Texas Instruments BOOST-PSEMTHR-007, User Manual, Page: 1 / 38

1 SLVUBP0A – May 2019 – Revised August 2019
Submit Documentation Feedback
Copyright © 2019, Texas Instruments Incorporated
TPS23881EVM: PoE, PSE, TPS23881 Evaluation Module
User's Guide
SLVUBP0A – May 2019 – Revised August 2019
TPS23881EVM: PoE, PSE, TPS23881 Evaluation Module
This user’s guide describes the evaluation modules (EVM) for the TPS23881 (TPS23881EVM-008 and
BOOST-PSEMTHR-007). The EVM contains evaluation and reference circuitry for the TPS23881. The
TPS23881 is a Power-over-Ethernet (PoE) device for power sourcing equipment (PSE).
Contents
1 Description
....................................................................................................................
2
2 Quick Start
....................................................................................................................
2
3 General Use Features
.......................................................................................................
6
4 TPS23881 Autonomous Operations
......................................................................................
8
5 TPS23881EVM GUI Setup
.................................................................................................
8
6 EVM Schematic, Layout Guidelines, PCB Assembly and Layer Plots
..............................................
17
7 Bill of Materials
.............................................................................................................
28
List of Figures
1 Basic Setup Using USB2ANY
.............................................................................................
4
2 Advanced Setup Using LaunchPad™
....................................................................................
5
3 TPS23881EVM GUI Start-up Window
...................................................................................
9
4 TPS23881EVM GUI Load Firmware 1
..................................................................................
10
5 TPS23881EVM GUI Load Firmware 2
..................................................................................
10
6 Device Configuration and Port Telemetry Page
.......................................................................
11
7 Register Map
...............................................................................................................
12
8 Program Started
............................................................................................................
13
9 Terminal Response With Connected Ports
.............................................................................
14
10 Auto Mode System Software Structure
..................................................................................
16
11 Semi Auto Mode System Software Structure
...........................................................................
17
12 BOOST-PSEMTHR-007 (Motherboard) Schematic: Control
.........................................................
18
13 BOOST-PSEMTHR-007 (Motherboard) Schematic: Power Ports
...................................................
19
14 TPS23881EVM-008 (Daughterboard) Schematic
......................................................................
20
15 BOOST-PSEMTHR-007 (Motherboard) Top Side Assembly
.........................................................
21
16 BOOST-PSEMTHR-007 (Motherboard) Top Side Routing
...........................................................
22
17 BOOST-PSEMTHR-007 (Motherboard) Layer 2 Routing
.............................................................
23
18 BOOST-PSEMTHR-007 (Motherboard) Layer 3 Routing
.............................................................
24
19 BOOST-PSEMTHR-007 (Motherboard) Bottom Side Routing
.......................................................
25
20 TPS23881EVM-008 (Daughterboard) Top Side Assembly
...........................................................
26
21 TPS23881EVM-008 (Daughterboard) Top Side Routing
.............................................................
26
22 TPS23881EVM-008 (Daughterboard) Bottom Side Routing
.........................................................
26
23 TPS23881EVM-008 (Daughterboard) Bottom Side Assembly
.......................................................
27
List of Tables
1 TPS23881EVM Voltage Rail Current Requirements
...................................................................
3
2 EVM Input/Output Connectors
.............................................................................................
6
3 EVM LEDs
....................................................................................................................
6
4 EVM Test Points
.............................................................................................................
7