Texas Instruments UCC28750EVM-071 User manual

EVM User's Guide: UCC28750EVM-071 UCC287502
Using the UCC28750EVM-071 60-W AC to DC Converter
Description
The UCC28750EVM-071 is a 60-W evaluation module
(EVM) for evaluating an off-line power AC to
DC flyback converter. The UCC28750EVM-071 is
intended for evaluation purposes and is not intended
to be an end product. The UCC28750EVM-071
converters 85-VRMS to 265-VRMS input voltage down
to 24-VDC, capable of delivering 60 W of output
power. This evaluation module uses the UCC287502
Constant-Voltage Flyback Controller Using Opto-
Coupled Feed-Back in a 60 W converter to provide
2.5 A of constant charge current. The input accepts
a voltge range of 85 VAC to 265 VAC. Depending
upon the operating conditions, the control law
algorithm modulates the switching frequency or the
peak primary current to satisfy the power transfer
requirements. The programmable slope compensation
enables both CCM and DCM operation. Power-boost
mode provides additional power for momentary peak
demand.
Get Started
1. Read and study this user's guide completely
before evaluating
2. Order the UCC28750EVM-071 for evaluation if
step 1 and 2 is met
3. Setup and test the UCC28750EVM-071 per user's
guide instructions
Features
• Regulated 24 V ,+/-5%, 60 W Ouput
• Wide Input Range 85 to 265-V RMS
• Max Load Efficency > 90%
Applications
• Isolated offline AC/DC power supply
•Industrial AC/DC for grid infrastructure, appliances
• Audio, printer, TV, set-top box offline AC/DC
•Battery charger
•Merchant DIN rail power supply, Server PSU
•Electricity meter
•String inverter, Micro inverter
•Small home appliances, Major appliances, AC
indoor/outdoor unit
UCC28750EVM-071
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1 Evaluation Module Overview
1.1 Introduction
The UCC28750EVM-071 has frequency foldback and burst mode enable higher efficiency and standby
performance at light load. Opto-coupled feed-back maintains a tightly regulated output with fast dynamic
response to load transients. The controller further enhances the efficient operation with valley switching. The
UCC287502 also includes a omprehensive protection features including UVLO/OVLO, OTP, OPP, OVP, OCP,
brown-out detection, and options to latch and auto-restart. The UCC287502 also uses dithering of the gate drive
helps to ease EMI compliance. This user’s guide provides the schematic, component list, assembly drawing, art
work, and test set up necessary to evaluate the UCC287502 in a typical off-line converter application.
1.2 Kit Contents
• An Evaluation Module (EVM) TI part number UCC28750EVM-071
• EVM Disclaimer and Read Me material
1.3 Specifications
Table 1-1. UCC28750EVM-071 Electrical Performance Specifications
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
INPUT CHARACTERISTICS
VIN Input voltage (RMS) 85 115/230 265 V
fLINE Line frequency 47 50/60 63 Hz
PSTBY No load input power VIN = 115 V / 230 V RMS, IOUT = 0 A 750 mW
OUTPUT CHARACTERISTICS
VOUT Output voltage VIN = 85 - 265 V AC, IOUT = 0 A-2.5 A 22.8 24 25.2 V
VOUT Output ripple voltage VIN = nom, IOUT = 0-2.5A, 500 mVpp
IOUT Output current VIN = min to max 0.0 2.5 A
SYSTEMS CHARACTERISTICS
Average
efficiency
25%, 50%, 75%, 100% load
average at nominal input
voltages
115-V / 230-V RMS input 89%
Operating temperature range VIN = min to max, IOUT = min to max 25 °C
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2 Hardware
2.1 Test Points
Table 2-1. Test Point Functions
TEST POINTS DESCRIPTION
TP1 AC LINE
TP2 AC Neutral
TP3 Capacitor Voltage C9..C12
TP4 Output Supply
TP5 Secondary Switch Node
TP6 Output Return
TP7 AC Neutral
TP8 Primary Switch Node
TP9 Output Return
TP10 UCC287502 Supply Voltage
TP11 Feedback Test Point
TP12 UCC287502 DRV Pin
TP13 Q1 Gate
TP14 Feedback Test Point
TP15 UCC287502 CS Pin
TP16 UCC287502 FB Pin
TP17 UCC287502 OPP Pin
TP18 Primary Ground
2.2 Test Setup
2.2.1 Test Setup Requirements
Safety: This evaluation module is not encapsulated and there are voltages that are much greater than 50 VDC.
WARNING
If you are not trained in the proper safety of handling and testing power electronics please do not
test this evaluation module.
Voltage Source: Isolated AC source or variable AC transformer capable of 265 VAC cable of handling 80 W
Voltmeter: Digital voltage meter
Power Analyzer: Capable of measuring 1 mW to 10 W of input power and capable of handling 265-V RMS input
voltage. Please read the power analyzer’s user manual for proper setup.
Oscilloscope:
• 4 Channel 100 MHz.
• Probes capable of handling 600 V.
Output Load: Resistive or electronic load capable handling 60 W at 24 V.
Recommended Wire Gauge: Insulated 22 AWG.
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2.2.2 Test Setup Diagram
AC Line
AC Neutral
VOUT +
VOUT -
Isolated
Variable AC
Source
Current
Measurement
Voltage
Measurement
Power Analyzer
Load
UCC28750EVM-071
TP1
TP7
TP4
TP9
Volt Meter
Oscilloscope
Scope
Probe
J1 Pin1
J1 Pin3
J2 Pin1
J2 Pin2
Figure 2-1. UCC28750EVM-001 Test Setup Diagram
2.3 Best Practices
CAUTION
!
CAUTION
This EVM has voltages greater than 50 V DC and 50 V AC when power is applied to the input.
Caution must be taken when evaluating the EVM.
CAUTION
This EVM has components that reach tempataures of greater than 55℃. Caution must be taken
when evaluating the EVM.
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2.3.1 General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
WARNING
Always follow TI’s setup and application instructions, including use of all interface components within the
recommended electrical rated voltage and power limits. Always use electrical safety precautions to help
verify your personal safety and those working around you. Contact TI's Product Information Center http://
support/ti./com for further information.
Save all warnings and instructions for future reference.
WARNING
Failure to follow warnings and instructions can result in personal injury, property damage or death
due to electrical shock and burn hazards.
The term TI HV EVM refers to an electronic device typically provided as an open framed, unenclosed printed
circuit board assembly. It is intended strictly for use in development laboratory environments, solely for qualified
professional users having training, expertise and knowledge of electrical safety risks in development and
application of high voltage electrical circuits. Any other use and/or application are strictly prohibited by Texas
Instruments. If you are not suitably qualified, then immediately stop from further use of the HV EVM.
1. Work Area Safety
a. Keep work area clean and orderly.
b. Qualified observers must be present anytime circuits are energized.
c. Effective barriers and signage must be present in the area where the TI HV EVM and the interface
electronics are energized, indicating operation of accessible high voltages can be present, for the
purpose of protecting inadvertent access.
d. All interface circuits, power supplies, evaluation modules, instruments, meters, scopes and other related
apparatus used in a development environment exceeding 50Vrms/75VDC must be electrically located
within a protected Emergency Power Off EPO protected power strip.
e. Use stable and nonconductive work surface.
f. Use adequately insulated clamps and wires to attach measurement probes and instruments. No
freehand testing whenever possible.
2. Electrical Safety
As a precautionary measure, it is always a good engineering practice to assume that the entire EVM can
have fully accessible and active high voltages.
a. De-energize the TI HV EVM and all the inputs, outputs and electrical loads before performing any
electrical or other diagnostic measurements. Revalidate that TI HV EVM power has been safely de-
energized.
b. With the EVM confirmed de-energized, proceed with required electrical circuit configurations, wiring,
measurement equipment connection, and other application needs, while still assuming the EVM circuit
and measuring instruments are electrically live.
c. After EVM readiness is complete, energize the EVM as intended.
WARNING
While the EVM is energized, never touch the EVM or the electrical circuits, as they can be at
high voltages capable of causing electrical shock hazard.
3. Personal Safety
a. Wear personal protective equipment (for example, latex gloves or safety glasses with side shields) or
protect EVM in an adequate lucent plastic box with interlocks to protect from accidental touch.
Limitation for safe use:
EVMs are not to be used as all or part of a production unit.
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3 Implementation Results
3.1 Performance Data and Typical Characteristic Curves
3.1.1 Efficiency
Table 3-1. Efficiency Test Data
VIN RMS VOUT IOUT PIN POUT EFFICIENCY
85 24.2 0.00 0.059 0 NA
85 24.145 0.055 1.573 1.3273 84.38
85 24.143 0.197 5.353 4.763 88.98
85 24.137 0.46 12.278 11.104 90.43
85 24.132 0.696 18.566 16.813 90.55
85 24.13 0.968 25.8 23.357 90.53
85 24.127 1.2119 32.462 29.239 90.07
85 24.125 1.451 39 35 89.74
85 24.122 1.6398 44.17 39.554 89.54
85 24.12 1.887 50.88 45.53 89.48
85 24.113 2.231 60.4 53.83 89.12
85 24.1 2.726 73.9 65 88.97
115 24.21 0.000 0.065 0.000 NA
115 24.145 0.055 1.57 1.328 84.58
115 24.136 0.196 5.35 4.747 88.73
115 24.131 0.46 12.26 11.09 90.45
115 24.126 0.698 18.56 16.85 90.78
115 24.122 0.972 25.76 23.45 91.03
115 24.120 1.211 32.09 29.21 91.02
115 24.115 1.449 38.41 34.96 91.02
115 24.113 1.74] 46.25 42.02 90.85
115 24.112 1.88 49.97 45.35 90.75
115 24.110 2.228 59.2 53.73 90.76
115 24.108 2.72 72.6 65 89.53
230 24.227 0.000 0.102 0.000 NA
230 24.147 0.055 1.6628 1.328 80
230 24.138 0.197 5.512 4.759 86.34
230 24.135 0.46 12.425 11.106 89.38
230 24.135 0.696 18.644 16.812 90.17
230 24.133 0.969 25.7 23.379 90.96
230 24.132 1.2113 32.1 29.219 91.02
230 24.128 1.4512 38.5 35.017 90.95
230 24.123 1.6398 43.418 39.548 91.08
230 24.121 1.8872 49.95 45.51 91.11
230 24.118 2.23 59 53.83 91.23
230 24.115 2.7287 72.33 65.813 90.99
265 24.32 0 0.151 0 NA
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Table 3-1. Efficiency Test Data (continued)
VIN RMS VOUT IOUT PIN POUT EFFICIENCY
265 24.144 0.055 1.7 1.33 78.2
265 24.134 0.197 5.5925 4.7635 85.17
265 24.132 0.46 12.56 11.108 88.43
265 24.13 0.697 18.76 16.83 89.7
265 24.128 0.968 25.903 23.348 90.13
265 24.126 1.211 32.224 29.21 90.64
265 24.125 1.4513 38.53 35.018 90.88
265 24.122 1.64 43.54 39.55 90.83
265 24.12 1.8872 50.06 45.52 90.91
265 24.118 2.231 59.13 53.813 91
265 24.115 2.72 72.09 65.63 91.03
Output Power (W)
Efficiency (%)
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70
0.78
0.8
0.82
0.84
0.86
0.88
0.9
0.92
85 Vrms
115 Vrms
230 Vrms
265 Vrms
Figure 3-1. Efficiency
Note
The inductor L1, which is mounted on the PCB and shown in BOM needs to be removed and shorted
out to get best efficiency results.
Standby Power
AC Input Voltage (Volts) Power (mW)
85 59
115 65
230 102
265 151
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3.1.2 Startup
CH1 =VBULK , CH2 = VCC, CH3 = VGATE, CH4 = VOUT
Figure 3-2. Start-up Waveforms at 85Vac and No
Load
Figure 3-3. Start-up Waveforms at 85Vac and Full
Load
Figure 3-4. Start-up Waveforms at 115Vac and No
Load
Figure 3-5. Start-up Waveforms at 115Vac and Full
Load
Figure 3-6. Start-up Waveforms at 230Vac and No
Load
Figure 3-7. Start-up Waveforms at 230Vac and Full
Load
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Figure 3-8. Start-up Waveforms at 265Vac and No
Load
Figure 3-9. Start-up Waveforms at 265Vac and Full
Load
3.1.3 Load Transients
CH1 = VOUT, CH4 = IOUT
Load = 0.100A to 2 .5A, 1 kHz, 50% Duty Cycle
VIN = 85 VAC
Figure 3-10. Load Transients at 85Vac
VIN = 115 VAC
Figure 3-11. Load Transients at 115Vac
VIN = 230 VAC
Figure 3-12. Load Transients at 230Vac
VIN = 265 VAC
Figure 3-13. Load Transients at 265Vac
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3.1.4 Output Ripple Voltage at Full Load
CH1 = VOUT, CH2 = VAUX, CH3 = VCS
VIN = 85 VAC, RLOAD = 9.6 ohm
Figure 3-14. Voltage Ripple at 85Vac and Full Load
VIN = 265 VAC, RLOAD = 9.6 ohm
Figure 3-15. Voltage Ripple at 265Vac and Full
Load
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3.1.5 Q1 Drain Voltage Evaluation
CH1=VQ1d, CH3 = VGATE, CH4 = VOUT
Figure 3-16. Steady State Waveform at 85Vac
Figure 3-17. Steady State Waveform at 85Vac
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4 Hardware Design Files
4.1 Schematic
GND
GND
1
3 2
Q1
IPP65R190C7
GND
GND
1
2 3
4
1mH
L2
1
23
4
1kV
D1
330pF
C24
1
2
3
J1
TP1
TP7
Primary_GND
Vout
FB
10
9
8
7
1
2
3
4
5
6
43:10:6
T1
FB
Aux
DRV
Aux
Vin
VDD
VDD
TP2
TP4
TP9
TP6
TP18
TP10
CGND
GND
Aux
Primary_GND
CS
CS
FLT
FLT
22.0
R9
DRV
220
R18
Primary_GND
TP3
TP12
TP15
TP17
TP16
Primary_GND
C25
4.7uF
C10
4.7uF
C9
4.7uF
C14
GND
0.1uF
C1
3
2 1
U2
TL431AIDBZR
1nF
C23
680pF
C8
1nF
C6
F1
39213150000
0.47uF
C3
0.47uF
C4
0.47uF
C5
D7
1.00k
R13
0.1uF
C17
1
2
H2
7173DG
Primary_GND
TP13
13
NC 2
200V
D5
13 2
NC
200V
D6
100
R5
470uF
C11 470uF C12 470uF C13
1
2
4
3
U1
TCMT1107
TP11
TP14
51.0
R8
TP5
TP8
1
2
H1
7173DG
1000pF
C16
2200pF
C15
2200pF
C7
Primary_GNDPrimary_GND
Primary_GND
Primary_GND
Primary_GND
Primary_GND
Primary_GND
Primary_GND
1uH
L3
744772010
600V
D3
86.6k
R14
10.0k
R19
10.0k
R11
R20
Vin
20.5k
R21
22.1
R6
R1
511k
133k
R15
680pF
C20
56pF
C22
5VDD
CS 4
6
DRV
FB
2
3FLT
1
UCC287502DBV
GND
U3
200V
D2
+
150uF
450V
C2
No designated component value means the device is not populated
R16 and R17 effective is around 0.2875 ohms
0.56
R16
0.56
R17
50V
22pF
C21
0
R7
+
35V
100µF
C19
50V
4.7uF
C18
13
2
NC
200V
D8
2 1
D4
Do not populate (DNP) R20, R7 & C25 (Variant - 001)
MMSZ4707T1G
10.0k
R10
2.00M
R2
2.00M
R3
2.00M
R4
2.49k
R12
GATE
1
2
J2
Note: On actual hardware (pcb) L1 needs to be shorted with a jumper for best efficiency results
Figure 4-1. UCC28750EVM-071 Schematic
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4.2 EVM Assembly and Layout
Figure 4-2. EVM Assembly (Top View)
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Figure 4-3. EVM Assembly/Layout (Bottom View)
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4.3 Bill of Materials
UCC28750EVM-071 bill of materials as shown in Table 4-1.
Table 4-1. UCC28750EVM-001 Bill of Materials
QTY DES DESCRIPTION PART NUMBER MANUFACTURER
1 C1 Cap Film Suppression X2 0.1uF 560VDC/275VAC PP 10%
(18 X 5 X 11mm) Radial Plastic Rectangular Can 15 mm
110C Bulk
R46KI3100JBM1K Kemet
1 C2 150 µF 450 V Aluminum Electrolytic Capacitors Radial, Can -
Snap-In 5000 Hrs @ 105°C
450VXH150MEFCSN25X
30
Rubycon
3 C3, C4, C5 CAP, CERM, 0.47 uF, 500 V, +/- 10%, X7R, 1812 1812Y5000474KXTWS2 Knowles Capacitors
1 C6 CAP, CERM, 1000 pF, 250 V, +/- 10%, X7R, 0603 GRM188R72E102KW07D MuRata
2 C7, C15 Cap Ceramic Disc 2200 pF 20% 250VAC Thru-Hole
9.0x4.0x10.0 Ammo pack
DE1E3RA222MN4AN01F Murata
1 C8 680 pF ±5% 200 V Ceramic Capacitor C0G, NP0 1210 (3225
Metric)
12102A681JAT2A KYOCERA AVX
3 C9, C10,
C14
Cap Ceramic 4.7uF 35 V X5R ±10% Pad SMD 0603 +85°C
T/R
CL10A475KL8NRNC Samsung
3 C12, C13 CAP, AL, 470 uF, 35 V, +/- 20%, TH EKZE350ELL471MJ20S Chemi-Con
1 C16 CAP, CERM, 1000 pF, V, +/- 20%, Y5V, D7xT5mm C901U102MYVDBA7317 Kemet
1 C17 CAP, CERM, 0.1 uF, 50 V,+/- 10%, X7R, 0402 C1005X7R1H104K050BE TDK
1 C18 CAP, CERM, 4.7 uF, 50 V, +/- 10%, X7S, 0805 GRM21BC71H475KE11K MuRata
1 C19 100 µF 35 V Aluminum Electrolytic Capacitors Radial, Can
5000 Hrs @ 105°C
860040573004 Wurth Electronics
1 C20 CAP, CERM, 680 pF, 50 V, +/- 5%, C0G/NP0, 0603 GRM1885C1H681JA01D MuRata
1 C21 CAP, CERM, 22 pF, 50 V, +/- 5%, C0G/NP0, 0603 GRM1885C1H220JA01D MuRata
1 C22 CAP, CERM, 56 pF, 50 V, +/- 5%, C0G/NP0, 0603 06035A560JAT2A AVX
1 C23 CAP, CERM, 1000 pF, 50 V, +/- 10%, X7R, 0603 C0603X102K5RACTU KEMET
1 C24 CAP, CERM, 330 pF, 50 V, +/- 5%, C0G/NP0, 0603 C0603C331J5GACTU KEMET
1 D1 Bridge Rectifier Single Phase Standard 1 kV Through Hole
GBU
GBU4M-E3/51 Vishay Semiconductor
1 D2 Diode Schottky 200 V 6 A ITO220AC MBR6200F_T0_00001 Panjit
1 D3 Diode, Ultrafast, 600 V, 1 A, SMB MURS160-13-F Diodes Inc.
1 D4 Zener Diode 20 V 500 mW ±5% Surface Mount SOD-123 MMSZ4707T1G Onsemi
2 D5, D6,
D8
Diode Standard 200 V 200 mA Surface Mount SOT-23-3
(TO-236)
BAS20LT3G On Semiconductor
1 F1 Fuse, 3.15 A, 250VAC/VDC, TH 39213150000 Littelfuse
2 H1, H2 Heat Sink, TO-220 Vertical 7173DG Aavid
4 H3, H4,
H5, H6
Machine Screw, Round, #4-40 x 1/4, Nylon, Philips panhead NY PMS 440 0025 PH B&F Fastener Supply
4 H7, H8,
H9, H10
Standoff, Hex, 0.5"L #4-40 Nylon 1902C Keystone
1 J1 Header, 312mil, 3x1, Tin, TH 1-1318301-3 TE Connectivity
1 J2 Terminal Block, 5.08 mm, 2x1, TH 1715721 Phoenix Contact
1 L1 22 µH Semi-Shielded Drum Core, Wirewound Inductor 1.8 A
89mOhm Nonstandard
74404064220 Wurth Electronics
1 L2 Coupled inductor, 1 mH, 2 A, 0.045 ohm, TH 744821201 Wurth Elektronik
1 L3 1 µH Unshielded Drum Core, Wirewound Inductor 7.5 A
10mOhm Max Radial, Vertical Cylinder (Open)
744772010 Wurth Electronics
2 MP1, MP2 Mounting Kit For TO-220 Heat Sinks 4880SG Aavid Thermalloy
1 Q1 MOSFET, N-CH, 700 V, 13 A, TO-220AB IPP65R190C7 Infineon Technologies
1 R1 RES, 511 k, 1%, 0.125 W, AEC-Q200 Grade 0, 0805 ERJ-6ENF5113V Panasonic
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Table 4-1. UCC28750EVM-001 Bill of Materials (continued)
QTY DES DESCRIPTION PART NUMBER MANUFACTURER
3 R2, R3, R4 RES, 2.00 M, 1%, 0.25 W, 1206 RC1206FR-072ML Yageo America
1 R5 100 Ohms ±0.1% 0.2W, 1/5W Chip Resistor 0805
(2012 Metric) Anti-Sulfur, Automotive AEC-Q200, Moisture
Resistant
TNPW0805100RBYEN Vishay
1 R6 RES, 22.1, 1%, 0.5 W, 1210 RC1210FR-0722R1L Yageo
1 R7 RES, 0, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 RMCF0603ZT0R00 Stackpole Electronics
Inc
1R8 RES, 51.0, 1%, 0.25 W, 1206 RC1206FR-0751RL Yageo America
1 R9 RES, 22.0, 1%, 0.1 W, 0603 RC0603FR-0722RL Yageo
1 R10 RES, 10.0 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603 RMCF0603FT10K0 Stackpole Electronics
Inc
2 R11, R19 RES, 10.0 k, 1%, 0.25 W, 1206 RC1206FR-0710KL Yageo America
1 R12 RES, 2.49 k, 1%, 0.1 W, 0603 RC0603FR-072K49L Yageo
1 R13 RES, 1.00 k, 0.1%, 0.1 W, 0603 RT0603BRD071KL Yageo America
1 R14 RES, 86.6 k, 0.1%, 0.125 W, 0805 RT0805BRD0786K6L Yageo America
1 R15 RES, 133 k, 1%, 0.25 W, 1206 RC1206FR-07133KL Yageo America
2 R16, R17 RES, 0.56, 1%, 0.25 W, 1206 ERJ-8RQFR56V Panasonic
1 R18 RES, 220, 1%, 0.1 W, 0603 RC0603FR-07220RL Yageo
1 R21 RES, 20.5 k, 1%, 0.125 W, AEC-Q200 Grade 0, 0805 ERJ-6ENF2052V Panasonic
1 T1 CCM Flyback Transformer for UCC28750EVM-071 RLTI-1450 Renco Electronics
13 TP1, TP2,
TP3, TP4,
TP5, TP7,
TP8,
TP10,
TP12,
TP13,
TP15,
TP16,
TP17
Test Point, Compact, Red, TH 5005 Keystone Electronics
3 TP6, TP9,
TP18
Test Point, Compact, Black, TH 5006 Keystone Electronics
2 TP11,
TP14
Test Point, Compact, White, TH 5007 Keystone Electronics
1 U1 Optocoupler, 3.75 kV, 80-160% CTR, SMT TCMT1107 Vishay-Semiconductor
1 U2 Adjustable Precision Shunt Regulator, 34 ppm / degC, 100
mA, -40 to 85 degC, 3-pin SOT-23 (DBZ), Green (RoHS & no
Sb/Br)
TL431AIDBZR Texas Instruments
1 U3 Continuous Conduction Mode (CCM) Secondary Side
Regulated (SSR) Current-Mode Offline Flyback Controller
UCC287502DBV Texas Instruments
5 Additional Information
5.1 Trademarks
All trademarks are the property of their respective owners.
Additional Information www.ti.com
16 Using the UCC28750EVM-071 60-W AC to DC Converter SLUUCW5 – NOVEMBER 2023
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Copyright © 2023 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.
2Limited 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.

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2
3Regulatory 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.

www.ti.com
3
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。
https://www.ti.com/ja-jp/legal/notice-for-evaluation-kits-delivered-in-japan.html
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. 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,
2. Use EVMs only after User obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to
EVMs, or
3. 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. 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。
2. 実験局の免許を取得後ご使用いただく。
3. 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。https://www.ti.com/ja-jp/legal/notice-for-evaluation-kits-for-power-line-communication.html
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.

www.ti.com
4
4EVM 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. 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.