Figure 4-2 TPS51219EVM-630 Recommended Test Setup

Figure 4-2 is the recommended test setup to evaluate the TPS51219EVM. Working at an ESD workstation, ensure that any wrist straps, bootstraps, or mats are connected referencing the user to earth ground before power is applied to the EVM.

Input Connections:

1. Prior to connecting the DC source VIN, it is advisable to limit the source current from VIN to 10 A maximum. Ensure that VIN is initially set to 0 V and connected as shown in Figure 4-2.
2. Prior to connecting the DC source V5IN, it is advisable to limit the source current from V5IN to 1 A maximum. Ensure that V5IN is initially set to 0 V and connected as shown in Figure 4-2.
3. Connect a voltmeter V1 at TP11 (VIN) and TP12 (VIN_GND) to measure VIN voltage, V2 at TP9 (V5IN), and TP10 (V5IN_GND) to measure V5IN voltage as shown in Figure 4-2.
4. Connect a current meter A1 between DC source VIN and J4 to measure the input current.
5. Connect a voltmeter V2 between DC source V5IN and J1 to measure the 5-V input current.

Output Connections:

1. Connect the load to J12 and J13, and set load to constant resistance mode to sink 0 A_DC before VIN and V5IN are applied.
2. Connect a voltmeter V3 at J6-2 (VSNS) and J6-1 (GSNS) to measure the output voltage.

Other Connections:
Place a fan as shown in Figure 4-2 and turn it on, ensuring that air is flowing across the EVM.