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3 General Use Features

3.1 EVM Input/Output Connectors and Switches

Table 3-1

 lists the EVM input and output connectors on the mother board.

Table 3-1. EVM Input/Output Connectors

Connector or

Switch

Label

Description

S1

RESET

Button to send a hardware reset signal to the TPS23882B1

J1

J1

DC power supply screw jack. (44–57 VDC). Use a 48 VDC (nominal) for type 1 and 54 VDC (nominal) for
type 2, 3, and 4 PSE operation.

J2

J2

Ribbon cable connection to USB2ANY adapter

J3

J3

LaunchPad control (mates with LaunchPad J1)

J4

J4

LaunchPad I

2

C (mates with LaunchPad J2)

J5

J5

LaunchPad power (onboard, mates with LaunchPad J6)

J6

J6

TPS23882B1EVM-008 control (mates with TPS23882B1EVM-008 J3)

J17

J17

TPS23882B1EVM-008 Channel 5–8 (mates with TPS23882B1EVM-008 J2)

J18

J18

TPS23882B1EVM-008 Channel 1–4 (mates with TPS23882B1EVM-008 J1)

J22

J22

Two-pair port 1 data only

J19

2 Pair Port 1

Two-pair port 1 power and data

J23

J23

Two-pair port 2 data only

J20

2 Pair Port 2

Two-pair port 2 power and data

J11

J11

Two-pair port 3 data only

J8

2 Pair Port 3

Two-pair port 3 power and data

J10

J10

Two-pair port 4 data only

J7

2 Pair Port 4

Two-pair port 4 power and data

J31

J31

Two-pair port 5 data only

J32

2 Pair Port 5

Two-pair port 5 power and data

J30

J30

Two-pair port 6 data only

J33

2 Pair Port 6

Two-pair port 6 power and data

J24

J24

Two-pair port 7 data only

J21

2 Pair Port 7

Two-pair port 7 power and data

J12

J12

Two-pair port 8 data only

J9

2 Pair Port 8

Two-pair port 8 power and data

J29

J29

Chassis ground tie point

3.2 EVM LEDs

Table 3-2

 lists the motherboard LEDs and their descriptions.

Table 3-2. EVM LEDs

LED

Color

Label

Description

D1

GREEN

48 V

48-V ON indicator

D13

BLUE

D13

Two-pair port 1 power is ON. For J19 supplier #1 (see the bill of materials 

(BOM)

), J19 internal port LED is

active. For supplier #2, D13 is active.

D15

BLUE

D15

Two-pair port 2 power is ON. For J20 supplier #1 (see the 

BOM

), J20 internal port LED is active. For

supplier #2, D15 is active.

D14

BLUE

D14

Two-pair port 3 power is ON. For J8 supplier #1 (see the 

BOM

), J8 internal port LED is active. For supplier

#2, D14 is active.

D12

BLUE

D12

Two-pair port 4 power is ON. For J7 supplier #1 (see the 

BOM

), J7 internal port LED is active. For supplier

#2, D12 is active.

D19

BLUE

D19

Two-pair port 5 power is ON. For J32 supplier #1 (see the 

BOM

), J32internal port LED is active. For

supplier #2, D19 is active.

www.ti.com

General Use Features

SLVUC36 – APRIL 2021

Submit Document Feedback

TPS23882B1EVM: PoE, PSE, TPS23882B1

Evaluation Module

7

Copyright © 2021 Texas Instruments Incorporated

Summary of Contents for TPS23882B1EVM

Page 1: ...with I2C Monitoring 5 2 6 Advanced Test Setup Using MSP EX430FR5969 LaunchPad 6 3 General Use Features 7 3 1 EVM Input Output Connectors and Switches 7 3 2 EVM LEDs 7 3 3 EVM Test Points 8 3 4 EVM Tes...

Page 2: ...1000BASE T gigabit Ethernet data pass through Single DC power supply input Onboard 3 3 V regulator Onboard I2C interface to the TPS23882B1 device from either USB2ANY or MSP EXP430FR5969 Port ON statu...

Page 3: ...ides galvanic isolation between the PoE power side and host side using digital isolators ISO7241CD The host side power is provided either from J2 of the mother board from USB2ANY or J5 of the motherbo...

Page 4: ...wer level and power on the board without the USB2ANY or MSP EXP430FR5969 connected Figure 2 1 illustrates the basic setup using autonomous mode TPS2373 4EVM 758 Class 3 4 Power Supply J7 J1 32 J33 TPS...

Page 5: ...SB2ANY TPS2373 4EVM 758 Class 3 4 Positive Power Supply J7 J1 32 J33 TPS23882EVM 008 J8 J20 J19 D1 J2 USB2ANY BOOST PSEMTHR 097 Ribbon Cable xxx xxx xx xx xx xxx xxx xxx xx xx xxx xxx PC USB CABLE Eth...

Page 6: ...EXP430FR5969 J21 J9 Ethernet Cable Positive Negative Figure 2 3 Advanced Setup Using LaunchPad CAUTION If wanting to run TPS23882B1 in semi auto mode remove the jumper installed on J5 of the TPS23882B...

Page 7: ...r port 5 data only J32 2 Pair Port 5 Two pair port 5 power and data J30 J30 Two pair port 6 data only J33 2 Pair Port 6 Two pair port 6 power and data J24 J24 Two pair port 7 data only J21 2 Pair Port...

Page 8: ...GND VPWR ground TP4 WHT SDA I2C Data from LaunchPad and USB TO GPIO TP5 WHT SCL I2C Clock from LaunchPad and USB TO GPIO TP6 WHT PSE_SDAO I2C data out from TPS23882B1 TP7 WHT PSE_SCL I2C clock to TPS2...

Page 9: ...1 2 P4 Two pair port 4 LED bias J26 1 2 P5 Two pair port 5 LED bias J25 1 2 P6 Two pair port 6 LED bias J14 1 2 P7 Two pair port 7 LED bias J13 1 2 P8 Two pair port 8 LED bias Daughterboard TPS23882B1...

Page 10: ...e default device address in the GUI is set to 0x20 which matches the default configuration of the EVM J4 on the daughter card is installed with jumpers The GUI sets the TPS23882B1 in configuration B m...

Page 11: ...neering View On the page displayed in Figure 4 4 each port can be configured separately by clicking each RJ45 connector By default the TPS23882B1 is configured in OFF Mode Each port can be configured...

Page 12: ...45 connector If the port is configured in Auto Mode the port will turn on automatically by the PSE device after connecting a valid PD If not configured in Auto Mode a port enable command is required T...

Page 13: ...Figure 4 5 Register Map www ti com TPS23882B1 GUI Setup SLVUC36 APRIL 2021 Submit Document Feedback TPS23882B1EVM PoE PSE TPS23882B1 Evaluation Module 13 Copyright 2021 Texas Instruments Incorporated...

Page 14: ...e Composer Studio 7 2 0 2 OK the workspace location and CCS starts 3 Import the project Project Import CCS Projects make sure you are in CCS Edit mode 4 Navigate to the project location then click the...

Page 15: ...Semi Auto UART Transmission Status www ti com TPS23882B1 GUI Setup SLVUC36 APRIL 2021 Submit Document Feedback TPS23882B1EVM PoE PSE TPS23882B1 Evaluation Module 15 Copyright 2021 Texas Instruments In...

Page 16: ...ted in the MSP430 reference code and Figure 4 8 shows the flow chart Basically after configuration the TPS23882B1 handles port detection classification turn on and faults by itself and there is no con...

Page 17: ...ction Event Get Disconnect Status Determine port s Classification Event Get Classification Status Determine port s Power On Port PPM Classification Valid Print Status Fault Event Get Fault Status Dete...

Page 18: ...oard schematics Figure 5 1 BOOST PSEMTHR8 097 Motherboard Schematic Control EVM Schematic Layout Guidelines PCB Assembly and Layer Plots www ti com 18 TPS23882B1EVM PoE PSE TPS23882B1 Evaluation Modul...

Page 19: ...d Schematic Power Ports www ti com EVM Schematic Layout Guidelines PCB Assembly and Layer Plots SLVUC36 APRIL 2021 Submit Document Feedback TPS23882B1EVM PoE PSE TPS23882B1 Evaluation Module 19 Copyri...

Page 20: ...3 5 6 Q6 PSE_D1 PSE_D2 PSE_D3 PSE_D4 PSE_D5 PSE_D6 PSE_D7 PSE_D8 CH1_SEN CH2_SEN CH3_SEN CH4_SEN CH5_SEN CH6_SEN CH7_SEN CH8_SEN CH1_GATE CH2_GATE CH3_GATE CH4_GATE CH5_GATE CH6_GATE CH7_GATE CH8_GATE...

Page 21: ...imize the impact of PCB trace resistance Refer to Figure 5 10 as an example 5 2 3 Ground Plane Spacing and Isolation GND GND1 and EARTH nets Appropriate spacing should be provided between the GND GND1...

Page 22: ...5 6 BOOST PSEMTHR8 097 Motherboard Layer 2 Routing EVM Schematic Layout Guidelines PCB Assembly and Layer Plots www ti com 22 TPS23882B1EVM PoE PSE TPS23882B1 Evaluation Module SLVUC36 APRIL 2021 Subm...

Page 23: ...BOOST PSEMTHR8 097 Motherboard Bottom Side Routing www ti com EVM Schematic Layout Guidelines PCB Assembly and Layer Plots SLVUC36 APRIL 2021 Submit Document Feedback TPS23882B1EVM PoE PSE TPS23882B1...

Page 24: ...ard Top Side Routing Figure 5 11 TPS23882B1EVM 008 Daughterboard Bottom Side Routing EVM Schematic Layout Guidelines PCB Assembly and Layer Plots www ti com 24 TPS23882B1EVM PoE PSE TPS23882B1 Evaluat...

Page 25: ...ard Bottom Side Assembly www ti com EVM Schematic Layout Guidelines PCB Assembly and Layer Plots SLVUC36 APRIL 2021 Submit Document Feedback TPS23882B1EVM PoE PSE TPS23882B1 Evaluation Module 25 Copyr...

Page 26: ...CAP CERM 1000 pF 50 V 10 X7R 0402 0402 885012205061 Wurth Elektronik D1 1 White LED True Green SMD 2 8x3 2mm LT E6SG AABB 35 1 OSRAM D2 1 58V Diode TVS Uni 58 V 93 6 Vc SMC SMC SMCJ58A 13 F Diodes In...

Page 27: ...W AEC Q200 Grade 0 0603 0603 CRCW060347K0JNEA Vishay Dale R6 1 6 04k RES 6 04 k 1 0 1 W AEC Q200 Grade 0 0603 0603 CRCW06036K04FKEA Vishay Dale R10 R13 2 4 7k RES 4 7 k 5 0 1 W AEC Q200 Grade 0 0603 0...

Page 28: ...B SOIC 16 DW0016B ISO7241CDW Texas Instruments U3 1 Single Buffer Driver With Open Drain Output DCK0005A LARGE T R DCK0005A SN74LVC1G07DCKR Texas Instruments C2 C5 C20 0 1 F CAP CERM 1 F 10 V 10 X7R 0...

Page 29: ...y 8 100V MOSFET N CH 100 V 5 A DNH0008A VSONP 8 DNH0008A CSD19538Q3A Texas Instruments None 8 0 2 RES 0 2 1 0 333 W 0805 0805 RL1220S R20 F Susumu Co Ltd 1 124k RES 124 k 1 0 125 W AEC Q200 Grade 0 08...

Page 30: ...J 6ENF2262V Panasonic 0 15 8k RES 15 8 k 1 0 125 W AEC Q200 Grade 0 0805 0805 ERJ 6ENF1582V Panasonic 0 11 0k RES 11 0 k 1 0 125 W AEC Q200 Grade 0 0805 0805 ERJ 6ENF1102V Panasonic 0 7 68k RES 7 68 k...

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