Texas Instruments TPS2378EVM-602 User Manual

User's Guide

SLVUAG7A–May 2015–Revised July 2017

TPS2378EVM-602 Evaluation Module

This user’s guide describes the TPS2378 evaluation module (TPS2378EVM-602). TPS2378EVM-602 contains evaluation and reference circuitry for a forced four-pair UPOE compliant application.

Contents

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

2 Electrical Specifications .................................................................................................... 2

3 Description ................................................................................................................... 2

4 Schematic..................................................................................................................... 3

5 General Configuration and Description .................................................................................. 6

6 TPS2378EVM-602 Performance Data.................................................................................... 8

7 EVM Assembly Drawing and Layout Guidelines ...................................................................... 10

8 Bill of Materials ............................................................................................................. 15

List of Figures

1 TPS2378EVM-602 PD Front-End Schematic ........................................................................... 3

2 TPS2378EVM-602 Dual PD section ...................................................................................... 4

3 TPS2378EVM-602 DCDC Converter Section ........................................................................... 5

4 Typical TPS2378EVM-602 Test Setup ................................................................................... 7

5 Startup Response to 26-W Load for a 48-V Input....................................................................... 8

6 Transient Response from 290 mA to 2.9 A for a 48-V Input........................................................... 8

7 Efficiency of the TPS2378EVM-602....................................................................................... 9

8 Top Side Component Placement ........................................................................................ 10

9 Top Side Routing........................................................................................................... 10

10 Layer 2 Routing............................................................................................................. 11

11 Layer 3 Routing............................................................................................................. 11

12 Bottom Side Routing....................................................................................................... 12

13 Bottom Component Placement .......................................................................................... 12

1 TPS2378EVM-602 Electrical and Performance Specifications at 25°C.............................................. 2

2 Connector Functionality .................................................................................................... 6

3 Test Points ................................................................................................................... 6

4 TPS2378EVM-602 BOM .................................................................................................. 15

Trademarks

All trademarks are the property of their respective owners.

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List of Tables

TPS2378EVM-602 Evaluation Module

Introduction

1 Introduction

The TPS2378EVM-602 allows reference circuitry evaluation of a dual TPS2378 forced four pair UPOE compliant application. It contains input and output power connectors and an array of onboard test points for circuit and evaluation.

1.1 Features

• Excellent efficiency, driven, synchronous flyback design.

• Forced four-pair UPOE compliant

• 19 V at 2.3 A DC output (2.9-A capable)

1.2 Applications

• Universal power over ethernet (UPOE) compliant devices

• Video and VoIP telephones

• Multiband access points

• Security cameras

• Pico-base stations

2 Electrical Specifications

Table 1. TPS2378EVM-602 Electrical and Performance Specifications at 25°C

Parameter Condition MIN TYP MAX Unit

Power Interface

Input Voltage Applied to the power pins of connectors J1 or J3 42.5 57 Operating Voltage

Input UVLO, POE input J1

Detection voltage Classification voltage Classification current

Operating current-limit

DC/DC Converter

Output Voltage 42.5 ≤ VIN≤ 57 V, I Output Current 42.5 ≤ VIN≤ 57 V 19-V output 2.9 A Output ripple voltage, pk-to-pk VIN= 48 V, I Efficiency, dc-dc converter VIN= 48 V, I Efficiency, end- to-end VIN= 48 V, I Switching frequency 225 270 kHz

(1)

Per TPS2378 PD

(1)

After start up. 30 57 Rising input voltage 40 Falling input voltage 30 at device terminals 1.4 10.1 at device terminals 11.9 23.0 R

= 63.4 Ω 38 42

class

100 180 850 1200

≤ I

LOAD

= 2.9 A 19-V output 225 mV

LOAD

= 2.9 A 93%

LOAD

= 2.9 A 19-V output 90%

LOAD

(max) 19-V output 19.01 19.04 19.07 V

LOAD

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mAInrush current-limit

3 Description

TPS2378EVM-602 enables full evaluation of a forced four pair UPOE compliant application. A detailed discussion regarding this type of high power PoE can be found in SLVA625.

The TPS23861EVM-612 contains two high power ports in which either one can be connected to the TPS2378EVM-602 with a CAT5E cable to power the EVM. This is described in Section 5.2.

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POE INPUT

ETHERNET DATA

42.5-57VDC

CHGND

2 3 4

5 6 7 8

2 3 4

5 6 7 8

0.01µF

C26

0.01µF

C27

0.01µF

C28

0.01µF

C29

75.0

R32

75.0

R33

75.0

R34

75.0

R35

75.0

R28

75.0

R29

75.0

R30

75.0

R31

1000pF

C25

1000pF

C32

1000pF

C30

1000pF

C31

100 ohm

PAIR12

PAIR36

PAIR45

PAIR78

CHGND

D8 D 9

D10 D11

D12 D13

D14 D15

DNP

J10

DNP

~BRG1

~BRG2

+BRG1

-BRG1

+BRG2

-BRG2

TP16

TP12

TP13

TP14

TP15

VSS2

VSS1

VDD

1:1

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Schematic

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4 Schematic

Figure 1. TPS2378EVM-602 PD Front-End Schematic

UPOE OUTPUT 60WMAX

T2P1+

T2P1-

T2P2+

T2P2-

PWRGND

0.1µF

C34

0.1µF

C36

24.9k

R55

24.9k

R49

63.4

R52

63.4

R44

100k

R41

100k

R56

100k

R40

100k

R48

10.0k

R39

10.0k

R38

0.01µF

C37

0.01µF

C38

BAT46W-7-F

D21

BAT46W-7-F

D22

47µF

C35

47µF

C33

1 2 3

VDD

DEN

CLS

VSS4RTN

CDB

T2P

APD

PWPD

TPS2378DDA

VDD

DEN

CLS

VSS4RTN

CDB

T2P

APD

PWPD

TPS2378DDA

FOD817DS

58V

SMAJ58A

D17

BSS123Q6BSS123

58V

SMAJ58A

D19

7,8

1,2,3

5,6,

FDMS86105

7,8

1,2,3

5,6,

FDMS86105

R43

DNP

BAT46W-7-F

D20

30.1k

R42

20.0k

R50

DNP

VBIAS

PGND

LO E6SF -ABCB-24-1-Z

D16

VOUT

PGND

LO E6SF -ABCB-24-1-Z

D18

49.9k

R46

10.0k

R47

VBIAS

VOUT

49.9k

R53

VOUT

T2P-VPU1

MMBT5550LT1G

HMHA2801A

8.87k

R45

78.7k

R51

VOUT

PGNDPWRGND

5.6k 1W

R37

5.6k 1W

R36

VOUT

T2P-VPU2

12.1k

R57

33.2k

R58

10.0k

R54

TP18

TP17

VDD

VSS1

TP19

VSS2

RTN1

RTN2

VSS1

VSS2

VDD

100

R59

DNP

VBIAS

Schematic

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Figure 2. TPS2378EVM-602 Dual PD section

SPGND

19V/2.9A

PGND

PWRGND

PGND

PWRGND

PGND

0.1µF

200k

R24

10.0k

R18

10.0k

R19

10.0k

R11

R14

2.2µFC32.2µFC42.2µFC539k

MURA120T3G

2200pF

4.7

MMSD4148T1G

7,8

1,2,3

5,6,

FDMS86252

MMBT3906

0.1

1.00k

100pF

C13

20.0

BAT54S-7-F

1µF

C11

1µF

C23

0.047µF

C21

10µFC810µFC910µF

C10

68µF

470pF

C12

0.47µF

C15

0.47µF

C16

47pF

C19

20.0

3.83k

R17

49.9k

R23

2200pF

C17

1 4

8 5

PA0184NLT

22µF

C14

7,8

1,2,3

5,6,

FDMS86105

7.5k

R26

PWRGND

121k

R12

1µF

C22

0.039µF

C24

VIN

RTDEL

RON

ROFF

VREF

SYNC

GND

RSLOPE10FB

SS/SD

PGND

AUX

OUT

PVDD

VDD

LINEUV

LINEOV

UCC2897APW

0.01µF

C18

80.6k

R16

61.9k

R20

100k

R21

1µF

C20

2.61k

R10

4.22k

R13

7.50k

R15

VBIAS

VOUT

LY E6SF- AABA-46-1-Z

PGND

10.0k

HMHA2801A

LPS4018-332MLB

567

8 9

NC1NC

U2 TL431AIDBV

7,8

1,2,3

5,6,

Q10 CSD18504Q5A

J11

LoadDelayDisable

25.5k

R62

25.5k

R63

0.1µF

C40

2.2µF

C39

1.43k

R61

47.5k

R60

RESET

SENSE

VCC

GND

TL7700CDGKR

PGND

VOUT

Optional Load Delay Circuit

0.1µF

C41

TP4

TP11

PGND

TP21

SPGND

TP7

PWRGND

TP2

PWRGND

TP10

VREF

6.81k

R25

2.00k

R27

1.21M

R22

TP8

VBIAS

TP5

OUT

TP6

TP3

DRAIN

TP9

LOOP

TP1

VOUT

TP20

RL_INHBT

VDD

RL_INHBT

PWRGND

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Schematic

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Figure 3. TPS2378EVM-602 DCDC Converter Section

General Configuration and Description

5 General Configuration and Description

5.1 Physical Access

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

the jumper functionality.

Table 2. Connector Functionality

Connector Label Description

J1 VOUT 19-V output voltage of the DCDC converter J2 LED output ON signal J3 PWR+DATA PoE input. Connect to PSE power and data source. J4 DATA Ethernet data passthrough. Connect to downstream Ethernet device J5 T2P-VPU1 T2P Pull up voltage of PD1 J6 T2P T2P output signals for both TPS2378 PDs J7 T2P-VPU2 T2P Pull up voltage of PD2

J11 Load Delay Disable Disables load delay

Table 3. Test Points

Test Points Label Description

TP1 Output Output voltage

TP2, TP7 PWRGND Primary Ground

TP3 DRAIN Primary FET drain voltage TP4 PGND Secondary Ground TP5 OUT Primary FET gate voltage TP6 CS Current sense voltage TP8 VBIAS Aux bias voltage

TP9 LOOP AC Injector point for measuring loop response TP10 VREF Reference voltage TP11 FB Opto Feedback voltage TP12 PAIR12 Voltage on pairs 1 and 2 of the Ethernet cable TP13 PAIR36 Voltage on pairs 3 and 6 of the Ethernet cable TP14 PAIR45 Voltage on pairs 4 and 5 of the Ethernet cable TP15 PAIR78 Voltage on pairs 7 and 8 of the Ethernet cable TP16 CHGND Chassis ground TP17 VDD Chassis ground TP18 VSS1 VSS1 pin of PD1 TP19 VSS2 VSS2 pin of PD2 TP20 RL_INHBT Gate voltage of load delay FET TP21 SPGND Load ground

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TPS2378EVM-602

PSE

Ethernet Cable

VOUT

GND

Ethernet

Device

TPS23861EVM-612

J9 or J21

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5.2 Test Setup

Figure 4 shows the typical test set for the TPS2378EVM-602 using the TPS23861EVM-612.

1. Power the TPS23861EVM-612 as described in SLUUAY8.

2. Connect J3 of the TPS2378EVM-602 to J9 or J21 of the TPS23861EVM-612 using a standard CAT5E cable.

3. Vary the load as necessary for test purposes.

General Configuration and Description

Figure 4. Typical TPS2378EVM-602 Test Setup

5.2.1 Testing the TPS2378EVM-602 without a PSE

The TPS2378EVM-602 can be evaluated without a PSE and only a power supply.

1. Set the power supply between 42.5 V – 57 V Turn off the power supply

2. Short TP15 to TP13

3. Short TP14 to TP12

4. Connect the positive lead of the power supply to TP15

5. Connect the return lead of the power supply to TP14

6. Turn on the power supply

7. Vary the input voltage and output load as necessary for test purposes

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2 ms/div

500 mV/div

1 A/div

50 ms/div

20 V/div

200 mA/div

TPS2378EVM-602 Performance Data

6 TPS2378EVM-602 Performance Data

6.1 Startup

Figure 5 illustrates the startup response of the TPS2378EVM-602 (Ch2-VOUT) with 26-W output load.

Ch1 and Ch4 show the input current of each TPS2378 PD when the TPS23861EVM-612 is connected to the EVM. It shows Type 2 hardware classification and subsequent inrush before starting up and sharing current.

Figure 5. Startup Response to 26-W Load for a 48-V Input

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6.2 Transient Response

Figure 6 illustrates the transient response of the TPS2378EVM-602.

Figure 6. Transient Response from 290 mA to 2.9 A for a 48-V Input

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Output Current (A)

Efficiency

0 0.5 1 1.5 2 2.5 3

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

D001

PoE Converter

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6.3 Efficiency

Figure 7 illustrates the efficiency of the TPS2378EVM-602.

Figure 7. Efficiency of the TPS2378EVM-602

6.4 Startup to Resistive Overload with TPS23861EVM-612

The IEEE802.3at standard requires the PD to startup with less than 13 W (per pair) for 80 ms during PSE inrush. When using the TPS2378EVM-602 EVM with the TPS23861EVM-612 for evaluation while using resistive loads, the output load must be light enough (< 1 A) at startup to meet this requirement. When the output is operational, the load can be further increased to nominal 2.3A.

For startup to higher loads (> 1 A) the TPS2378EVM-602 contains an optional load delay circuit (shown in

Figure 3) that delays connecting the resistive load while the PSE finishes inrush.

The load delay circuit is for evaluation only of the EVM using resistive loads. In final system PD designs, it is the load’s task to accommodate the PSEs inrush time.

To disable the load delay circuit, shunt J11.

TPS2378EVM-602 Performance Data

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EVM Assembly Drawing and Layout Guidelines

7 EVM Assembly Drawing and Layout Guidelines

7.1 PCB Drawings

Figure 8 to Figure 13 show component placement and layout of the TPS2378EVM-602.

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Figure 8. Top Side Component Placement

Figure 9. Top Side Routing

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EVM Assembly Drawing and Layout Guidelines

Figure 10. Layer 2 Routing

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Figure 11. Layer 3 Routing

TPS2378EVM-602 Evaluation Module

EVM Assembly Drawing and Layout Guidelines

Figure 12. Bottom Side Routing

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TPS2378EVM-602 Evaluation Module

Figure 13. Bottom Component Placement

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7.2 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 TPS2378 converter input bulk capacitor.

• Make all leads as short as possible with wide power traces and paired signal and return.

• No crossovers of signals from one part of the flow to another are allowed.

• 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.

• Place the TPS2378 over split, local ground planes referenced to VSS for the PoE input and to COM/RTN for the converter. Whereas the PoE side may operate without a ground plane, the converter side must have one. Do not place logic ground and power layers under the Ethernet input or the converter primary side.

• Use large copper fills and traces on SMT power-dissipating devices, and use wide traces or overlay copper fills in the power path.

The DC/DC Converter layout benefits from basic rules such as:

• Use large copper fills and traces on SMT power-dissipating devices, and use wide traces or overlay copper fills in the power path.

• Minimize trace length of high current, power semiconductors, and magnetic components.

• Where possible, use vertical pairing

• Use the ground plane for the switching currents carefully.

• Keep the high-current and high-voltage switching away from low-level sensing circuits including those outside the power supply.

• Proper spacing around the high-voltage sections of the converter

EVM Assembly Drawing and Layout Guidelines

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EVM Assembly Drawing and Layout Guidelines

7.3 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 a 4-layer PCB, if economically feasible (for better grounding)

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

• Hide copper associated with switching nodes under shielded magnetics, where possible

• Heat sink the quiet side of components instead of the switching side, where possible (like the output side of inductor)

• 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 LC filter at DC/DC input

• Dampen high-frequency ringing on all switching nodes, if present (allow for possible snubbers)

• Control rise times with gate-drive resistors and possibly snubbers

• Switching frequency considerations

• Use of EMI bridge capacitor across isolation boundary (isolated topologies)

• Observe the polarity dot on inductors (embed noisy end)

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

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

• Balance efficiency versus acceptable noise margin

• 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)

• countless

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Bill of Materials

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8 Bill of Materials

Table 4. TPS2378EVM-602 BOM

Designator Quantity Value Description Package Reference Part Number Manufacturer

C1, C17 2 2200pF CAP, CERM, 2200pF, 2000V, +/-10%, X7R, 1812 1812 C4532X7R3D222K TDK

C2, C6, C34, C36 4 0.1uF CAP, CERM, 0.1uF, 100V, +/-10%, X7R, 0805 0805 C0805C104K1RACTU Kemet

C3 1 CAP, CERM, 2.2uF, 100V, +/-10%, X7R, 1210 1210 HMK325B7225KN-T Taiyo Yuden

C4, C5 2 2.2uF CAP, CERM, 2.2uF, 100V, +/-10%, X7R, 1210 1210 HMK325B7225KN-T Taiyo Yuden

C7 1 68uF CAP, AL, 68uF, 25V, +/-20%, 0.36 ohm, SMD SMT Radial D EEE-FK1E680P Panasonic

C8, C9, C10 3 10uF CAP, CERM, 10uF, 25V, +/-20%, X5R, 1210 1210 C3225X5R1E106K TDK

C11, C22, C23 3 1uF CAP, CERM, 1uF, 25V, +/-10%, X5R, 0805 0805 08053D105KAT2A AVX

C12 1 470pF CAP, CERM, 470pF, 100V, +/-5%, X7R, 0603 0603 06031C471JAT2A AVX C13 1 100pF CAP, CERM, 100pF, 50V, +/-5%, C0G/NP0, 0603 0603 C1608C0G1H101J TDK C14 1 22uF CAP, AL, 22uF, 25V, +/-20%, 0.7 ohm, SMD SMTRadial C EEE-FK1E220R Panasonic

C15, C16 2 0.47uF CAP, CERM, 0.47uF, 16V, +/-10%, X7R, 0603 0603 C0603C474K4RACTU Kemet

C18 1 0.01uF CAP, CERM, 0.01uF, 50V, +/-5%, X7R, 0603 0603 C0603C103J5RACTU Kemet C19 1 47pF CAP, CERM, 47pF, 50V, +/-5%, C0G/NP0, 0603 0603 06035A470JAT2A AVX C20 1 1uF CAP, CERM, 1uF, 16V, +/-10%, X5R, 0603 0603 C0603C105K4PACTU Kemet C21 1 0.047uF CAP, CERM, 0.047 µF, 50 V, +/- 10%, X7R, 0603 0603 GRM188R71H473KA61D Murata C24 1 0.039uF CAP, CERM, 0.039 µF, 25 V, +/- 10%, X7R, 0603 0603 06033C393KAT2A AVX

C25, C32 2 1000pF CAP, CERM, 1000pF, 2000V, +/-10%, X7R, 1210 1210 C1210C102KGRACTU Kemet

C26, C27, C28, C29, C37,

C38

6 0.01uF CAP, CERM, 0.01uF, 100V, +/-10%, X7R, 0603 0603 06031C103KAT2A AVX

C30, C31 2 1000pF CAP, CERM, 1000pF, 100V, +/-10%, X7R, 0603 0603 06031C102KAT2A AVX C33, C35 2 47uF CAP, AL, 47uF, 63V, +/-20%, 0.65 ohm, SMD SMT Radial F EEE-FK1J470P Panasonic

C39 1 2.2uF CAP, CERM, 2.2 µF, 50 V, +/- 10%, X5R, 0805 0805 C2012X5R1H225K125AB TDK

C40, C41 2 0.1uF CAP, CERM, 0.1 µF, 50 V, +/- 10%, X7R, 0603 0603 06035C104KAT2A AVX

D1 1 200V Diode, Ultrafast, 200V, 1A, SMA SMA MURA120T3G ON Semiconductor

D2, D5 2 100V Diode, Switching, 100V, 0.2A, SOD-123 SOD-123 MMSD4148T1G ON Semiconductor

D3 1 Yellow LED, Yellow, SMD Power TOPLED LY E6SF-AABA-46-1-Z OSRAM

D4, D6, D7 3 30V Diode, Schottky, 30V, 0.2A, SOT-23 SOT-23 BAT54S-7-F Diodes Inc.

D8, D9, D10, D11, D12,

D13, D14, D15

8 100V Diode, Schottky, 100V, 3A, SMC SMC B3100-13-F Diodes Inc.

D16 1 LED, Orange, SMD Power TOPLED LO E6SF-ABCB-24-1-Z OSRAM

D17, D19 2 58V Diode, TVS, Uni, 58V, 400W, SMA SMA SMAJ58A Diodes Inc.

D18 1 Orange LED, Orange, SMD Power TOPLED LO E6SF-ABCB-24-1-Z OSRAM D20 1 Diode, Schottky, 100V, 0.15A, SOD-123 SOD-123 BAT46W-7-F Diodes Inc.

D21, D22 2 100V Diode, Schottky, 100V, 0.15A, SOD-123 SOD-123 BAT46W-7-F Diodes Inc.

H1, H2, H3, H4 4 Bumpon, Hemisphere, 0.375 X 0.235, Black Black Bumpon SJ61A2 3M

Bill of Materials

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Table 4. TPS2378EVM-602 BOM (continued)

Designator Quantity Value Description Package Reference Part Number Manufacturer

J1 1 Terminal Block, 6A, 3.5mm Pitch, 2-Pos, TH 7.0x8.2x6.5mm ED555/2DS On-Shore Technology

J2, J5, J7, J11 4 Header, 100mil, 2x1, Gold plated, TH Header,2x1, 100mil 5-146261-1 TE Connectivity

J3, J4 2 RJ-45, Right Angle, No LED, tab up RJ-45 Jack 1-406541-1 AMP

J6 1

Header, TH, 100mil, 4x1, Gold plated, 230 mil above insulator

4x1 Header TSW-104-07-G-S Samtec

L1 1 3.3uH

Inductor, Shielded Drum Core, Ferrite, 3.3uH, 1.9A,

0.08 ohm, SMD

LPS4018 LPS4018-332MLB Coilcraft

L2 1 400nH

Inductor, Shielded, Composite, 400nH, 12.5A, 0.01 ohm, SMD

4x2.1x4mm XAL4020-401MEB Coilcraft

L3, L4, L5, L6 4 100 ohm 4A Ferrite Bead, 100 ohm @ 100MHz, SMD 0805 MPZ2012S101A Murata

Q1 1 150V MOSFET, N-CH, 150V, 4.6A, PQFN08A PQFN08A FDMS86252 Fairchild Semiconductor

Q2, Q4 2 0.25V Transistor, PNP, 40V, 0.2A, SOT-23 SOT-23 MMBT3906 Fairchild Semiconductor

Q3, Q8, Q9 3 100V MOSFET, N-CH, 100V, 26A, PowerPAK SO-8 PowerPAK SO-8 FDMS86105 Fairchild Semiconductor

Q5 1 0.25V Transistor, NPN, 140V, 0.6A, SOT-23 SOT-23 MMBT5550LT1G ON Semiconductor

Q6, Q7 2 100V MOSFET, N-CH, 100V, 0.17A, SOT-23 SOT-23 BSS123 Fairchild Semiconductor

Q10 1 40V MOSFET, N-CH, 40 V, 15 A, SON 5x6mm SON 5x6mm CSD18504Q5A Texas Instruments

R1 1 39k RES, 39k ohm, 5%, 0.25W, 1206 1206 CRCW120639K0JNEA Vishay-Dale R2 1 4.7 RES, 4.7 ohm, 5%, 0.1W, 0603 0603 CRCW06034R70JNEA Vishay-Dale

R3, R47, R54 3 10.0k RES, 10.0 k, 1%, 0.1 W, 0603 0603 CRCW060310K0FKEA Vishay-Dale

R4 1 0.1 RES, 0.1, 1%, 2 W, 2512 2512 CSRN2512FKR100 Stackpole Electronics Inc R5 1 1.00k RES, 1.00k ohm, 1%, 0.1W, 0603 0603 CRCW06031K00FKEA Vishay-Dale R6 1 10 RES, 10 ohm, 5%, 1W, 2512 2512 ERJ-1TYJ100U Panasonic R7 1 20.0 RES, 20.0 ohm, 1%, 0.1W, 0603 0603 CRCW060320R0FKEA Vishay-Dale R8 1 20.0 RES, 20.0 ohm, 1%, 0.125W, 0805 0805 CRCW080520R0FKEA Vishay-Dale

R9, R12 2 121k RES, 121k ohm, 1%, 0.1W, 0603 0603 CRCW0603121KFKEA Vishay-Dale

R10 1 2.61k RES, 2.61k ohm, 1%, 0.1W, 0603 0603 CRCW06032K61FKEA Vishay-Dale

R11, R18, R19, R38, R39 5 10.0k RES, 10.0k ohm, 1%, 0.1W, 0603 0603 CRCW060310K0FKEA Vishay-Dale

R13 1 4.22k RES, 4.22k ohm, 1%, 0.1W, 0603 0603 CRCW06034K22FKEA Vishay-Dale R14 1 0 RES, 0 ohm, 5%, 0.1W, 0603 0603 CRCW06030000Z0EA Vishay-Dale R15 1 7.50k RES, 7.50k ohm, 1%, 0.1W, 0603 0603 ERJ-3EKF7501V Panasonic R16 1 80.6k RES, 80.6k ohm, 1%, 0.1W, 0603 0603 CRCW060380K6FKEA Vishay-Dale R17 1 3.83k RES, 3.83k ohm, 1%, 0.1W, 0603 0603 CRCW06033K83FKEA Vishay-Dale R20 1 61.9k RES, 61.9k ohm, 1%, 0.1W, 0603 0603 CRCW060361K9FKEA Vishay-Dale

R21, R40, R41, R48, R56 5 100k RES, 100k ohm, 1%, 0.1W, 0603 0603 CRCW0603100KFKEA Vishay-Dale

R22 1 1.21Meg RES, 1.21 M, 1%, 0.1 W, 0603 0603 CRCW06031M21FKEA Vishay-Dale R23 1 49.9k RES, 49.9k ohm, 1%, 0.1W, 0603 0603 CRCW060349K9FKEA Vishay-Dale R24 1 200k RES, 200 k, 1%, 0.1 W, 0603 0603 CRCW0603200KFKEA Vishay-Dale R25 1 6.81k RES, 6.81 k, 1%, 0.1 W, 0603 0603 CRCW06036K81FKEA Vishay-Dale

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Bill of Materials

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TPS2378EVM-602 Evaluation Module

Table 4. TPS2378EVM-602 BOM (continued)

Designator Quantity Value Description Package Reference Part Number Manufacturer

R26 1 7.5k RES, 7.5k ohm, 5%, 0.1W, 0603 0603 CRCW06037K50JNEA Vishay-Dale R27 1 2.00k RES, 2.00 k, 1%, 0.1 W, 0603 0603 CRCW06032K00FKEA Vishay-Dale

R28, R29, R30, R31, R32,

R33, R34, R35

8 75.0 RES, 75.0 ohm, 1%, 0.1W, 0603 0603 CRCW060375R0FKEA Vishay-Dale

R36, R37 2 5.6k RES, 5.6k ohm, 5%, 1W, 2512 2512 ERJ-1TYJ562U Panasonic

R42 1 30.1k RES, 30.1k ohm, 1%, 0.1W, 0603 0603 CRCW060330K1FKEA Vishay-Dale

R44, R52 2 63.4 RES, 63.4 ohm, 1%, 0.125W, 0805 0805 CRCW080563R4FKEA Vishay-Dale

R45 1 8.87k RES, 8.87k ohm, 1%, 0.1W, 0603 0603 CRCW06038K87FKEA Vishay-Dale R46, R53 2 49.9k RES, 49.9 k, 1%, 0.1 W, 0603 0603 CRCW060349K9FKEA Vishay-Dale R49, R55 2 24.9k RES, 24.9k ohm, 1%, 0.1W, 0603 0603 CRCW060324K9FKEA Vishay-Dale

R51 1 78.7k RES, 78.7k ohm, 1%, 0.125W, 0805 0805 ERJ-6ENF7872V Panasonic

R57 1 12.1k RES, 12.1 k, 1%, 0.1 W, 0603 0603 CRCW060312K1FKEA Vishay-Dale

R58 1 33.2k RES, 33.2 k, 1%, 0.1 W, 0603 0603 CRCW060333K2FKEA Vishay-Dale

R60 1 47.5k RES, 47.5 k, 1%, 0.1 W, 0603 0603 CRCW060347K5FKEA Vishay-Dale

R61 1 1.43k RES, 1.43 k, 1%, 0.1 W, 0603 0603 CRCW06031K43FKEA Vishay-Dale R62, R63 2 25.5k RES, 25.5 k, 1%, 0.1 W, 0603 0603 CRCW060325K5FKEA Vishay-Dale

SH-J1, SH-J2, SH-J3, SH-J4 4 1x2 Shunt, 100mil, Gold plated, Black Shunt 969102-0000-DA 3M

T1 1 62uH Transformer, 62uH, SMT 26.4x13.7x32mm 750315775 Wurth Elektronik T2 1 1.2mH Transformer, Gate Drive, 1.2mH, SMT 9.02x7.62x8.64mm PA0184NLT PulseEngineering T3 1 350uH TRANSFORMER/CMC MOD, GIGABIT POE+, SMT 12.2X6.6X18.16 mm H6096NL Pulse Engineering

TP1, TP3, TP5, TP6, TP8,

TP9, TP10, TP11, TP12,

TP13, TP14, TP15, TP17,

TP20

14 SMT Test Point, Miniature, SMT Testpoint_Keystone_Miniature 5015 Keystone

TP2, TP4, TP7, TP16, TP18,

TP19

6 Test Point, Miniature, SMT Test Point, Miniature, SMT 5019 Keystone

U1, U7 2 Optocoupler, 3.75kV RMS, SMT Mini Flat Package HMHA2801A Fairchild Semiconductor

U2 1

PRECISION PROGRAMMABLE REFERENCE, DBV0005A

DBV0005A TL431AIDBV Texas Instruments

U3, U4 2

IEEE 802.3at PoE High-Power PD Interface, DDA0008E

DDA0008E TPS2378DDA Texas Instruments

U5, U8 2 Optocoupler, 5kV RMS, SMT DIP-4L Gullwing FOD817DS Fairchild Semiconductor

U6 1

Advanced Active Clamp PWM Controller with Current Control, -40 to +125 degC, 20-pin TSSOP (PW), Green (RoHS & no Sb/Br)

PW0020A UCC2897APW Texas Instruments

U9 1 SUPPLY-VOLTAGE SUPERVISOR, DGK0008A DGK0008A TL7700CDGKR Texas Instruments

FID1, FID2, FID3 0 Fiducial mark. There is nothing to buy or mount. Fiducial N/A N/A

J8 0 Receptacle, 100mil, 4x1, TH 4x1 Receptacle 76308-204LF FCI

J9, J10 0 Receptacle 100mil 2x1, Tin, TH Receptacle, 2x1, 100mil, Tin PPTC021LFBN-RC Sullins Connector Solutions

R43 0 0 RES, 0 ohm, 5%, 0.1W, 0603 0603 CRCW06030000Z0EA Vishay-Dale

Bill of Materials

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SLVUAG7A–May 2015 –Revised July 2017

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TPS2378EVM-602 Evaluation Module

Table 4. TPS2378EVM-602 BOM (continued)

Designator Quantity Value Description Package Reference Part Number Manufacturer

R50 0 20.0k RES, 20.0k ohm, 1%, 0.1W, 0603 0603 CRCW060320K0FKEA Vishay-Dale

R59 0 100 RES, 100, 1%, 0.1 W, 0603 0603 CRCW0603100RFKEA Vishay-Dale

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Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Original (May 2015) to A Revision ........................................................................................................... Page

• Changed T1 transformer in the BOM from PA4036NL (Pulse Engineering), to 750315775 (Wurth Elektronik). ........... 15

SLVUAG7A–May 2015–Revised July 2017

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Revision History

STANDARD TERMS FOR EVALUATION MODULES

1. Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein. User's acceptance of the EVM is expressly subject to the following terms.

1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions set forth herein but rather shall be subject to the applicable terms that accompany such Software

1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned, or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production system.

2 Limited Warranty and Related Remedies/Disclaimers:

2.1 These terms do not apply to Software. The warranty, if any, for Software is covered in the applicable Software License Agreement.

2.2 TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM to User. Notwithstanding the foregoing, TI shall not be liable for a nonconforming EVM if (a) the nonconformity was caused by neglect, misuse or mistreatment by an entity other than TI, including improper installation or testing, or for any EVMs that have been altered or modified in any way by an entity other than TI, (b) the nonconformity resulted from User's design, specifications or instructions for such EVMs or improper system design, or (c) User has not paid on time. Testing and other quality control techniques are used to the extent TI deems necessary. TI does not test all parameters of each EVM. User's claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects in the EVMs within ten (10) business days after delivery, or of any hidden defects with ten (10) business days after the defect has been detected.

2.3 TI's sole liability shall be at its option to repair or replace EVMs that fail to conform to the warranty set forth above, or credit User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty. If TI elects to repair or replace such EVM, TI shall have a reasonable time to repair such EVM or provide replacements. Repaired EVMs shall be warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day warranty period.

3 Regulatory Notices:

3.1 United States

3.1.1 Notice applicable to EVMs not FCC-Approved:

FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product. This kit is not a finished product and when assembled may not be resold or otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference. Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter.

3.1.2 For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant:

CAUTION

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

FCC Interference Statement for Class A EVM devices

NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

FCC Interference Statement for Class B EVM devices

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

3.2 Canada

3.2.1 For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210 or RSS-247

Concerning EVMs Including Radio Transmitters:

This device complies with Industry Canada license-exempt RSSs. Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may

cause undesired operation of the device.

Concernant les EVMs avec appareils radio:

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

Concerning EVMs Including Detachable Antennas:

Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device.

Concernant les EVMs avec antennes détachables

Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur

3.3 Japan

3.3.1 Notice for EVMs delivered in Japan: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 日本国内に

輸入される評価用キット、ボードについては、次のところをご覧ください。

http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page

3.3.2 Notice for Users of EVMs Considered “Radio Frequency Products” in Japan: EVMs entering Japan may not be certified by TI as conforming to Technical Regulations of Radio Law of Japan.

If User uses EVMs in Japan, not certified to Technical Regulations of Radio Law of Japan, User is required to follow the instructions set forth by Radio Law of Japan, which includes, but is not limited to, the instructions below with respect to EVMs (which for the avoidance of doubt are stated strictly for convenience and should be verified by User):

1. 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。http:/

/www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page

3.4 European Union

3.4.1 For EVMs subject to EU Directive 2014/30/EU (Electromagnetic Compatibility Directive): This is a class A product intended for use in environments other than domestic environments that are connected to a

low-voltage power-supply network that supplies buildings used for domestic purposes. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

4 EVM Use Restrictions and Warnings:

4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.

4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information related to, for example, temperatures and voltages.

4.3 Safety-Related Warnings and Restrictions:

4.3.1 User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or property damage. If there are questions concerning performance ratings and specifications, User should contact a TI field representative prior to connecting interface electronics including input power and intended loads. Any loads applied outside of the specified output range may also result in unintended and/or inaccurate operation and/or possible permanent damage to the EVM and/or interface electronics. Please consult the EVM user guide prior to connecting any load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative. During normal operation, even with the inputs and outputs kept within the specified allowable ranges, some circuit components may have elevated case temperatures. These components include but are not limited to linear regulators, switching transistors, pass transistors, current sense resistors, and heat sinks, which can be identified using the information in the associated documentation. When working with the EVM, please be aware that the EVM may become very warm.

4.3.2 EVMs are intended solely for use by technically qualified, professional electronics experts who are familiar with the dangers and application risks associated with handling electrical mechanical components, systems, and subsystems. User assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees, affiliates, contractors or designees. User assumes all responsibility and liability to ensure that any interfaces (electronic and/or mechanical) between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electrical shock hazard. User assumes all responsibility and liability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors or designees.

4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal, state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local requirements.

5. Accuracy of Information: To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate as possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as accurate, complete, reliable, current, or error-free.

6. Disclaimers:

6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY MATERIALS PROVIDED WITH THE EVM (INCLUDING, BUT NOT LIMITED TO, REFERENCE DESIGNS AND THE DESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL FAULTS." TI DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT NOT LIMITED TO ANY EPIDEMIC FAILURE WARRANTY OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADE SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS.

6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS SHALL BE CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANY OTHER INDUSTRIAL OR INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRD PARTY, TO USE THE EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANY INVENTION, DISCOVERY OR IMPROVEMENT, REGARDLESS OF WHEN MADE, CONCEIVED OR ACQUIRED.

7. 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.

8. Limitations on Damages and Liability:

8.1 General Limitations. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE, INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESE TERMS OR THE USE OF THE EVMS , REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITED TO, COST OF REMOVAL OR REINSTALLATION, ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, RETESTING, OUTSIDE COMPUTER TIME, LABOR COSTS, LOSS OF GOODWILL, LOSS OF PROFITS, LOSS OF SAVINGS, LOSS OF USE, LOSS OF DATA, OR BUSINESS INTERRUPTION. NO CLAIM, SUIT OR ACTION SHALL BE BROUGHT AGAINST TI MORE THAN TWELVE (12) MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS OCCURRED.

8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY USE OF AN EVM PROVIDED HEREUNDER, INCLUDING FROM ANY WARRANTY, INDEMITY OR OTHER OBLIGATION ARISING OUT OF OR IN CONNECTION WITH THESE TERMS, , EXCEED THE TOTAL AMOUNT PAID TO TI BY USER FOR THE PARTICULAR EVM(S) AT ISSUE DURING THE PRIOR TWELVE (12) MONTHS WITH RESPECT TO WHICH LOSSES OR DAMAGES ARE CLAIMED. THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT.

9. Return Policy. Except as otherwise provided, TI does not offer any refunds, returns, or exchanges. Furthermore, no return of EVM(s) will be accepted if the package has been opened and no return of the EVM(s) will be accepted if they are damaged or otherwise not in a resalable condition. If User feels it has been incorrectly charged for the EVM(s) it ordered or that delivery violates the applicable order, User should contact TI. All refunds will be made in full within thirty (30) working days from the return of the components(s), excluding any postage or packaging costs.

10. Governing Law: These terms and conditions shall be governed by and interpreted in accordance with the laws of the State of Texas, without reference to conflict-of-laws principles. User agrees that non-exclusive jurisdiction for any dispute arising out of or relating to these terms and conditions lies within courts located in the State of Texas and consents to venue in Dallas County, Texas. Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court.

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

IMPORTANT NOTICE FOR TI DESIGN INFORMATION AND RESOURCES

Texas Instruments Incorporated (‘TI”) technical, application or other design advice, services or information, including, but not limited to, reference designs and materials relating to evaluation modules, (collectively, “TI Resources”) are intended to assist designers who are developing applications that incorporate TI products; by downloading, accessing or using any particular TI Resource in any way, you (individually or, if you are acting on behalf of a company, your company) agree to use it solely for this purpose and subject to the terms of this Notice.

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Texas Instruments: TPS2378EVM-602

Texas Instruments TPS2378EVM-602 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual