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Test Setup

5 Test Setup

5.1 Test Equipment

5.1.1 Personal Computer (Host Computer)

Microsoft Windows™ XP or newer with available USB port

5.1.2 USB Cable

The USB cable: standard USB_A to USB_B, 5-pin, mini-B cable. See the Figure 16 illustration.

Figure 16. USB Cable

5.1.3 TPS59640 USB Driver and SVID GUI Installation

1. Copy the file swrc094f.zip to the host computer.

2. Copy the file TI-SVID-GUI_1_5_0_1 exe to the host computer.

3. Extract setup.exe from the aforementioned .zip file.

4. Double-click on this setup.exe. This loads the TUSB drivers files to the host computer on C:\Program

Files\Texas Instruments Inc\TUSB3410 Single Driver installer\DISK1

5. Then, go to this location on the host computer (C:\Program Files\Texas Instruments Inc\TUSB3410

Single Driver installer\DISK1), and double-click setup.exe. This installs the TUSB driver.

5.1.4 DC Source

12VBAT DC Source: The 12VBAT DC source must be a 0-V to 20-V variable DC source capable of

supplying a 20-Adc current. Connect 12VBAT to J30 as shown in Figure 17.

5Vin DC Source: The 5Vin DC source must be a 0-V to 5-V variable DC source capable of supplying a

1-Adc current. Connect 5Vin to J31 as shown in Figure 17.

5.1.5 Meters

• V1: 5Vin at TP72(5Vin) and TP75 (GND)

• V2: 12VBAT at TP73(VBAT) and TP21 (GND)

• V3: CPU Vcore sense voltage at J14; GPU Vcore sense voltage at J16; VDDQ sense voltage at J29,

VCCIO sense voltage at J25

• A1: 12VBAT input current

5.1.6 Load

The output load must be an electronic constant current load capable of 0 Adc to 90 Adc.

SLUU796– January 2012 Using the TPS59640EVM-751 IMVP-7, 3-Phase CPU/1-Phase GPU SVID

Power System

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