Datasheet

USBDIGEVM
External
Power
USBConnection
fromComputer
V
5V
USB
Adjustable
Regulator
Power
Switching
3.3V
Regulator
Buffersand
Latches
TUSB3210
8052 C
withUSBInterface
andUART
m
ResetButton
andPower-On
Reset
8Kx8-Byte
EEPROM
V
(2.7Vto
5.5V)
CC
V
(2.7Vto5.5V)
DUT
SwitchedPower
I C
SPI
ControlBits
MeasureBits
2
V
3.3V
S
mC
www.ti.com INA219EVM Hardware Setup
2.3 Theory of Operation For USB_DIG_Platform
Figure 5 shows the block diagram for the USB DIG Platform. This platform is a general-purpose data
acquisition system that is used on several different Texas Instruments evaluation modules. The details of
its operation are included in a separate document (available for download at www.ti.com). The block
diagram shown in Figure 5 gives a brief overview of the platform. The primary control device on the USB
DIG Platform is the TUSB3210.
Figure 5. USB_DIG_Platform Theory of Operation
3 INA219EVM Hardware Setup
The INA219EVM hardware setup involves connecting the two PCBs of the EVM together, applying power,
connecting the USB cable, and setting the jumpers. This section presents the details of this procedure.
3.1 Electrostatic Discharge Warning
Many of the components on the INA219EVM are susceptible to damage by electrostatic discharge (ESD).
Customers are advised to observe proper ESD handling precautions when unpacking and handling the
EVM, including the use of a grounded wrist strap at an approved ESD workstation.
CAUTION
Failure to observe ESD handling procedures may result in damage to EVM
components.
7
SBOU074A–January 2009–Revised February 2010 INA219 Evaluation Module
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