General Configuration and Description
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6
SLVUAG7A – May 2015 – Revised July 2017
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TPS2378EVM-602 Evaluation Module
5
General Configuration and Description
5.1
Physical Access
Table 2
lists the EVM connector functionality. Table 3 describes the test point availability, and describes
the jumper functionality.
Table 2. Connector Functionality
Connector
Label
Description
J1
VOUT
19-V output voltage of the DCDC converter
J2
LED output ON signal
J3
PWR+DATA
PoE input. Connect to PSE power and data source.
J4
DATA
Ethernet data passthrough. Connect to downstream Ethernet device
J5
T2P-VPU1
T2P Pull up voltage of PD1
J6
T2P
T2P output signals for both TPS2378 PDs
J7
T2P-VPU2
T2P Pull up voltage of PD2
J11
Load Delay Disable
Disables load delay
Table 3. Test Points
Test Points
Label
Description
TP1
Output
Output voltage
TP2, TP7
PWRGND
Primary Ground
TP3
DRAIN
Primary FET drain voltage
TP4
PGND
Secondary Ground
TP5
OUT
Primary FET gate voltage
TP6
CS
Current sense voltage
TP8
VBIAS
Aux bias voltage
TP9
LOOP
AC Injector point for measuring loop response
TP10
VREF
Reference voltage
TP11
FB
Opto Feedback voltage
TP12
PAIR12
Voltage on pairs 1 and 2 of the Ethernet cable
TP13
PAIR36
Voltage on pairs 3 and 6 of the Ethernet cable
TP14
PAIR45
Voltage on pairs 4 and 5 of the Ethernet cable
TP15
PAIR78
Voltage on pairs 7 and 8 of the Ethernet cable
TP16
CHGND
Chassis ground
TP17
VDD
Chassis ground
TP18
VSS1
VSS1 pin of PD1
TP19
VSS2
VSS2 pin of PD2
TP20
RL_INHBT
Gate voltage of load delay FET
TP21
SPGND
Load ground
