG
ADDR_SEL0
ADDR_SEL1
C2
B2
VDD_LP5221
C4
C23
1µF
SCL
CFLY1P
CFLY1N
SDA
CFLY2P
CFLY2N
EN
CLK_32K
VOUT
INT
R
G
B
TRIG
ADDR_SEL0
ADDR_SEL1
GPO
GND
GND
VDD
B4
B3
A4
A3
C18
C20
0.47µF
A2
C1
B1
A1
1µF
D15
4
3
5
2
6
1
GND_RGB
D2
D4
C3
LP5521TM/NOPB
ASMT-YTC2-0AA02
Rgb
GND
GND
GND
D17
1
2
GND_W
White
D16
1
2
White
D14
1
2
White
R
G
B
GPO
Copyright © 2016, Texas Instruments Incorporated
Figure 8. LP5521 (Device 2)
28
LP5521EV User Guide
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Evaluation Board Schematics
www.ti.com
VOUT
C9
0.47µF
U2
SCL
D1
SDA
E1
EN
E2
CLK_32K
D3
INT
E3
E4
TRIG
ADDR_SEL0
ADDR_SEL1
C2
B2
VDD_LP5221
C4
C10
1µF
SCL
CFLY1P
CFLY1N
SDA
CFLY2P
CFLY2N
EN
CLK_32K
VOUT
INT
R
G
B
TRIG
ADDR_SEL0
ADDR_SEL1
GPO
GND
GND
VDD
B4
B3
A4
A3
C6
C8
0.47µF
A2
C1
B1
A1
1µF
D11
4
3
5
2
6
1
GND_RGB
D2
D4
C3
LP5521TM/NOPB
ASMT-YTC2-0AA02
Rgb
GND
GND
GND
D13
1
2
GND_W
White
D12
1
2
White
D10
1
2
White
R
G
B
GPO
Copyright © 2016, Texas Instruments Incorporated
Figure 9. LP5521 (Device 3)
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LP5521EV User Guide
Copyright © 2008–2016, Texas Instruments Incorporated
29
Evaluation Board Schematics
www.ti.com
VOUT
C4
0.47µF
U1
SCL
D1
SDA
E1
EN
E2
CLK_32K
D3
INT
E3
E4
TRIG
ADDR_SEL0
ADDR_SEL1
C2
B2
VDD_LP5221
C4
C5
1µF
SCL
CFLY1P
CFLY1N
SDA
CFLY2P
CFLY2N
EN
CLK_32K
VOUT
INT
R
G
B
TRIG
ADDR_SEL0
ADDR_SEL1
GPO
GND
GND
VDD
B4
B3
A4
A3
C2
C3
0.47µF
A2
C1
B1
A1
1µF
D7
4
3
5
2
6
1
GND_RGB
D2
D4
C3
LP5521TM/NOPB
ASMT-YTC2-0AA02
Rgb
GND
GND
GND
D9
1
2
GND_W
White
D8
1
2
White
D6
1
2
White
R
G
B
GPO
Copyright © 2016, Texas Instruments Incorporated
Figure 10. LP5521 (Device 4)
30
LP5521EV User Guide
SNVA241E – April 2008 – Revised September 2016
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PCB Layout
www.ti.com
10
PCB Layout
Figure 11. Top Overlay
Figure 12. Layer 1 (Top, Signal)
Figure 13. Layer 2 (GND)
Figure 14. Layer 4 (Power)
Figure 15. Layer 4 (Bottom, Signal)
SNVA241E – April 2008 – Revised September 2016
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Copyright © 2008–2016, Texas Instruments Incorporated
LP5521EV User Guide
31
Bill of Materials
11
www.ti.com
Bill of Materials
The following is the bill of materials for the LP5521TMEV:
DESIGNATOR
32
QUANTITY
VALUE
C1, C7, C15, C22, C25, C29
6
0.1uF
GRM188R71C104KA01D
C2, C5, C6, C10, C18, C23,
C30, C33
8
1uF
C1005X5R1A105K050BB
C3, C4, C8, C9, C20, C21,
C31, C32
8
0.47uF
C1005X5R1A474K050BB
C11, C13, C19, C28
4
0.01uF
C0603H103J3GACTU
C12, C16, C17, C26
4
1uF
C14
1
2.2uF
EMK212B7225KG-T
C24, C27
2
10pF
GRM1555C1H100FA01D
D1, D2, D3, D4, D5
5
Red
HSMC-C190
D6, D8, D9, D10, D12, D13,
D14, D16, D17, D18, D20, D21
12
White
D7, D11, D15, D19
4
Rgb
ASMT-YTC2-0AA02
R1, R2, R3, R4, R5
5
300
RC0603JR-07300RL
R6, R11
2
10k
RC0603JR-0710KL
R7, R9
2
1.5k
RC0603JR-071K5L
R8
1
10k
CRCW060310K0JNEA
R10
1
0
CRCW06030000Z0EA
S1
1
B3SL-1022P
U1, U2, U5, U6
4
LP5521TM/NOPB
U3
1
TPS73633DRBR
U4
1
TM4C123GH6PMTR
Y1
1
ABM3-16.000MHZ-D2Y-T
LP5521EV User Guide
PART NUMBER
GRM188R61A105KA61D
SML312WBCW1
SNVA241E – April 2008 – Revised September 2016
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Copyright © 2008–2016, Texas Instruments Incorporated
Revision History
www.ti.com
Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
DATE
REVISION
NOTES
September 2016
E
Complete re-write of user guide.
SNVA241E – April 2008 – Revised September 2016
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Copyright © 2008–2016, Texas Instruments Incorporated
Revision History
33
STANDARD TERMS AND CONDITIONS FOR EVALUATION MODULES
1.
Delivery: TI delivers TI evaluation boards, kits, or modules, including 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
and conditions set forth herein. Acceptance of the EVM is expressly subject to the following terms and conditions.
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 and conditions 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 and conditions 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 any defects that are 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. Moreover, TI shall not be liable for any defects that result from User's design, specifications or
instructions for such EVMs. Testing and other quality control techniques are used to the extent TI deems necessary or as
mandated by government requirements. TI does not test all parameters of each EVM.
2.3 If any EVM fails to conform to the warranty set forth above, TI's sole liability shall be at its option to repair or replace such EVM,
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.
3
Regulatory Notices:
3.1 United States
3.1.1
Notice applicable to EVMs not FCC-Approved:
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.
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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
Concerning EVMs Including Radio Transmitters:
This device complies with Industry Canada license-exempt RSS standard(s). 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.
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 by Radio Law of
Japan to follow the instructions below with respect to EVMs:
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.
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【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
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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.
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6.
Disclaimers:
6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY WRITTEN DESIGN MATERIALS PROVIDED WITH THE EVM (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 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 AND
CONDITIONS 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 MADE, CONCEIVED OR ACQUIRED PRIOR TO OR AFTER DELIVERY OF
THE EVM.
7.
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 AND CONDITIONS. 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.
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 ANDCONDITIONS OR THE USE OF THE EVMS PROVIDED HEREUNDER, 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 ONE YEAR AFTER THE RELATED CAUSE OF ACTION HAS OCCURRED.
8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY WARRANTY OR OTHER OBLIGATION
ARISING OUT OF OR IN CONNECTION WITH THESE TERMS AND CONDITIONS, OR ANY USE OF ANY TI EVM
PROVIDED HEREUNDER, EXCEED THE TOTAL AMOUNT PAID TO TI FOR THE PARTICULAR UNITS SOLD UNDER
THESE TERMS AND CONDITIONS WITH RESPECT TO WHICH LOSSES OR DAMAGES ARE CLAIMED. THE EXISTENCE
OF MORE THAN ONE CLAIM AGAINST THE PARTICULAR UNITS SOLD TO USER UNDER THESE TERMS AND
CONDITIONS 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,
without reference to conflict-of-laws principles. User agrees that non-exclusive jurisdiction for any dispute arising out of or relating to
these terms and conditions lies within courts located in the State of Texas and consents to venue in Dallas County, Texas.
Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief
in any United States or foreign court.
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2016, Texas Instruments Incorporated
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Products
Applications
Audio
www.ti.com/audio
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Amplifiers
amplifier.ti.com
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Data Converters
dataconverter.ti.com
Computers and Peripherals
www.ti.com/computers
DLP® Products
www.dlp.com
Consumer Electronics
www.ti.com/consumer-apps
DSP
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www.ti.com/energy
Clocks and Timers
www.ti.com/clocks
Industrial
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Interface
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Medical
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Logic
logic.ti.com
Security
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www.ti.com/space-avionics-defense
Microcontrollers
microcontroller.ti.com
Video and Imaging
www.ti.com/video
RFID
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OMAP Applications Processors
www.ti.com/omap
TI E2E Community
e2e.ti.com
Wireless Connectivity
www.ti.com/wirelessconnectivity
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