Texas Instruments UCC25230EVM-662 User manual

Using the UCC25230EVM-662
User's Guide
Literature Number: SLUU863
February 2012

User's Guide
SLUU863–February 2012
Biased Half-Bridge Converter with UCC28250
Secondary-Side Control for 48-V Telecom Applications
1 Introduction
This EVM is used to evaluate bias power supply with UCC25230 used in the UCC28250, based on a
secondary-side controlled, half-bridge DC-to-DC converter. The UCC25230EVM-662 is actually a
combination of two released EVMs, UCC28250EVM-564 and UCC25230EVM-754. The
UCC28250EVM-564 is an EVM of secondary-side controlled symmetrical half-bridge DC-to-DC converter.
The UCC25230EVM-754 is used to bias the UCC28250EVM-564 and allow for stand-alone operation in
the UCC28250EVM-564. The targeted application is telecom module design with nominal 48-V input.
UCC28250 is a PWM controller that can be used for primary-side control or secondary-side control. In this
EVM, the UCC28250 is placed at the secondary side to make secondary-side control. The UCC25230 is a
highly integrated PWM controller operating as an isolated Forward-Flyback, or Flybuck™controller. It has
integrated high-side and low-side power switches and a control circuit with all the key converter functions
included.
2 Description
The EVM is a 100-W symmetrical half-bridge DC-to-DC converter that converts 36 V to 72 V DC to a
regulated output voltage of 3.3 V and a maximum of 30-A load current. The EVM is designed in
stand-alone operation without additional external auxiliary power sources.
2.1 Typical Applications
•48-V Telecom Modular Applications With Secondary-Side Control
•Server Systems
•Datacom
•DSP’s, ASIC’s, and FPGA’s
2.2 Features
•Start Up Directly from Telecom Input Voltage 36 V to 72 V DC
•Regulated Output Voltage 3.3 V (with maximum 30-A load current)
•Smooth and Monotonic Output Voltage Turn On (with Up to 90% pre-biased output voltage)
•Output Voltage Regulation (from no load to full load, and from low line to high line)
•Primary-Side Enable ON/OFF Function and Manual Switch for Line-Under Voltage On or Off
•Secondary-Side Control
•Control-Driven Synchronous Rectifier
•Non-Latching Output Over-Voltage Protection and Hiccup Over-Current Protection
•Telecom Isolation from Primary-to-Secondary 1500 VDC
•Test Points to Facilitate the Device Evaluation
2Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V SLUU863–February 2012
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www.ti.com Electrical Performance Specifications
3 Electrical Performance Specifications
Table 1. UCC25230EVM-662 Electrical Performance Specifications
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Input Characteristics
Voltage range 36 48 72 V
Maximum input current VIN = 36 V and IOUT = 30 A 3.5 A
No load input current VIN = 72 V 90 mA
Output Characteristics
Output voltage, VOUT Output current = 0 A 3.25 3.30 3.35 V
Output load current, IOUT 30 A
Output voltage ripple IOUT = 30A 50 mVpp
Output over current inception 32 A
point
Systems Characteristics
Switching frequency 200 kHz
IC clock frequency 400
Peak efficiency 91%
Full load efficiency 90%
Operating temperature Min 200 LFM forced air flow 25 ºC
3
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+
Schematic www.ti.com
4 Schematic
Figure 1. UCC25230EVM-662 Schematic
4Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V SLUU863–February 2012
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A
B
+
_
Load
13.3V/
35A V2
+
FAN
DC
Sourc
e
_
V1
+
_
A1
J2
S1
J1 TP1 TP2
TP9 TP6
TP3
TP12
TP13
TP7 TP4
TP11
TP5
TP8
TP10
www.ti.com Test Setup
5 Test Setup
5.1 Test Equipment
Voltage Source: HP 6015A DC power supply, or equivalent to provide 36 VDC to 72 VDC, and minimum
3.5 A.
Multimeters: Fluke 45 dual display multimeter, or equivalent.
Output Load: HPA 6060A DC electronic load, or equivalent capable of 3.3 V and 30 A.
Oscilloscope: A 20-MHz or equivalent analog or digital oscilloscope.
Recommended Wire Gauge: AWG #18 for input voltage connection. AWG #16 for output load
connection.
Ventilation Fan: 200 LFM minimum compatible.
5.2 Recommended Test Setup
Figure 2. UCC25230EVM-662 Recommended Test Set Up
5
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Test Setup www.ti.com
5.3 List of Test Points
Table 2. Test Point Functions
TEST POINTS NAME DESCRIPTION
TP1 PGND Input voltage negative test point, for efficiency test
TP2 Vin+ Input voltage positive test point, for efficiency test
TP3 Bias_P1 Primary bias, 9V.
TP4 VOUT+ Output voltage positive test point for efficiency
TP5 VOUT- Output voltage negative test point for efficiency
TP6 Loop+ Feedback loop injection for UCC25230
TP7 Loop+ Feedback loop injection for UCC28250
TP8 Loop- Feedback loop injection for UCC28250
TP9 Loop- Primary side signal ground
TP10 Prebias+ Prebias output positive input
TP11 Vo_Ripple Output voltage ripple test
TP12 Bias_P Primary bias, 9 V
TP13 Bias_S Secondary bias, 8 V
J1 INPUT Input voltage terminals
J2 OUTPUT Output voltage terminals
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www.ti.com Test Procedure
6 Test Procedure
Set up the EVM based on Figure 2.
CAUTION
High voltage and high temperature present when the EVM is in operation!
6.1 Line/Load Regulation and Efficiency Measurement Procedure
1. Connect the ammeter A1 (0 A to 10 A range) between DC Source and J1 as shown in Figure 2.
2. Prior to connecting the DC source, it is advisable to limit the source current to 4 A maximum. Make
sure the DC source is initially set to 0 V and connected to J1 and A1 as shown in Figure 2.
3. Connect voltmeter, V1 across the DC source as shown in Figure 2.
4. Connect Load1 to J2 as shown in Figure 2. Set Load1 to constant current mode to sink 0 ADC before
the input voltage on J1 is applied.
5. Connect voltmeter, V2 to J2 as shown in Figure 2.
6. Turn on the ventilation fan making sure to blow air directly on the EVM.
7. Set switch S1 to position B.
8. Increase the DC source voltage from 0 V to 36.0 VDC.
9. Measure VOUT (V2), IOUT, VIN (V1) and IIN (A1).
10. Vary LOAD1 from 0 A to a higher value, up to 30 ADC.
11. Increase input voltage to a different value, up to 72 V, and repeat 9 and 10.
6.2 Equipment Shutdown
1. Decrease Load-1 to 0 A.
2. Decrease VIN to 0 V.
3. Shut down VIN and the fan.
4. Shut down the load.
7
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40
45
50
55
60
65
70
75
80
85
90
95
100
0 5 10 15 20 25 30
IOUT - Amps
Efficiency - %
36.0V
48.0V
72.0V
3.050
3.100
3.150
3.200
3.250
3.300
3.350
0 5 10 15 20 25 30
IOUT - Amps
VOUT - V
36.0V
48.0V
72.0V
Performance Data and Typical Characteristic Curves www.ti.com
7 Performance Data and Typical Characteristic Curves
Figure 3 through Figure 11 present typical performance curves for UCC25230EVM-662.
7.1 Efficiency
Figure 3. UCC25230EVM-662 Efficiency
7.2 Load Regulation
Figure 4. UCC25230EVM-662 Load Regulation
8Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V SLUU863–February 2012
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-50.00
-40.00
-30.00
-20.00
-10.00
0.00
10.00
20.00
30.00
40.00
50.00
0.1 1.0 10.0 100.0
F - Frequency - kHz
Gain - dB
-150.00
-120.00
-90.00
-60.00
-30.00
0.00
30.00
60.00
90.00
120.00
150.00
Gain Phase
www.ti.com Performance Data and Typical Characteristic Curves
7.3 Bode Plots
Figure 5. UCC25230EVM-662 Feedback Loop Bode Plots
(VIN = 48 V, IO= 15 A)
9
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Performance Data and Typical Characteristic Curves www.ti.com
7.4 Turn-On Waveform
Figure 6. Output Voltage Turn On
(VIN = 48 V, IO= 15 A)
7.5 Turn-on Waveform with Pre-bias Output Voltage
Figure 7. Output Voltage Turn on with Pre bias.
(VIN = 48 V, IO= 0 A, Pre bias = 1.5 V)
10 Biased Half-Bridge Converter with UCC28250 Secondary-Side Control for 48-V SLUU863–February 2012
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www.ti.com Performance Data and Typical Characteristic Curves
7.6 Turn-On Waveform with Pre-bias Output Voltage
Figure 8. Output Voltage Turn On with Pre bias.
(VIN = 48 V, IO= 0 A, Pre bias = 3.0 V)
7.7 Turn-On Waveform with Pre-biased Output Voltage
Figure 9. Output Voltage Turn On with Pre bias
(VIN = 48 V, IO= 0 A, Pre bias = 0 V)
11
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Performance Data and Typical Characteristic Curves www.ti.com
7.8 Turn-Off Waveform
Figure 10. Turn-Off Waveform
(VIN = 48 V, IO= 15 A)
7.9 Output Ripple
Figure 11. Output Ripple
(VIN = 48 V, IO= 15 A, without external capacitance)
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www.ti.com EVM Assembly Drawing and PCB layout
8 EVM Assembly Drawing and PCB layout
Figure 12 through Figure 17 show the design of the UCC25230EVM-754 printed circuit board. PCB
dimensions: L x W = 4.2 inch x 2.3 inch, PCB material: FR406 or compatible, four layers and 2-ounce
copper on each layer.
Figure 12. UCC25230EVM-662 Top Layer Assembly Drawing (top view)
Figure 13. UCC25230EVM-662 Bottom Assembly Drawing (Bottom view)
13
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EVM Assembly Drawing and PCB layout www.ti.com
Figure 14. UCC25230EVM-662 Top Copper (top view)
Figure 15. UCC25230EVM-662 Internal Layer 1 (top view)
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www.ti.com EVM Assembly Drawing and PCB layout
Figure 16. UCC25230EVM-662 Internal Layer 2 (top view)
Figure 17. UCC25230EVM-662 Bottom Copper (top view)
15
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List of Materials www.ti.com
9 List of Materials
The EVM components list according to the schematic shown in Figure 1
Table 3. UCC25230EVM-662 List of Materials
QTY REF DES DESCRIPTION PART NUMBER MFR
4 C1, C35, C41, C42 Capacitor, ceramic, 16 V, X7R, ±10%, 1 µF, 0603 Std Std
3 C10, C37, C39 Capacitor, ceramic, 50 V, NP0, ±10%, 100 pF, 0603 Std Std
3 C11, C29, C30 Capacitor, ceramic, 50 V, X7R, ±10%, 2.2 nF, 0603 Std Std
2 C14, C16 Capacitor, ceramic, 50 V, NP0, ±5%, 120 pF, 0603 Std Std
4 C2, C18, C19, C23 Capacitor, ceramic, 6.3 V, X5R, ±10%, 100 µF, 1812 Std Std
1 C20 Capacitor, ceramic, 100 V, X7R, ±10%, 1 µF, 1206 Std std
1 C22 Capacitor, ceramic, 2 kV, X7R, ±10%, 1000 pF, 1808 Std Std
1 C28 Capacitor, ceramic, 50 V, X7R, ±10%, 470 pF, 0603 Std Std
3 C3, C33, C36 Capacitor, ceramic, 16 V, X5R, ±10%, 4.7 µF, 0805 Std Std
1 C32 Capacitor, aluminum, 25 V, ±20%, 470 µF, 0.315 inch UVZ1E471MPD Nichicon
1 C34 Capacitor, ceramic, 16 V, X7R, ±10%, 0.1 µF, 0603 Std Std
1 C38 Capacitor, ceramic, 16 V, X5R, ±10%, 1 µF, 0805 Std Std
3 C4, C6, C9 Capacitor, ceramic, 50 V, X5R, ±10%, 1.0 µF, 0603 Std Std
8 C5, C17, C21, C24, Capacitor, ceramic, 100 V, X7R, ±10%, 2.2 µF, 1210 Std Std
C25, C31, C44, C45
1 C7 Capacitor, ceramic, 50 V, X7R, ±10%, 680 pF, 0603 Std Std
8 C8, C12, C13, C15, Capacitor, ceramic, 50 V, X7R, ±10%, 0.1 µF, 0603 Std Std
C26, C27, C40, C43
0 D1, D7 Diode, switching, 90 V, 100 mA, high speed, open, 1SS355TE-17 Rohm
SOD-323
2 D10, D11 Diode, Schottky, 40 V, 350 mA, SOD-323 SD103AWS-7-F Diodes Inc
1 D13 Diode, Zener, 3.9 V, 20 mA, 225 mW, 5%, SOT23 BZX84C3V9LT1G Onsemi
0 D14 Diode, Zener, 12 V, 20 mA, 225 mW, 5%, open, SOT23 BZX84C12LT1G Onsemi
3 D2, D6, D12 Diode, switching, 150 mA, 75 V, 350 mW, SOT23 BAS16-V Vishay-Liteon
1 D3 Diode, Zener, 8.2 V, 20 mA, 350 mW, 8.2 V, SOT23 MMBZ5237B-7-F Diodes Inc
1 D4 Diode, dual Schottky, 200 mA, 30 V, SOT23 BAT54C Vishay-Liteon
1 D5 Diode, dual Schottky, 300 mA, 30 V, SOT23 BAT54AFILM ST
1 D8 Diode, Zener, 5.1 V, 20- mA, 225 mW, 5%, 5.1 V, BZX84C5V1LT1G Onsemi
SOT23
0 D9 Diode, Zener, 11 V, 20 mA, 350 mW, open, SOT23 MMBZ5241B-7-F Diodes Inc
1 J1 Terminal block, 2 pin, 6 A, 3.5 mm, 0.27 inch x 0.25 OSTTE020161 OST
inch
1 J2 Terminal block, 4 pin, 15 A, 5.1 mm, 0.80 inch x 0.35 ED120/4DS OST
inch
1 L1 Inductor, SMT, 6 A, 8.8 mΩ, 1.0 µH, 0.28 inch x 0.27 RLF7030T- TDK
inch 1R0N6R4
1 L2 Inductor, power choke, ±20%, 1.3 µH, 18 mm x 18 mm 7443556130 Wurth
Elektronik
1 L3 Inductor, SMT, 220 mA, 5.25 Ω, 220 µH, 0.19 inch x MA5401-AE Coilcraft
0.19 inch
0 Q1, Q3 Transistor, NPN, VCE = 100 V, IC = 1 A, open, SOT89 FCX493TA Zetex
4 Q2, Q5, Q6, Q8 MOSFET, N-channel, 30 V, 50 A, 2.6 mΩ, LFPAK RJK0328DPB Renesas
2 Q4, Q7 MOSFET, N-channel, 100 V, 5.7 A, 25 mΩ, PWRPAK SI7456DP-T1 Vishay
5 R1, R4, R29, R39, Resistor, chip, 1/16 W, ±1%, 10.0 kΩ, 0603 Std Std
R43
1 R10 Resistor, chip, 1/16 W, ±1%, 2.32 kΩ, 0603 Std Std
0 R12 Resistor, chip, 1/16 W, ±1%, open, 0603 Std Std
2 R14, R30 Resistor, chip, 1/16 W, ±1%, 1.00 kΩ, 0603 Std Std
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www.ti.com List of Materials
Table 3. UCC25230EVM-662 List of Materials (continued)
QTY REF DES DESCRIPTION PART NUMBER MFR
3 R15, R45, R47 Resistor, chip, 1/16 W, ±1%, 0 Ω, 0603 Std Std
1 R16 Resistor, chip, 1/16 W, ±1%, 75.0 kΩ, 0603 Std Std
2 R17, R19 Resistor, chip, 1/16 W, ±1%, 402 Ω, 0603 Std Std
1 R18 Resistor, chip, 1/16 W, ±1%, 4.64 kΩ, 0603 Std Std
2 R2, R13 Resistor, chip, 1/16 W, ±1%, 5.11 kΩ, 0603 Std Std
1 R20 Resistor, chip, 1/16 W, ±1%, 6.81 kΩ, 0603 Std Std
1 R21 Resistor, chip, 1/16 W, ±1%, 365 Ω, 0603 Std Std
1 R22 Resistor, chip, 1/16 W, ±1%, 1.50 kΩ, 0603 Std Std
1 R23 Resistor, chip, 1/8 W, ±1%, 316 kΩ, 0805 std std
1 R24 Resistor, chip, 1/4 W, ±1%, 17.8 Ω, 1206 Std Std
1 R25 Resistor, chip, 1/4 W, ±1%, 36.5 Ω, 1206 Std Std
1 R26 Resistor, chip, 1/16 W, ±1%, 10.5 kΩ, 0603 Std Std
1 R28 Resistor, chip, 1/16 W, ±1%, 20.0 kΩ, 0603 Std Std
2 R3, R6 Resistor, chip, 1/16 W, ±1%, 23.2 kΩ, 0603 Std Std
1 R31 Resistor, chip, 1/4 W, ±1%, 90.9 Ω, 1206 Std Std
2 R32, R33 Resistor, chip, 1/4 W, ±1%, 20 Ω, 1206 Std Std
1 R34 Resistor, chip, 1/16 W, ±1%, 47.5 kΩ, 0603 Std Std
2 R35, R36 Resistor, chip, 1/16 W, ±1%, 1 Ω, 0603 Std Std
0 R37 Resistor, chip, 1/4 W, ±1%, open, 1206 Std Std
1 R38 Resistor, chip, 1/16 W, ±1%, 30.1 kΩ, 0603 std std
2 R40, R41 Resistor, chip, 1/16 W, 1%, 90.9 kΩ, 0603 std std
1 R42 Resistor, chip, 1/16 W, 1%, 2.49 kΩ, 0603 Std Std
1 R46 Resistor, chip, 1/16 W, ±1%, 100 kΩ, 0603 Std Std
2 R5, R27 Resistor, chip, 1/16 W, ±1%, 200 Ω, 0603 Std Std
2 R7, R44 Resistor, chip, 1/16 W, ±1%, 49.9 Ω, 0603 Std Std
1 R8 Resistor, chip, 1/16 W, ±1%, 51.1 kΩ, 0603 Std Std
2 R9, R11 Resistor, chip, 1/16 W, ±1%, 49.9 kΩ, 0603 Std Std
1 T1 Transformer, half bridge ±30%, 270 µH, 1.120 inch x AF5096 Vitec
1.273 inch Electronics
1 T2 Xfmr, current sense, 100:1, 0.315 inch x 0.320 inch CST2-100L Coilcraft
1 T3 Transformer, 1 primary, 1 secondary, 785 µH, 0.460 PA0185 Pulse
inch x 0.340i inch
2 U1, U5 Photocoupler, SOP-4 PS2701-1 NEC
1 U2 120-V Boot, 3-A Peak, High-Side Low-Side Driver, SO8 UCC27201DDA TI
1 U3 Advanced PWM Controller with Pre-Bias Operation, UCC28250PW TI
TSSOP-20
1 U4 Dual 4-A Peak Low-Side MOSFET Driver, SO8 UCC27324D TI
1 U6 12-V to 100-V Input, 0.2-A Output Switching Converter, UCC25230DRM TI
VSON
17
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Evaluation Board/Kit Important Notice
Texas Instruments (TI) provides the enclosed product(s) under the following conditions:
This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION
PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the
product(s) must have electronics training and observe good engineering practice standards. As such, the goods being provided are
not intended to be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations,
including product safety and environmental measures typically found in end products that incorporate such semiconductor
components or circuit boards. This evaluation board/kit does not fall within the scope of the European Union directives regarding
electromagnetic compatibility, restricted substances (RoHS), recycling (WEEE), FCC, CE or UL, and therefore may not meet the
technical requirements of these directives or other related directives.
Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30
days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY
SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING
ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all
claims arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to
take any and all appropriate precautions with regard to electrostatic discharge.
EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE TO THE OTHER
FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not exclusive.
TI assumes no liability for applications assistance, customer product design, software performance, or infringement of
patents or services described herein.
Please read the User’s Guide and, specifically, the Warnings and Restrictions notice in the User’s Guide prior to handling the
product. This notice contains important safety information about temperatures and voltages. For additional information on TI’s
environmental and/or safety programs, please contact the TI application engineer or visit www.ti.com/esh.
No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, or
combination in which such TI products or services might be or are used.
FCC Warning
This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION
PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. It generates, uses, and
can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to 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.
EVM Warnings and Restrictions
It is important to operate this EVM within the input voltage range of and the output voltage range of 3.2 V to 3.4 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.
Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the
EVM. Please consult the EVM User's 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, 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 linear regulators, switching transistors, 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 during operation, please be aware that these devices may be very warm to the touch.
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright ©2012, Texas Instruments Incorporated

EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS
Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions:
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims
arising from the handling or use of the goods.
Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30 days from
the date of delivery for a full refund. THE FOREGOING LIMITED WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO
BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF
MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH
ABOVE, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES.
Please read the User's Guide and, specifically, the Warnings and Restrictions notice in the User's Guide prior to handling the product. This
notice contains important safety information about temperatures and voltages. For additional information on TI's environmental and/or safety
programs, please visit www.ti.com/esh or contact TI.
No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, or
combination in which such TI products or services might be or are used. TI currently deals with a variety of customers for products, and
therefore our arrangement with the user is not exclusive. TI assumes no liability for applications assistance, customer product design,
software performance, or infringement of patents or services described herein.
REGULATORY COMPLIANCE INFORMATION
As noted in the EVM User’s Guide and/or EVM itself, this EVM and/or accompanying hardware may or may not be subject to the Federal
Communications Commission (FCC) and Industry Canada (IC) rules.
For EVMs not subject to the above rules, this evaluation board/kit/module is intended for use for ENGINEERING DEVELOPMENT,
DEMONSTRATION OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end product fit for general consumer
use. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing
devices pursuant to part 15 of FCC or ICES-003 rules, which are designed to provide reasonable protection against radio frequency
interference. Operation of the equipment 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.
General Statement for EVMs including a radio
User Power/Frequency Use Obligations: This radio is intended for development/professional use only in legally allocated frequency and
power limits. Any use of radio frequencies and/or power availability of this EVM and its development application(s) must comply with local
laws governing radio spectrum allocation and power limits for this evaluation module. It is the user’s sole responsibility to only operate this
radio in legally acceptable frequency space and within legally mandated power limitations. Any exceptions to this are strictly prohibited and
unauthorized by Texas Instruments unless user has obtained appropriate experimental/development licenses from local regulatory
authorities, which is responsibility of user including its acceptable authorization.
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
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
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.
For EVMs annotated as IC – INDUSTRY CANADA Compliant
This Class A or B digital apparatus complies with Canadian ICES-003.
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the
equipment.
Concerning EVMs including radio transmitters
This device complies with Industry Canada licence-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.
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.
Cet appareil numérique de la classe A ou B est conforme à la norme NMB-003 du Canada.
Les changements ou les modifications pas expressément approuvés par la partie responsable de la conformité ont pu vider l’autorité de
l'utilisateur pour actionner l'équipement.
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.
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.
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