Description
2
SLUUBQ7 – August 2017
Copyright © 2017, Texas Instruments Incorporated
TPS2388EVM-612: PoE PSE Evaluation Module for TPS2388
Trademarks
LaunchPad, Code Composer Studio are trademarks of Texas Instruments.
All other trademarks are the property of their respective owners.
1
Description
The TPS2388EVM-612 features the octal channel, TPS2388, IEEE 802.3at PoE PSE controller. The EVM
consists of a motherboard (TPS2388EVM-612) and daughter board (TPS2388EVM-016) containing one
TPS2388 device. The TPS2388EVM-612 provides a multi-port base platform interface for TPS2388EVM-
016, MSP-EXP430G2 (LaunchPad™), and USB2ANY (USB Interface Adapter).
1.1
Features
•
Eight IEEE802.3at, Type 2 (30 W) ports with 1000BASE-T (gigabit Ethernet data pass through)
•
Two non-standard, high power ports with 1000BASE-T (gigabit Ethernet data pass through)
•
100% passed Sifos compliance test
•
Single DC power supply input
•
On board 3.3-V regulator
•
On board I
2
C interface to both TPS2388PW devices from either USB2ANY or MSP-EXP430G2.
•
Port ON status LEDs
•
User test points
1.2
Applications
•
Ethernet switches and routers
•
Surveillance VDRs
•
High power PoE
•
PoE pass-through systems
2
Quick Start
2.1
Input Power
2.1.1
Input Power (Labeled VPWR)
DC input voltage is provided through J1 (screw jack). A dc power supply with sufficient current capacity
can power the EVM.
CAUTION
Reverse voltage protection is not provided; ensure that the correct polarity is
applied to J1.
This dc input is labeled
VPWR
in the schematics and is used for port VBUS as well as for the TPS2388
device. The VPWR connections to the PoE ports are not fused. Each two pair port is capable of furnishing
at least 30 W and each four pair port can furnish 60 W.
The minimum PSE port voltage is 44 VDC for type 1 and 50 V for type 2. The nominal dc voltage at
VPWR is 48 VDC for a type 1 and 54 VDC for a type 2. During evaluation, choose the appropriate dc
power supply for the type 1 or type 2 environment.
