Datasheet

FAN

VIN

V5IN

LOAD

0.75V @

NSTRUMENTS

EXAS

Test Setup

www.ti.com

5.2 Recommended Test Setup

Figure 3 is the recommended test set up to evaluate the TPS53317EVM-750. Working at an ESD

workstation, make sure that any wrist straps, bootstraps or mats are connected referencing the user to

earth ground before power is applied to the EVM.

Figure 3. TPS53317EVM-750 Recommended Test Set Up

Input Connections:

1. Prior to connecting the DC input source VIN, it is advisable to limit the source current from VIN to 10 A

maximum. Make sure VIN is initially set to 0 V and connected to J1 as shown in Figure 3.

2. Connect a current meter A1 between VIN and J1 to measure the input current.

3. Connect a voltmeter V1 at TP1 (VIN) and TP2 (PGND) to measure the input voltage.

4. Prior to connecting the 5-V DC source V5IN, it is advisable to limit the source current from V5IN to 1 A

maximum. Make sure V5IN is initially set to 0 V and connected to J3 as shown in Figure 3.

5. Connect a current meter A2 to measure the 5-V supply current.

6. Connect a voltmeter V3 at TP3 (V5IN) and TP4 (PGND) to measure the V5IN voltage.

Output Connections:

1. Connect Load to J2 and set Load to constant resistance mode to sink 0 A

before VIN is applied.

2. Connect a voltmeter V2 at TP5 (VOUT) and TP6 (PGND) to measure the output voltage.

Other Connections: Place a Fan as shown in Figure 3 and turn on, making sure air is flowing across the

EVM.

TPS53317EVM-750 D-CAP+™ Mode Synchronous Step-Down Integrated FETs SLUU642–September 2011

Converter

Submit Documentation Feedback