Datasheet

DUT

TPS23752EVM-145

J10

VOUT

GND

PSE

Ethernet

Device

(Ethernet Cable)

Wall

Adapter

+ ±

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TPS23752EVM-145 Performance Data

Table 4. Jumpers

Jumper Label Description

J4 J4 D11 LED bias jumper. Installing enables WAKE LED.

J7 J5 D12 LED bias jumper. Installing enables T2P LED. Shunt may be removed when

making efficiency measurements.

J11 J11 D20 LED bias jumper. Installing enables OUTPUT LED. Shunt may be removed when

making efficiency measurements.

5.2 Test Setup

Figure 3 shows a typical test setup for the EVM. Connect J1 to the power sourcing equipment (PSE)

Power for the Ethernet device is available at J10 and the pass-through Ethernet data is available at J2.

Figure 3. Typical TPS23752EVM-145 Test Setup

6 TPS23752EVM-145 Performance Data

6.1 Efficiency

Figure 4, Figure 5, and Figure 6 illustrate the efficiency of the EVM. Figure 4 efficiency is measured

between the J1 input interface and J10 output connector while Figure 5 and Figure 6 are measured

between TP5/TP6 and J10 to exclude the diode bridge and Ethernet transformer losses. Figure 6

demonstrates the light-load efficiency improvement provided by the VFO mode.

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

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