Texas instruments Tps2379 evm User manual

User's Guide

SLVU687–March 2012

TPS2379 EVM User’s Guide

This User’s Guide describes the evaluation module (EVM) for the TPS2379 (TPS2379EVM-106).

TPS2379 is an IEEE802.3at type 2 compliant powered device (PD) controller with a GATE output for

controlling external booster MOSFETs.

Contents

1 Introduction .................................................................................................................. 2

1.1 Features ............................................................................................................. 2

1.2 Applications ......................................................................................................... 2

2 Electrical Specifications at 25°C .......................................................................................... 2

3 Description ................................................................................................................... 3

4 Schematic .................................................................................................................... 4

5 General Configuration and Description .................................................................................. 5

5.1 Physical Access .................................................................................................... 5

5.2 Test Setup .......................................................................................................... 6

6 EVM Assembly Drawings and Layout Guidelines ...................................................................... 6

6.1 PC Drawings ........................................................................................................ 6

6.2 Layout Guidelines ................................................................................................ 10

6.3 EMI Containment ................................................................................................. 10

7 Bill of Materials ............................................................................................................. 11

List of Figures

1 TPS2379EVM Schematic.................................................................................................. 4

2 Typical TPS2379EVM Test Setup ........................................................................................ 6

3 Top Side Placement........................................................................................................ 7

4 Top Side Routing ........................................................................................................... 7

5 Layer Two Routing.......................................................................................................... 8

6 Layer Three Routing........................................................................................................ 8

7 Bottom Side Routing........................................................................................................ 9

8 Bottom Side Placement .................................................................................................... 9

List of Tables

1 TPS2379EVM Electrical and Performance Specifications............................................................. 2

2 Connector Functionality.................................................................................................... 5

3 Test Points................................................................................................................... 5

4 Jumpers ...................................................................................................................... 5

5 TPS2379EVM Bill of Materials .......................................................................................... 11

SLVU687–March 2012 TPS2379 EVM User’s Guide

Introduction

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1 Introduction

The TPS2379EVM allows reference circuit evaluation of the TI TPS2379 PD controller. The TPS2379

features GATE output for controlling external MOSFETs for extended power applications. It also features a

100 V pass transistor, 140 mA inrush current limiting, type-2 indication, auto-retry fault protection, and an

open-drain power-good output.

1.1 Features

• Gigabit Ethernet pass through interface

• Switched output return for “ease of use” loading

• GATE output to drive the external MOSFET

• Extra detection and class signature selection for non-standard applications

• IEEE 802.3at type-2 hardware classification with status flag (T2P) and LED

• DC/DC converter enable (CDB)

• Robust 100 V, 0.5 Ωinternal hotswap MOSFET and 100 V, 64 mΩexternal MOSFET

• Operating power in excess of 60W with four-pair PSE

1.2 Applications

• IEEE 802.3at-compliant devices

• Video and VoIP telephones

• Multiband access points

• Security cameras

• Pico-base stations

2 Electrical Specifications at 25°C

Table 1. TPS2379EVM Electrical and Performance Specifications

PARAMETER CONDITION MIN TYP MAX UNITS

POWER INTERFACE

Input Voltage Applied to the power pins of connectors J1 or J3 0 – 57 V

Operating Voltage After start up. 30 – 57 V

Rising input voltage at device terminals. – – 40

Input UVLO V

Falling input voltage. 30.5 – –

Detection voltage At device terminals 1.4 – 10.1 V

Classification voltage At device terminals 11.9 – 23.0 V

J6 shunt removed 24.9

Detection signature kΩ

J6 shunt installed 12.5

J7 shunt removed 38 – 42

Classification current mA

J7 shunt installed 64 – 72

Inrush current-limit 100 – 180 mA

Internal MOSFET only (R13 removed) 850 – 1200

Operating current-limit mA

Internal plus external (R13 installed) 2260

Efficiency Four input pairs. Measured from J1 to J4 60W output power 97.5%

2TPS2379 EVM User’s Guide SLVU687–March 2012

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Description

3 Description

TPS2379EVM-106 enables full evaluation of the TPS2379 device. Refer to the schematic shown in

Figure 1. Ethernet power is applied from J1 to T1/T2 and is dropped to the diode bridges (D3/D4/D8/D9 or

D5/D6/D10/D11) from the T1/T2 center taps. The series R-C circuit from each center tap help balance the

Ethernet cable impedance and are critical for ESD and EMI/EMC performance. These circuits are

terminated at TP10 (EGND) through the high voltage capacitor, C9. At the output of the diode bridges is

the EMI/EMC filter and transient protection for the TPS2379. R7 provides the detection signature and R8

provides the class 4 signature resistance to the PSE. A shunt on J6 can be installed to present a 12.5kΩ

detection signature resistance. A shunt on J7 can be installed to present a 37.4Ω(68mA) class signature

resistance.

To the right of the TPS2379 (U1) is the switched side of the PD controller. The TPS2379 RTN pin

provides inrush limited turn on and charge of the bulk capacitor, C3. During inrush, the TPS2379 GATE

pin is pulled low (with respect to VSS) disabling the external boost MOSFET, Q2. When inrush is

complete, the GATE pin goes high and enables a parallel conduction path through Q2 and the TPS2379

internal MOSFET. Q1 provides current limit for the external MOSFET when the voltage between TP12 and

TP11 reaches the base-emitter on threshold of Q1.

Additionally during inrush, the TPS2379 CDB pin is pulled low (with respect to the RTN pin). Since the

CDB pin is connected to the GATE of Q3, Q3 is off during inrush and J4 pin 1 is not connected to the RTN

pin. This allows the output load to remain connected during EVM testing. LED’s D1 and D2 provide

operational visual indications of T2P and ON respectively.

SLVU687–March 2012 TPS2379 EVM User’s Guide

PAIR36

PAIR78

PAIR45

PAIR12

VSS

VDD

T2P

CDB RTN

(ON)(T2P)

CDB

SRTN

T2P

VDD

LED BIAS

SWITCHED

OUTPUT

+54V@1A

POE INPUT ETHERNET DATA

EGND

NOTES

1NOT USED

Use for switched RTN

GATE

ESNS

XDEN

XCLS

63.4

FB1 500

B2100

SMAJ58A

1000pF

24.9k

0.1uF

1000pF

0.01uF

R10

0.01uF

R11

0.01uF

R12

0.01uF

B2100

D10

B2100

D11

B2100

FB2 500

+C3

47uF

12.1k

LN1271RAL

LN1371G

12.1k

R3 75

R6 75

R2 75

R1 75

R14 100k

TP1

TP11

TP3

TP5

TP4

TP7

TP2

TP8 TP9

D12

BZT52C18V

1000pF

1VDD

2DEN

3CLS

4VSS 5

RTN

CDB

T2P

GATE

PWPD

TPS2379DDA

PHY

LINE

ETH1-230LD

PHY

LINE

ETH1-230LD

R17

0.27

R13

150

R16 200k

TP6

TP12

FMMT493TC

R15

90.9

R18

TP10

IRFR3410PbF

BUK7275-100A

R19

24.9k

Schematic

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4 Schematic

Figure 1. TPS2379EVM Schematic

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General Configuration and Description

5 General Configuration and Description

5.1 Physical Access

Table 2 lists the TPS2379EVM connector functionality, Table 3 describes the test point availability and

Table 4 describes the jumper functionality.

Table 2. Connector Functionality

Connector Label Description

Power over ethernet (POE) input. Connect to power sourcing equipment (PSE) power and data

J1 PWR+DATA source.

J2 DATA Ethernet data pass through. Connect to downstream ethernet device.

Output connector to load. Connect pin #4 (VDD) to positive input and pin #1 (RTN) to low side of

J4 J4 load. Pin #2 (CDB) can be used to inhibit the converter while the TPS2379 output is ramping up. Pin

#3 (T2P) can be used to notify the load of when high power source is present.

D1 (RED) T2P T2P (type 2 PSE) LED. When ON this indicates that a type 2 PSE is detected.

D2 (GREEN) ON TPS2379 Output Powered.

Table 3. Test Points

Test Point Color Label Description

TP6 WHT GATE Gate output to external MOSFET

TP3 RED PAIR12 Data pair from pins 1 and 2 of J1

TP4 ORG PAIR36 Data pair from pins 3 and 6 of J1

TP5 RED PAIR45 Spare pair from pins 4 and 5 of J1

TP7 ORG PAIR78 Spare pair from pins 7 and 8 of J1

TP1 RED VDD High side output from bridge

TP2 WHT T2P Type 2 PSE output from TPS2379

TP9 BLK RTN Switched low side from TPS2379

TP8 WHT CDB Converter disable output from TPS2379

TP11 BLK VSS Low side output from bridge

TP10 SM EGND Earth or chassis ground point

TP12 BLK ESNS External MOSFET current sense point

Table 4. Jumpers

Jumper Label Description

J3 J4 LED bias jumper. Install to furnish LED bias for T2P and ON LED’s

J5 J5 Switched output return bypass jumper.

This jumper can be used to switch in alternate non-standard detection resistors. When

J6 XDEN the shunt is removed, the standard 24.9kΩis used and when the shunt is installed, the

detection resistance is ~12.5kΩ

This jumper can be used to switch in alternate non-standard classification resistors.

J7 XCLS When the shunt is removed, the standard class 4 63.4Ω(40mA) resistor is used and

when the shunt is installed, the classification resistance is ~37.4Ω(68mA).

SLVU687–March 2012 TPS2379 EVM User’s Guide

DUT

TPS2379EVM

PSE

Ethernet

Device

VDD

SRTN

(Ethernet Cable)

T2P

CDB

EVM Assembly Drawings and Layout Guidelines

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5.2 Test Setup

Figure 2 shows a typical test setup for TPS2379EVM. Connect J1 to the power sourcing equipment (PSE)

Power for the Ethernet device is available at J4 and the pass through Ethernet data is available at J2.

Figure 2. Typical TPS2379EVM Test Setup

6 EVM Assembly Drawings and Layout Guidelines

6.1 PC Drawings

The following figures show component placement and layout of the EVM.

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EVM Assembly Drawings and Layout Guidelines

Figure 3. Top Side Placement

Figure 4. Top Side Routing

SLVU687–March 2012 TPS2379 EVM User’s Guide

EVM Assembly Drawings and Layout Guidelines

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Figure 5. Layer Two Routing

Figure 6. Layer Three Routing

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EVM Assembly Drawings and Layout Guidelines

Figure 7. Bottom Side Routing

Figure 8. Bottom Side Placement

SLVU687–March 2012 TPS2379 EVM User’s Guide

EVM Assembly Drawings and Layout Guidelines

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6.2 Layout Guidelines

The layout of the PoE front end should follow power and EMI/ESD best practice guidelines. A basic set of

recommendations include:

• Parts placement must be driven by power flow in a point-to-point manner; RJ-45, Ethernet transformer,

diode bridges, TVS and 0.1-µF capacitor, and TPS2379.

• All leads should be as short as possible with wide power traces and paired signal and return.

• There should not be any crossovers of signals from one part of the flow to another.

• Spacing consistent with safety standards like IEC60950 must be observed between the 48-V input

voltage rails and between the input and an isolated converter output.

• The TPS2379 should be located over split, local ground planes referenced to VSS for the PoE input

and to RTN for the switched output.

• Large copper fills and traces should be used on SMT power-dissipating devices, and wide traces or

overlay copper fills should be used in the power path.

6.3 EMI Containment

• Use compact loops for dv/dt and di/dt circuit paths (power loops and gate drives)

• Use minimal, yet thermally adequate, copper areas for heat sinking of components tied to switching

nodes (minimize exposed radiating surface).

• Use copper ground planes (possible stitching) and top layer copper floods (surround circuitry with

ground floods)

• Use 4 layer PCB if economically feasible (for better grounding)

• Minimize the amount of copper area associated with input traces (to minimize radiated pickup)

• Use Bob Smith terminations, Bob Smith EFT capacitor, and Bob Smith plane

• Use Bob Smith plane as ground shield on input side of PCB (creating a phantom or literal earth

ground)

• Use of ferrite beads on input (allow for possible use of beads or 0 ohm resistors)

• Maintain physical separation between input-related circuitry and power circuitry (use ferrite beads as

boundary line)

• Possible use of common-mode inductors

• Possible use of integrated RJ-45 jacks (shielded with internal transformer and Bob Smith terminations)

• End-product enclosure considerations (shielding)

10 TPS2379 EVM User’s Guide SLVU687–March 2012

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Bill of Materials

7 Bill of Materials

Table 5. TPS2379EVM Bill of Materials

Count Ref Des Value Description Size Part Number Supplier

2 FB1-2 500 Bead, Ferrite, 2000mA, 60m-ohm 1206 MI1206L501R-10 Steward

4 C4-7 0.01uF Capacitor, Ceramic, 100V, X7R, 10% 603 STD STD

1 C8 1000pF Capacitor, Ceramic, 100V, X7R, 10% 603 STD STD

1 C2 0.1uF Capacitor, Ceramic, 100V, X7R, 10% 805 STD STD

2 C1 C9 1000pF Capacitor, Ceramic, 2kV, X7R, 15% 1210 Std STD

1 C3 47uF Capacitor, Aluminum, 63V, ±20% 0.328 x 0.390 inch EEE-FK1J470P Panasonic

2 J1-2 5520252-4 Connector, Jack, Modular, 8 POS 0.705 x 0.820 inch 5520252-4 AMP

1 D12 BZT52C18V Diode, Zener, Planar Power, 500mW, 18V SOD-123 BZT52C18-7-F Diodes, Inc

1 D1 LN1271RAL Diode, LED, Ultra Bright Red, 10-mA, 5-mcd 0.114 X 0.049 inch LN1271RAL Panasonic

1 D2 LN1371G Diode, LED, Green, 10-mA, 2.6-mcd 0.114 X 0.049 inch LN1371G Panasonic

8 D3-6 D8-11 B2100 Diode, Schottky, 2-A, 100-V SMB B2100-13-F Diodes, Inc

1 D7 SMAJ58A Diode, TVS, 58-V, 1W SMA SMAJ58A-13-F Diodes, Inc

4 J3 J5-7 PEC02SAAN Header, Male 2-pin, 100mil spacing 0.100 inch x 2 PEC02SAAN Sullins

1 R14 100k Resistor, Chip, 1/16W, 1% 603 STD STD

1 R16 200k Resistor, Chip, 1/16W, 1% 603 STD STD

2 R7 R19 24.9k Resistor, Chip, 1/16W, 1% 603 STD STD

1 R13 150 Resistor, Chip, 1/16W, 1% 603 STD STD

8 R1-3 R6 R9-12 75 Resistor, Chip, 1/16W, 1% 603 STD STD

1 R8 63.4 Resistor, Chip, 1/10W, 1% 805 STD STD

1 R15 90.9 Resistor, Chip, 1/10W, 1% 805 STD STD

2 R4-5 12.1k Resistor, Chip, 0.6W, 1% 2010 STD STD

1 R17 0.27 Resistor, Chip, 1W, 1% 2512 STD STD

0 R18 0.27 Resistor, Chip, 1W, 1% 2512 STD STD

1 J4 ED120/4DS Terminal Block, 4-pin, 15-A, 5.1mm 0.80 x 0.35 inch ED120/4DS OST

3 TP1 TP3 TP5 5010 Test Point, Red, Thru Hole 0.125 x 0.125 inch 5010 Keystone

3 TP9 TP11-12 5011 Test Point, Black, Thru Hole 0.125 x 0.125 inch 5011 Keystone

3 TP2 TP6 TP8 5012 Test Point, White, Thru Hole 0.125 x 0.125 inch 5012 Keystone

2 TP4 TP7 5013 Test Point, Orange, Thru Hole 0.125 x 0.125 inch 5013 Keystone

1 U1 TPS2379DDA IC, IEEE 802.3at PoE High Power PD Controller TPS2379DDA TPS2379DDA TI

1 TP10 5016 Test Point, SM, 0.150 x 0.090 0.185 x 0.135 inch 5016 Keystone

1 Q1 FMMT493TC Trans, NPN Midium Power, 100V 1A SOT-23 FMMT493TC Diodes

1 Q2 BUK7275 MOSFET, N-ch, 100-V, 22-A, 75 milliohm DPAK BUK7275 NXP

SLVU687–March 2012 TPS2379 EVM User’s Guide

Bill of Materials

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Table 5. TPS2379EVM Bill of Materials (continued)

Count Ref Des Value Description Size Part Number Supplier

1 Q3 IRFR3410 MOSFET, N-ch, 100-V, 31-A, 39 milliohm DPAK IRFR3410TRLPBF IRF

2 T1-2 ETH1-230LD Transformer, High-Power PoE Magnetics S0 14 Wide ETH1-230LD Coilcraft

1 Shunt, Black 100-mil 929950-00 3M

1 — PCB, 3.5 In x 1.7 In x 0.062 In PWR106 Any

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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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【【Important Notice for Users of this Product in Japan】】

This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan

If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with respect to this product:

1. Use this product 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 this product only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this

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respect to this product. Also, please do not transfer this product, unless you give the same notice above to the transferee. Please note

that if you could not follow the instructions above, you will be subject to penalties of Radio Law of Japan.

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【ご使用にあたっての注】

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2. 実験局の免許を取得後ご使用いただく。

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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。

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EVALUATION BOARD/KIT/MODULE (EVM)

WARNINGS, RESTRICTIONS AND DISCLAIMERS

For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this EVM is not a finished

electrical equipment and not intended for consumer use. It is intended solely for use for preliminary feasibility evaluation in

laboratory/development environments by technically qualified electronics experts who are familiar with the dangers and application risks

associated with handling electrical mechanical components, systems and subsystems. It should not be used as all or part of a finished end

product.

Your Sole Responsibility and Risk. You acknowledge, represent and agree that:

1. You have unique knowledge concerning Federal, State and local regulatory requirements (including but not limited to Food and Drug

Administration regulations, if applicable) which relate to your products and which relate to your use (and/or that of your employees,

affiliates, contractors or designees) of the EVM for evaluation, testing and other purposes.

2. You have full and exclusive responsibility to assure the safety and compliance of your products with all such laws and other applicable

regulatory requirements, and also to assure the safety of any activities to be conducted by you and/or your employees, affiliates,

contractors or designees, using the EVM. Further, you are responsible to assure 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.

3. You will employ reasonable safeguards to ensure that your use of the EVM will not result in any property damage, injury or death, even

if the EVM should fail to perform as described or expected.

4. You will take care of proper disposal and recycling of the EVM’s electronic components and packing materials.

Certain Instructions. It is important to operate this EVM within TI’s recommended specifications and environmental considerations per the

user guidelines. Exceeding the specified EVM ratings (including but not limited to input and output voltage, current, power, and

environmental ranges) may cause property damage, personal injury or death. If there are questions concerning these ratings please 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 result in unintended and/or inaccurate operation and/or possible permanent damage to the EVM and/or

interface electronics. 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 as long as the input and output are maintained at a normal ambient operating temperature. These components include

but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors which can be identified using the

EVM schematic located in the EVM User's Guide. When placing measurement probes near these devices during normal operation, please

be aware that these devices may be very warm to the touch. As with all electronic evaluation tools, only qualified personnel knowledgeable

in electronic measurement and diagnostics normally found in development environments should use these EVMs.

Agreement to Defend, Indemnify and Hold Harmless. You agree to 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 use of the EVM that is not in accordance with the terms of the agreement. This obligation shall apply whether Claims

arise under law of tort or contract or any other legal theory, and even if the EVM fails to perform as described or expected.

Safety-Critical or Life-Critical Applications. If you intend to evaluate the components for possible use in safety critical applications (such

as life support) where a failure of the TI product would reasonably be expected to cause severe personal injury or death, such as devices

which are classified as FDA Class III or similar classification, then you must specifically notify TI of such intent and enter into a separate

Assurance and Indemnity Agreement.

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265