General Configuration and Description
www.ti.com
6
SLUUBJ1A – February 2017 – Revised June 2017
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
TPS2373-4EVM-758 Evaluation Module
5
General Configuration and Description
5.1
Physical Access
Table 2
lists the EVM connector functionality and
Table 3
describes the test point availability.
Table 4
describes the jumper selections of the EVM.
Table 2. Connector Functionality
Connector
Label
Description
J1
ETHERNET
POWER
PoE input. Connect to PSE power and data source.
J2
DATA
Ethernet data passthrough. Connect to downstream Ethernet device.
J13
Output
Output connector to load.
J3
DC/DC Input
DC/DC converter input bypassing the PoE front-end. Connect a DC
power supply 40-57.
Table 3. Test Points
Test Point
Label
Description
TP1
PAIR 12
Data pair from Pins 1 and 2 of J1
TP2
PAIR 36
Data pair from Pins 3 and 6 of J1
TP3
PAIR 45
Data pair from Pins 4 and 5 of J1
TP4
PAIR 78
Data pair from Pins 7 and 8 of J1
TP5
EARTH
Connect to earth ground when available
TP7
MPS_DUTY
MPS_DUTY pin of the TPS2373-4
TP9, TP10
VDD
Input voltage of PD system
TP11
TPH
TPH output of the TPS2373-4
TP12
TPL
TPL output of the TPS2373-4
TP13
BT
BT output of the TPS2373-4
TP14
PG
Power Good output of the TPS2373-4
TP15, TP25
RTN
Load side return voltage
TP16
AMPS_CTL
AMPS_CTL output voltage
TP17
VSS1
EMI filter return side voltage
TP18
REF
Reference pin output voltage of the TPS2373-4
TP19
VSS
PD side return voltage
TP20
VOUT
Converter output voltage
TP21
VDS
Drain voltage of the primary FET of the converter
TP22
GATE
Gate voltage of the primary FET of the converter
TP23
GND
Secondary ground connection
TP24
VCIN
Bias winding circuit output voltage
TP26
FB
Feedback pin voltage of U2 PWM controller
TP27
VIN
Startup input voltage of U2 (open circuited)
TP28
LOOP
Feedback connection for frequency response measurements
TP29
UVLO_SEL
Select UVLO of U1 (open circuited)
TP30
VCOUT
Output voltage of advanced startup of U1