User's Guide
SLVUA27A–January 2014–Revised March 2014
TPS23753AEVM-235 Evaluation Module
This user’s guide describes the TPS23753A evaluation module (EVM) (TPS23753AEVM-235). The
TPS23753AEVM-235 contains evaluation and reference circuitry for the TPS23753A device. The
TPS23753A device is an IEEE 802.3-2005 compliant, powered-device (PD) controller and power supply
controller optimized for isolated converter topologies. TPS23753AEVM-235 is targeted at a high efficiency
10-W PD solution.
Contents
1 Introduction ................................................................................................................... 2
1.1 Features.............................................................................................................. 2
1.2 Applications.......................................................................................................... 2
2 Electrical Specifications..................................................................................................... 2
3 Description.................................................................................................................... 3
4 Schematic..................................................................................................................... 4
5 General Configuration and Description ................................................................................... 5
5.1 Physical Access..................................................................................................... 5
5.2 Test Setup ........................................................................................................... 5
6 TPS23753AEVM-235 Performance Data................................................................................. 6
6.1 Startup................................................................................................................ 6
6.2 Transient Response................................................................................................ 6
6.3 Efficiency............................................................................................................. 7
7 EVM Assembly Drawings and Layout Guidelines ....................................................................... 8
7.1 PCB Drawings....................................................................................................... 8
7.2 Layout Guidelines ................................................................................................. 11
7.3 EMI Containment.................................................................................................. 12
8 Bill of Materials ............................................................................................................. 13
List of Figures
1 TPS23753AEVM-235 Schematic.......................................................................................... 4
2 Typical TPS23753AEVM-235 Test Setup ................................................................................ 5
3 Startup Response to Full Load (2 A) for a 48-V Input .................................................................. 6
4 Transient Response from 1 to 2 A for a 48-V Input..................................................................... 6
5 Efficiency of the TPS23753AEVM-235.................................................................................... 7
6 Top-Side Component Placement.......................................................................................... 8
7 Top-Side Routing ............................................................................................................ 8
8 Layer 2 Routing .............................................................................................................. 9
9 Layer 3 Routing .............................................................................................................. 9
10 Bottom-Side Routing....................................................................................................... 10
11 Bottom Component Placement........................................................................................... 10
List of Tables
1 TPS23753AEVM-235 Electrical and Performance Specifications at 25°C........................................... 2
2 Connector Functionality..................................................................................................... 5
3 Test Points.................................................................................................................... 5
4 TPS23753AEVM-235 BOM .............................................................................................. 13
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SLVUA27A–January 2014–Revised March 2014 TPS23753AEVM-235 Evaluation Module
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