Texas Instruments TPS23752EVM-145 EVM: Evaluation Module for TPS23752 User guide

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User's Guide

SLVU753 – July 2012

TPS23752EVM-145: Evaluation Module for TPS23752

This User’s Guide describes the evaluation module (EVM) for the TPS23752 (TPS23752EVM-145). The

TPS23752 is a type 2, Power over Ethernet (PoE) powered device (PD) controller and integrated currentmode DC/DC controller with sleep mode. The TPS23752 is optimized specifically for applications requiring high efficiency over a wide load range.

Contents

Introduction

1.1

..................................................................................................................

Features

.............................................................................................................

1.2

Applications

.........................................................................................................

Electrical Specifications

Description

....................................................................................................

...................................................................................................................

Schematic

....................................................................................................................

General Configuration and Description

..................................................................................

5.1

5.2

Physical Access

Test Setup

....................................................................................................

..........................................................................................................

TPS23752EVM-145 Performance Data

..................................................................................

6.1

Efficiency

............................................................................................................

EVM Assembly Drawings and Layout Guidelines

......................................................................

7.1

7.2

7.3

PCB Drawings

Bill of Materials

......................................................................................................

Layout Guidelines

EMI Containment

................................................................................................

.................................................................................................

.............................................................................................................

List of Figures

TPS23752EVM-145 Schematic

...........................................................................................

TPS23752EVM-145 Schematic (2)

.......................................................................................

Typical TPS23752EVM-145 Test Setup

.................................................................................

PoE End-End Efficiency

....................................................................................................

DC/DC Converter Efficiency

...............................................................................................

DC/DC Converter Light-Load Efficiency

.................................................................................

Top-Side Placement

........................................................................................................

Top-Side Routing

Layer Two Routing

...........................................................................................................

........................................................................................................

Layer Three Routing

......................................................................................................

Bottom-Side Routing

......................................................................................................

Bottom-Side Placement

...................................................................................................

List of Tables

TPS23752EVM-145 Electrical and Performance Specifications

......................................................

Connector Functionality

....................................................................................................

Test Points

...................................................................................................................

Jumpers

......................................................................................................................

TPS23752EVM-145 Bill of Materials

...................................................................................

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Introduction

1 Introduction

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This EVM allows reference circuitry evaluation of the TPS23752 PD controller, DC/DC controller, and sleep mode functionality.

1.1

Features

• High-efficiency synchronous-flyback design including enhanced light-load operation (with synchronous rectifier disable and variable frequency operation)

• Sleep mode capability including PSE DC and Pulsed MPS signature, wake, and status LED

• 24- and 48-V adapter input capability

• Gigabit Ethernet pass-through interface

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

• Robust 100-V, 0.5Ω , internal-hotswap MOSFET

• 5-V, 5-A, 25-W dc output

1.2

Applications

• IEEE 802.3at-compliant devices

• Video and VoIP telephones

• Multiband access points

• Security cameras

• Pico-base stations

2 Electrical Specifications

Table 1. TPS23752EVM-145 Electrical and Performance Specifications

Test Conditions Min Typ Max Unit Parameter

POWER INTERFACE

Input Voltage

Input UVLO, PoE input J1

Input UVLO, adapter J3

Detection voltage

Classification voltage

Classification current

Inrush current-limit

Operating current-limit

DC/DC CONVERTER

Applied to the power pins of connectors J1 or J3

Rising input voltage

Falling input voltage

Rising input voltage

At device terminals

Rclass = 63.4

Ω

1.4

11.9

100

850

18.7

10.1

23.0

180

1200

V mA mA mA

Output voltage

Output current

Output ripple voltage, peak-to-peak

Efficiency, dc-dc converter

Efficiency, end-to-end

Switching frequency

21.6V

≤ Vin ≤ 57 V,

ILOAD ≤ ILOAD (max)

21.6V

≤ Vin ≤ 57 V

Vin = 44 V, ILOAD = 5 A

Vin = 54 V, ILOAD = 5 A

PWM mode

5-V output

4.85

5.00

5.15

225

93%

90%

5.0

275

A mV kHz

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3 Description

Description

The EVM enables full evaluation of the TPS23752 device. Refer to the schematics shown in

Figure 1

and

Figure 2

. Ethernet power is applied from J1 to T1 and is dropped to the diode bridges (D1/D2/D7/D8 or

D3/D4/D9/D10) from the T1 center taps. The series R-C circuits from each center tap help balance the

Ethernet cable impedance and are critical for ESD and EMI/EMC performance. These circuits are terminated at TP7 (EGND) through the high-voltage capacitor, C10. At the output of the diode bridges is the EMI/EMC filter and transient protection for the TPS23752.

Input power can also be applied at J3 from a dc source. EMI/EMC filtering is provided at this connector as well and diode D5 provides reverse-voltage protection. R5 and R10 provide a threshold for the TPS23752

APD pin so that the TPS23752 internal MOSFET is disabled when the voltage at J3 is above approximately 18 V. This ensures that the adapter has priority over the PSE source.

Below the PoE diode bridges in

Figure 1

are four opto-isolated circuits. U1, U2, U3, and associated circuits support the sleep or low-power mode of the TPS23752. The U4 circuit indicates when an adapter or type 2 PoE source is present.

The TPS23752 (U5) PD and dc/dc converter circuitry is shown in

Figure 2

. R23 provides the detection signature and R26 provides the classification (class 4) signature. To the right of the U5 is the switched side of the PD controller. The TPS23752 RTN pin provides inrush limited turn on and charge of the bulk capacitor, C16. During inrush, the TPS23752 dc/dc controller is disabled.

The dc/dc converter is a driven synchronous, isolated flyback topology. The flyback converter operates in either variable-frequency (VFO) or pulse-width modulated (PWM) modes depending on output loading to boost wide load range efficiency. The primary (Q5) and secondary (Q3) switching MOSFETs are driven from the U5 GATE pin. MOSFET gate-drive buffering and phasing is provided by Q6/D16/R32 (primary) and T3/Q4/D18/R38 (secondary), respectively. In addition to Q3, D17 provides secondary side rectification when the converter is in VFO mode. R25/D15/C27/C29 form the auxiliary 12-V output for the U5 dc/dc controller and D13/R22/C19 provide peak voltage clamp protection for Q5.

Output voltage feedback is provided with the U7 and associated error amplifier (U8) circuitry. R46 provides a means for error injection when measuring the frequency response of the converter. This feedback circuit drives the U5 CTL pin providing a voltage proportional to the output load current. The voltage on the CTL pin can also detect the desired mode transition point by comparing this with the voltage on the SRT pin (set by R31 and R35). As output load decreases, the CTL pin voltage also decreases. When CTL crosses the transition point (going into VFO mode), the converter disables Q3 and allows D17 to rectify. This is accomplished with the U5 SRD pin, U6, and Q7/Q8/Q9. In VFO mode, Q9 is

ON and Q8 is OFF. This effectively extinguishes the Q3 gate drive allowing D17 to rectify. When output load increases, the converter goes back to PWM mode and allows Q3 to provide rectification.

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Schematic

4 Schematic

J1 POE INPUT

T1 749022011

1000pF

J2 ETHERNET DATA

PAIR12 TP1

PAIR36 TP2

PAIR45 TP3

PAIR78 TP4

VDD

TP5

FB1 500

0.01uF

C10

1000pF

C3 C4

0.01uF

EGND

TP7

0.01uF

B2100

VDD

1000pF

B2100

D10

B2100

FB3 500

SMAJ58A

0.1uF

VSS

TP6

VSS

Depress to exit sleep

WAKE

R17

392K

R15

VOUT

PC357N4J000F

1 4

R14

15K

2 3

R11

1K Q1

BSS84

PBb

GND

Install for LED

D11

LN1371G

ON=Awake

T2P

VOUT

R21

24.9K

PC357N4J000F

1 4

R19

15K

2 3

BSS84

R18

T2P

GND

Install for LED

D12

LN1371G

ON=Type 2 PSE

SLPB

C12

0.1uF

MODE

R12

15K

R13

15K

PC357N4J000F

4 1

3 2

1.5K

R16

C13

0.47uF

VOUT

SLNb

VOUT

Install to enter sleep

PC357N4J000F

4 1

3 2

1.5K

R20

C14

0.47uF

VOUT

MPSb

VOUT

Remove for DC MPS

Install for pulsed MPS

Figure 1. TPS23752EVM-145 Schematic

ADAPTER

INPUT

21.6V-57V

FB2 500

1000pF

0.1uF

FB4 500

R10

8.87K

D5 B2100

100K

C11

0.01uF

APD www.ti.com

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3.3uH

VDD

TP9

C15

0.1uF

100V

R23

24.9K

D14

LN1371G

R27

6.19K

ON=Sleep or MODE low

R26

63.4 0.1W

APD

R28

34K

T2P

WAKE

TPS23752PWP

1 VDD

2 DEN

3 CLS

4 APD

5 RT

6 T2P

7 SRD

8 CTL

9 LED

10 WAKE

VSS

RTN

ARTN

GATE

SRT

MODE

SLPB

250KHz

VSS

C32

0.47uF

TP14

MODE

SLPB

R35

16.9K

R24

750K

C16

47uF

63V

C17

1uF

100V

R31

100K

TP11

C30

0.1uF

C31

330pF

NOTES

NOT USED

Schematic

C18

1uF

100V

TP12

C29

1uF

C27

22uF

25V

R22

39K

0.25W

C19

0.1uF

100V

D15

1N4148W

D13

MURS120T3G

R25

D16

MBR0530

TP15

Si7898DP

JA4456-DL

C26

2200pF

2KV

R32 43.2

R36

MMBT3906

332

R33

10K R34

0.09

0.5W

TP10

MMBT2907A

VOUT

0.33uH

TP8

C20

47uF

C21

47uF

C22

47uF

C23

330uF

C24

330uF

C25

1uF

J10

5V/5A

GND

D18

BAT54S

SiR422DP

R29

10K

TP13

C28

1000pF

R30

D17

PDS1040

C33 0.47uF

R41

30.1K

TP17

BSS84

R39

R40

20K

R43

10K

C35

DNP

R44

C36

0.022uF

R45

3.65K

PA0184

R37

10K

1 4

Si2304DDS

PC357N4J000F

1 4

C34

0.47uF

2 3

R38

43.2

MMBT3904

TP16

TCMT1107

R47

604

3 2

R48

10K

D19

BAT54S

C38

1uF

TLV431A

C37

0.01uF

R49

41.2K

R51

13.7K

R42

30.1K

R46

49.9

J11

R50

D20

LN1371G

(ON)

Figure 2. TPS23752EVM-145 Schematic (2)

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General Configuration and Description

5 General Configuration and Description

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5.1

Physical Access

Table 2

lists the EVM connector functionality,

Table 3

describes the test point availability, and

Table 4

describes the jumper functionality.

Connector

J10

D11 (GRN)

D12 (GRN)

D20 (GRN)

D14 (GRN)

Label

PWR + DATA

DATA

WAKE

SLP

MODE

T2P

OUTPUT

WAKE

T2P

OUTPUT

D14

Table 2. Connector Functionality

Description

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

Ethernet data pass through. Connect to downstream Ethernet device.

Low voltage on pin 1 with respect to pin 2 indicates that S1 is being depressed.

Momentarily shorting pin 1 to pin 2 causes the TPS23752 to enter sleep mode

Install a shunt on J8 while J6 is shorted to enable pulsed maintain power signature

(MPS). Remove shunt from J8 while J6 is shorted, enabling DC MPS.

Low voltage on pin 1 with respect to pin 2 indicates that a type 2 PSE or an adapter is present

Output connector to load.

Depressing S1 when the TPS23752 is in sleep mode restarts the dc/dc converter.

D11 is ON when S1 is depressed and held

T2P (type 2 PSE) LED. When ON this indicates that a type 2 PSE or an adapter is present.

TPS23752 output powered.

Sleep mode status indicator. D14 is ON when TPS23752 is in sleep mode or when a shunt is installed on J8

TP6

TP8

TP9

TP10

TP11

TP12

TP13

Test Point

TP1

TP2

TP3

TP4

TP5

TP14

TP15

TP16

TP17

TP7

WHT

ORG

WHT

BLK

RED

BLK

ORG

RED

BLK

Color

RED

ORG

RED

ORG

RED

Label

PAIR12

PAIR36

PAIR45

PAIR78

VDD

VSS

VOUT

RTN

SDRN

GND

GATE

DRN

LOOP

CTL

EGND

Table 3. Test Points

Description

Data pair from pins 1 and 2 of J1

Data pair from pins 3 and 6 of J1

Spare pair from pins 4 and 5 of J1

Spare pair from pins 7 and 8 of J1

High-side output from bridge

Low-side output from bridge

Converter output voltage with respect to TP13

Switched low side from TPS23752

Secondary side switching waveform

TPS23752 5-V bias voltage

TPS23752 12-V auxiliary input voltage

Converter output ground with respect to TP8

TPS23752 GATE drive output

Primary side switching waveform

Feedback loop injection point, use with TP8 and TP13

CTL pin input to TPS23752

Earth or chassis ground point

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Jumper

J11

Label

J11

TPS23752EVM-145 Performance Data

Table 4. Jumpers

Description

D11 LED bias jumper. Installing enables WAKE LED.

D12 LED bias jumper. Installing enables T2P LED. Shunt may be removed when making efficiency measurements.

D20 LED bias jumper. Installing enables OUTPUT LED. Shunt may be removed when making efficiency measurements.

5.2

Test Setup

Figure 3

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

Power for the Ethernet device is available at J10 and the pass-through Ethernet data is available at J2.

Ethernet

Device

PSE (Ethernet Cable)

DUT

TPS23752EVM-145

J3 -

GND

J10

VOUT

Wall

Adapter

Figure 3. Typical TPS23752EVM-145 Test Setup

6 TPS23752EVM-145 Performance Data

6.1

Efficiency

Figure 4

Figure 5

, and

Figure 6

illustrate the efficiency of the EVM.

Figure 4

efficiency is measured between the J1 input interface and J10 output connector while

Figure 5

and

Figure 6

are measured between TP5/TP6 and J10 to exclude the diode bridge and Ethernet transformer losses.

Figure 6

demonstrates the light-load efficiency improvement provided by the VFO mode.

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TPS23752EVM-145 Performance Data

1 2 3

Load Current (A)

Figure 4. PoE End-End Efficiency

G001

1 2 3

Load Current (A)

PWM Mode Only

PWM−>VFO Mode

4 5

G002

Figure 5. DC/DC Converter Efficiency

PWM Mode Only

PWM−>VFO Mode

0.2

0.4

0.6

Load Current (A)

0.8

G003

Figure 6. DC/DC Converter Light-Load Efficiency

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7 EVM Assembly Drawings and Layout Guidelines

EVM Assembly Drawings and Layout Guidelines

7.1

PCB Drawings

Figure 7

through

Figure 12

show component placement and layout.

Figure 7. Top-Side Placement

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Figure 8. Top-Side Routing

TPS23752EVM-145: Evaluation Module for TPS23752

EVM Assembly Drawings and Layout Guidelines

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Figure 9. Layer Two Routing

Figure 10. Layer Three Routing

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EVM Assembly Drawings and Layout Guidelines

Figure 11. Bottom-Side Routing

Figure 12. Bottom-Side Placement

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EVM Assembly Drawings and Layout Guidelines

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7.2

Layout Guidelines

Follow power and EMI/ESD best practice guidelines for the layout of the PoE front end. 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 0.1μ F capacitor, and TPS23752 converter input bulk capacitor.

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

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

• Observe spacing consistent with safety standards, like IEC60950, between the 48-V input voltage rails and between the input and an isolated-converter output.

• Place the TPS23752 over split, local ground planes referenced to VSS for the PoE input and to RTN for the converter. Whereas the PoE side may operate without a ground plane, the converter side must have one. Make sure no logic ground and power layers are present 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:

• Pair signals, reducing emissions and noise, especially the paths that carry high-current pulses which include the power semiconductors and magnetics.

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

• Use vertical pairing, where possible.

• 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.

• Maintain proper spacing around the high-voltage sections of the converter.

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EVM Assembly Drawings 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 4-layer PCB, if economically feasible (for better grounding)

• Minimize the amount of copper area associated with input traces (minimizing 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 a ground shield on the input side of the PCB (creating a phantom or literal earth ground)

• Use an LC filter at the 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 an EMI bridge capacitor across isolation boundary (isolated topologies)

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

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

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

• Balance efficiency vs 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)

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Bill of Materials

8 Bill of Materials

MBR0530

PDS1040

BAT54S

SMAJ58A

500

5520252-4

ED555/2DS

PEC02SAAN

3.3uH

0.33uH

BSS84

SiR422DP

MMBT2907A

Si7898DP

MMBT3906

Si2304DDS

MMBT3904

VALUE

1000 pF

0.1 µF

0.47 µF

47 µF

1 µF

47 µF

330 µF

0.01 µF

1 µF

2200 pF

22 µF

1 µF

330 pF

0.1 µF

0.022 µF

1000 pF

0.1 µF

LN1371G

MURS120T3G

1N4148W-7-F

B2100-13-F

COUNT REFDES

2 C1, C10

C12, C30

C13-14, C32-34

C16

C17-18

C20-22

C23-24

C2-5, C11, C37

C25, C38

C26

C27

C29

C31

C35

C36

C6, C8, C28

C7, C9, C15, C19

D11-12, D14, D20

D13

D15

D1-5, D7-10

D16

D17

D18-19

FB1-4

J1-2

J3, J10

J4-9, J11

Q1-2, Q7

TPS23752EVM-145: Evaluation Module for TPS23752

Table 5. TPS23752EVM-145 Bill of Materials

DESCRIPTION

Capacitor, ceramic, 2 kV, X7R, 15%

Capacitor, ceramic, 25 V, X7R, 10%

Capacitor, ceramic, 16 V, X7R, 10%

Capacitor, Aluminum, 63 V, ±20%

Capacitor, ceramic, 100 V, X7R, 10%

Capacitor, ceramic, 10 V, X5R, 15%

Capacitor, aluminum, 6.3 V, 20%

Capacitor, ceramic, 100 V, X7R, 10%

Capacitor, ceramic, 16 V, X7R, 10%

Capacitor, ceramic, 2 kV, X7R, 15%

Capacitor, Aluminum, 25 V, 20%

Capacitor, ceramic, 25 V, X7R, 10%

Capacitor, ceramic, 50 V, C0G, 10%

Capacitor, ceramic, 50 V, X7R, 10%

Capacitor, ceramic, 100 V, X7R, 10%

Capacitor, Ceramic, 100 V, X7R, 10%

Diode, LED, Green, 10 mA, 2.6 mcd

Diode, ultra-fast rectifier, 1 A, 200 V

Diode, signal, 300 mA, 75 V, 350 mW

Diode, Schottky, 2 A, 100 V

Diode, Schottky, 0.5 A, 30 V

Diode, Schottky, 10 A, 40 V

Diode, Dual Schottky, 200 mA, 30 V

Diode, TVS, 58-V, 1W

Bead, ferrite, 2000 mA, 60 m Ω

Connector, jack, modular, 8 POS

Terminal block, 2 pin, 6 A, 3.5 mm

Header, male 2 pin, 100 mil spacing

Inductor, SMT, 1.9 A, 80 m Ω

Inductor, SMT, 19.2 A, 3.52 m Ω

MOSFET, Pch, -50 V, -0.13 A, 10 Ω

MOSFET, NChan, 40 V, 40 A, 6.6 m

Trans, PNP, 40 V, 200 mA, 225 mW

MOSFET, NChannel, 150 V, 4.8 A, 85 m Ω

Trans, PNP, 40 V, 200 mA, 225 mW

MOSFET, N-ch, 30 V, 3.6 A, 60 m Ω

Trans, NPN, 40 V, 200 mA, 225 mW

SOD-123

Power DI 5

SOT323

SMA

1206

0.705 × 0.820 inch

0.27 × 0.25 inch

0.100 inch × 2

4 × 4 mm

5.3 × 5.5 mm

SOT23

PWRPAK S0-8

SOT23

PWRPAK S0-8

SOT23

SIZE

1210

603

0.328 × 0.390 in

1210

0.260 × 0.276 in

603

1812

5 × 5.8 mm

603

805

0.114 × 0.049 in

SMB

SOD-123

SMB

MBR0530T1G

PDS1040-13

BAT54SWT1G

SMAJ58A-13-F

MI1206L501R-10

5520252-4

ED555/2DS

PEC02SAAN

LPS4018-332ML

XAL5030-331ME

BSS84LT1C

SIR422DP-T1-GE3

MMBT2907ALT1G

SI7898DP-T1-E3

MMBT3906LT1G

Si2304DDS

MMBT3904LT1G

PART NUMBER

Std

STD

EEE-FK1J470P

Std

EEE-FK0J331XP

STD

Std

EEE-FK1E220R

STD

LN1371G

MURS120T3G

1N4148W-7-F

B2100-13-F

On Semi

Diodes, Inc

On Semi

Diodes

Steward

AMP

OST

Sullins

Coilcraft

Infineon

Vishay

On Semi

Vishay

On Semi

Vishay

On Semi

Std

STD

Panasonic

On Semi

Diodes

SUPPLIER

STD

Std

Panasonic

STD

Std

Panasonic

STD

Std

Panasonic

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COUNT REFDES

1 R10

5 R11, R15, R18,

R44, R50

R12-14, R19

R1-4, R6-9

R16, R20

R17

R21

R22

R23

R24

R25

VALUE

8.87 k

1 k Ω

R26

R27

R28

R29, R33, R37, R48 10 k Ω

R30 10 Ω

R5, R31

R32, R38

R34

100 k Ω

43.2

0.09

15 k

75 Ω

1.5 k Ω

392 k Ω

24.9 k Ω

39 k

24.9 k Ω

750 k Ω

10 Ω

63.4

6.19 k

34 k Ω

R35

R36

R39

R40

R41, R42

R43

R45

R46

R47

R49

16.9 k

332

0 Ω

20 k

30.1 k Ω

10 k

3.65 k

49.9

604

41.2 k Ω

R51

TP1, TP3, TP5,

TP8, TP11-12

TP14, TP17

13.7 k Ω

KT11P2JM34LFS

749022011 or

H6096NL

JA4456-DL

PA0184

5010

5012

SLVU753 – July 2012

Submit Documentation Feedback

Bill of Materials

Table 5. TPS23752EVM-145 Bill of Materials (continued)

DESCRIPTION

Resistor, chip, 1/16W, 1%

SIZE

603

Resistor, chip, 1/16W, 1%

Resistor, chip, 1/4W, 5%

Resistor, chip, 1/16W, 1%

Resistor, chip, 1/10W, 5%

Resistor, chip, 1/10W, 1%

Resistor, chip, 1/16W, 1%

Resistor, chip, 1W, 5%

Resistor, chip, 1/16W, 1%

Resistor, chip, 1/2W, 1%

Resistor, chip, 1/16W, 1%

Switch, SPST, PB Momentary, Sealed Washable

PoE Plus Gigabit Ethernet Transformer

603

2010

603

805

603

2512

603

1206

603

805

603

0.245 × 0.251 in

S024

Transformer, SMT For PoE/PD, 25 W, 2.8 A

XFMR, SMT gate drive

Test point, red, thru hole

Test point, white, thru hole

0.810 × 1.181 in

0.355 × 0.340 in

0.125 × 0.125 in

PART NUMBER

STD

KT11P2JM34LFS

749022011 or

H6096NL

JA4456-DL

PA0184NL

5010

STD

Std

STD

Std

STD

Std

STD

Std

STD

5012

SUPPLIER

STD

Std

C & K

Wurth Electronics or

Pulse

Coilcraft

Pulse

Keystone

Std

STD

Std

STD

Keystone

TPS23752EVM-145: Evaluation Module for TPS23752

Bill of Materials

COUNT REFDES

5 TP2, TP4, TP10,

TP15-16

3 TP6, TP9, TP13

TP7

U1-4, U6

1 --

VALUE

5013

5011

5016

PC357N4J000F

TPS23752PWP

TCMT1107

TLV431A

Table 5. TPS23752EVM-145 Bill of Materials (continued)

DESCRIPTION

Test point, orange, thru hole

SIZE

0.125 × 0.125 in

Test point, black, thru hole

Test point, SM, 0.150 × 0.090

Photocoupler, 300-600% CTR, 3.75 kV isolation

IC, IEEE 802.3 AT PoE interface & green mode DC-DC controller

IC, photocoupler, 3750 VRMS, 80-160% CTR

IC, shunt regulator, 6 V, 10 mA, 1%

Shunt, black

0.125 × 0.125 in

0.185 × 0.135 in

MF4

HTSSOP

MF4

SOT23-5

100-mil

PCB, 3.5 in × 1.7 in × 0.062 in

PART NUMBER

5013

5011

5016

PC357N4J000F

TPS23752PWP

TCMT1107

TLV431ACDBVR

STC02SYAN

PWR145

SUPPLIER

Keystone

Sharp

Vishay

Sullins Connector

Solutions

Any www.ti.com

TPS23752EVM-145: Evaluation Module for TPS23752

SLVU753 – July 2012

Submit Documentation Feedback

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.

SPACER

【

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:

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,

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

Use of this product only after you obtained the Technical Regulations Conformity Certification as provided in Radio Law of Japan with 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.

Texas Instruments Japan Limited

(address) 24-1, Nishi-Shinjuku 6 chome, Shinjuku-ku, Tokyo, Japan

http://www.tij.co.jp

【ご使用にあたっての注】

本開発キットは技術基準適合証明を受けておりません。

本製品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。

電波法施行規則第 6 条第 1 項第 1 号に基づく平成 18 年 3 月 28 日総務省告示第 173 号で定められた電波暗室等の試験設備でご使用いただく。

実験局の免許を取得後ご使用いただく。

技術基準適合証明を取得後ご使用いただく。

なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。

　　　上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。

日本テキサス・インスツルメンツ株式会社

東京都新宿区西新宿６丁目２４番１号

西新宿三井ビル http://www.tij.co.jp

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:

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.

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.

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.

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

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.

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.

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,

General Statement for EVMs including a radio

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

Caution

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.

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.

• 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

Concerning EVMs including detachable antennas

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

Concernant les EVMs avec antennes détachables

(p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante.

SPACER

【】

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:

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,

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

Texas Instruments Japan Limited

(address) 24-1, Nishi-Shinjuku 6 chome, Shinjuku-ku, Tokyo, Japan

http://www.tij.co.jp

【ご使用にあたっての注】

本開発キットは技術基準適合証明を受けておりません。

本製品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。

電波法施行規則第 6 条第 1 項第 1 号に基づく平成 18 年 3 月 28 日総務省告示第 173 号で定められた電波暗室等の試験設備でご使用いただく。

実験局の免許を取得後ご使用いただく。

技術基準適合証明を取得後ご使用いただく。

なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。

　　　上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。

日本テキサス・インスツルメンツ株式会社

東京都新宿区西新宿６丁目２４番１号

西新宿三井ビル http://www.tij.co.jp

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:

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

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.

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

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

IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.

TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms and conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarily performed.

TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide adequate design and operating safeguards.

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Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional restrictions.

Resale of TI components or services with statements different from or beyond the parameters stated by TI for that component or service voids all express and any implied warranties for the associated TI component or service and is an unfair and deceptive business practice.

TI is not responsible or liable for any such statements.

Buyer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirements concerning its products, and any use of TI components in its applications, notwithstanding any applications-related information or support that may be provided by TI. Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failures, monitor failures and their consequences, lessen the likelihood of failures that might cause harm and take appropriate remedial actions. Buyer will fully indemnify TI and its representatives against any damages arising out of the use of any TI components in safety-critical applications.

In some cases, TI components may be promoted specifically to facilitate safety-related applications. With such components, TI’s goal is to help enable customers to design and create their own end-product solutions that meet applicable functional safety standards and requirements. Nonetheless, such components are subject to these terms.

No TI components are authorized for use in FDA Class III (or similar life-critical medical equipment) unless authorized officers of the parties have executed a special agreement specifically governing such use.

Only those TI components which TI has specifically designated as military grade or “enhanced plastic” are designed and intended for use in military/aerospace applications or environments. Buyer acknowledges and agrees that any military or aerospace use of TI components which have not been so designated is solely at the Buyer's risk, and that Buyer is solely responsible for compliance with all legal and regulatory requirements in connection with such use.

TI has specifically designated certain components which meet ISO/TS16949 requirements, mainly for automotive use. Components which have not been so designated are neither designed nor intended for automotive use; and TI will not be responsible for any failure of such components to meet such requirements.

Products

Audio

Amplifiers

Data Converters

DLP® Products

DSP

Clocks and Timers

Interface www.ti.com/audio amplifier.ti.com

dataconverter.ti.com

www.dlp.com

dsp.ti.com

www.ti.com/clocks interface.ti.com

Applications

Automotive and Transportation www.ti.com/automotive

Communications and Telecom www.ti.com/communications

Computers and Peripherals www.ti.com/computers

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Medical www.ti.com/consumer-apps www.ti.com/energy www.ti.com/industrial www.ti.com/medical

Logic

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OMAP Applications Processors

Wireless Connectivity logic.ti.com

power.ti.com

microcontroller.ti.com

www.ti-rfid.com

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Video and Imaging www.ti.com/omap

TI E2E Community

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Olá! Eu sou um chatbot de IA especificamente treinado para ajudá-lo com o Texas Instruments TPS23752EVM-145 EVM: Evaluation Module for TPS23752 Guia de usuario. Já revisei cuidadosamente o documento e posso ajudá-lo a localizar as informações exatas de que precisa ou explicar o conteúdo de maneira clara e simples. Quer você esteja procurando orientação sobre recursos específicos, etapas de solução de problemas ou uso geral, fique à vontade para fazer suas perguntas. Quanto mais detalhes você fornecer sobre suas preocupações ou necessidades, mais precisamente e eficazmente poderei ajudá-lo!

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