Datasheet

General Configuration and Description

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5 General Configuration and Description

5.1 Physical Access

Table 2 lists the EVM connector functionality, Table 3 describes the test point availability, and Table 4

describes the jumper functionality.

Table 2. Connector Functionality

Connector Label Description

J1 PWR + DATA Power over ethernet (POE) input. Connect to power-sourcing equipment (PSE) power and

data source.

J2 DATA Ethernet data pass through. Connect to downstream Ethernet device.

J5 WAKE Low voltage on pin 1 with respect to pin 2 indicates that S1 is being depressed.

J6 SLP Momentarily shorting pin 1 to pin 2 causes the TPS23752 to enter sleep mode

J8 MODE Install a shunt on J8 while J6 is shorted to enable pulsed maintain power signature

(MPS). Remove shunt from J8 while J6 is shorted, enabling DC MPS.

J9 T2P Low voltage on pin 1 with respect to pin 2 indicates that a type 2 PSE or an adapter is

present

J10 OUTPUT Output connector to load.

S1 WAKE Depressing S1 when the TPS23752 is in sleep mode restarts the dc/dc converter.

D11 (GRN) WAKE D11 is ON when S1 is depressed and held

D12 (GRN) T2P T2P (type 2 PSE) LED. When ON this indicates that a type 2 PSE or an adapter is

present.

D20 (GRN) OUTPUT TPS23752 output powered.

D14 (GRN) D14 Sleep mode status indicator. D14 is ON when TPS23752 is in sleep mode or when a

shunt is installed on J8

Table 3. Test Points

Test Point Color Label Description

TP1 RED PAIR12 Data pair from pins 1 and 2 of J1

TP2 ORG PAIR36 Data pair from pins 3 and 6 of J1

TP3 RED PAIR45 Spare pair from pins 4 and 5 of J1

TP4 ORG PAIR78 Spare pair from pins 7 and 8 of J1

TP5 RED VDD High-side output from bridge

TP6 BLK VSS Low-side output from bridge

TP8 RED VOUT Converter output voltage with respect to TP13

TP9 BLK RTN Switched low side from TPS23752

TP10 ORG SDRN Secondary side switching waveform

TP11 RED VB TPS23752 5-V bias voltage

TP12 RED VC TPS23752 12-V auxiliary input voltage

TP13 BLK GND Converter output ground with respect to TP8

TP14 WHT GATE TPS23752 GATE drive output

TP15 ORG DRN Primary side switching waveform

TP16 ORG LOOP Feedback loop injection point, use with TP8 and TP13

TP17 WHT CTL CTL pin input to TPS23752

TP7 SM EGND Earth or chassis ground point

TPS23752EVM-145: Evaluation Module for TPS23752 SLVU753–July 2012

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