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Table of Contents
User’s Guide
INA260EVM-PDK (Rev A)
ABSTRACT
This user's guide describes the characteristics, operation, and use of the INA260EVM-PDK (Rev A) hardware.
This user's guide discusses how to set up and configure the software and hardware, and reviews the device
operation. Throughout this document, the terms evaluation board, evaluation module, EVM PCB, and EVM are
synonymous with the INA260EVM. The terms PDK, kit, and EVM kit are synonymous with the INA260EVM-PDK.
This user's guide also includes information regarding operating procedures, the input and output connections, an
electrical schematic, printed circuit board (PCB) layout drawings, and a parts list for the EVM.
Table of Contents
1 Overview..................................................................................................................................................................................2
1.1 INA260EVM-PDK Contents............................................................................................................................................... 2
1.2 INA260EVM-PDK Features................................................................................................................................................3
1.3 Related Documentation from Texas Instruments............................................................................................................... 5
2 INA260EVM-PDK Hardware....................................................................................................................................................6
2.1 SM-USB-DIG Platform Description.................................................................................................................................... 7
2.2 INA260EVM PCB Description............................................................................................................................................ 8
2.3 EVM Digital Inputs and Outputs....................................................................................................................................... 10
3 INA260EVM-PDK (Rev A) Setup...........................................................................................................................................11
3.1 One-Time GUI Software Installation.................................................................................................................................12
3.2 INA260EVM Jumper Settings.......................................................................................................................................... 14
3.3 Connecting the Hardware................................................................................................................................................ 15
3.4 System Power-Up............................................................................................................................................................ 17
4 INA260EVM GUI Software.................................................................................................................................................... 23
4.1 Configuration Tool............................................................................................................................................................ 24
4.2 Results Bar.......................................................................................................................................................................27
4.3 Graph Tool........................................................................................................................................................................27
4.4 Registers Tool.................................................................................................................................................................. 28
5 INA260EVM Documentation.................................................................................................................................................29
5.1 Schematic........................................................................................................................................................................ 30
5.2 PCB Layout...................................................................................................................................................................... 31
5.3 Bill of Materials.................................................................................................................................................................32
6 Revision History................................................................................................................................................................... 35
Trademarks
Windows® is a registered trademark of Microsoft Corporation.
All trademarks are the property of their respective owners.
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Overview
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1 Overview
The INA260 is a high- or low-side current sensor, power, and voltage monitor with a 2-mΩ precision integrated
shunt resistor and I2C interface. The INA260 offers programmable conversion times and averaging modes that
enable high resolution measurements of the current, voltage, and power dissipation of the monitored source.
The INA260EVM-PDK, which consists of the INA260EVM and SM-USB-DIG controller board, is a platform
used to evaluate the features and performance of the INA260 under various signal and supply conditions.
This document gives a general overview of the INA260EVM-PDK and describes the features and functions to
consider when using this evaluation module.
1.1 INA260EVM-PDK Contents
Table 1-1 summarizes the contents of the INA260EVM kit. Figure 1-1 shows all included hardware. Contact the
Texas Instruments customer support center if any component is missing.
Note
This EVM kit requires the INA260EVM GUI software, which is available for download through the
INA260 design & development folder. TI recommends users check the INA260 product folder on the TI
website at www.ti.com to verify that they have the latest versions of the related software.
Table 1-1. INA260EVM Kit Contents
2
INA260EVM-PDK (Rev A)
ITEM
QUANTITY
INA260EVM PCB test board
1
SM-USB-DIG platform PCB
1
USB extender cable
1
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Overview
Figure 1-1. Hardware Included with the INA260EVM Kit
1.2 INA260EVM-PDK Features
•
•
•
•
•
USB-powered; no external power supply is required
Support for full ±15-A input current range and 36-V common-mode voltage range of the INA260
EVM includes placeholders for transient voltage suppression (TVS) devices to protect the INA260 inputs from
excessively high common-mode voltages
Digital host controller included
Intuitive GUI software supports all major INA260 functional modes and simplifies device configuration
Note
To protect against voltage transients that may exceed the absolute maximum ratings, TI highly
recommends installing the TVS devices (D3 and D4, as shown in Figure 1-2) with a minimum power
rating of 1000 W to clamp the input voltages to less than 36 V.
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Figure 1-2. Placeholders for TVS Devices
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1.3 Related Documentation from Texas Instruments
The following documents provide information regarding Texas Instruments' integrated circuits used in the
assembly of the INA260EVM. This user's guide is available from the TI web site under literature number
SBOU180. Any letter appended to the literature number corresponds to the document revision that is current at
the time of the writing of this document. Newer revisions may be available from www.ti.com, or call the Texas
Instruments' Literature Response Center at (800) 477-8924 or the Product Information Center at (972) 644-5580.
When ordering, identify the document by both title and literature number.
Table 1-2. Related Documentation
DOCUMENT
LITERATURE
NUMBER
INA260 product data sheet
SBOS656
SM-USB-DIG platform user guide
SBOU098
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2 INA260EVM-PDK Hardware
Figure 2-1 shows the overall system setup for the INA260EVM-PDK. To monitor the power source, connect the
power source to the EVM input terminals. The computer runs the GUI software that enables power to the INA260
and communicate with the device. The user can send commands through the USB port of the computer to the
SM-USB-DIG board to translate these commands into I2C format before sending the commands to the EVM.
With power enabled, the INA260 responds to these I2C commands by sending the requested data back to the
SM-USB-DIG board over the I2C. The SM-USB-DIG converts the received data to USB format and sends the
data back to the computer, where it is then appropriately processed and displayed to the user.
INA260EVM GUI
SCL
T1
ILOAD
USB DATA
SDA
VSUPPLY
VBUS
INA260EVM
PCB
ALERT
SM-USB-DIG
Controller
11.1 A
VBUS
6.02 V
PLOAD
66.82 W
POWER
GND
POWER
T2
GND
ILOAD
LOAD
Figure 2-1. INA260EVM-PDK Hardware Setup
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2.1 SM-USB-DIG Platform Description
Figure 2-2 shows the block diagram for the SM-USB-DIG platform. This platform is a general-purpose data
acquisition system that is used on other Texas Instruments evaluation modules. The details of operation are
included in a separate document, SBOU098 (available for download at www.ti.com).
The TUSB3210 is the primary control device for the SM-USB-DIG Platform. The TUSB3210 is an 8052
microcontroller that converts data received on the built-in USB interface to the I2C, SPI, and other serial digital
I/O patterns. This EVM uses the I2C interface of the TUSB3210 to control the INA260.
Power supply for the SM-USB-DIG is derived from the USB interface. The SM-USB-DIG includes an onboard
low dropout (LDO) regulator that uses the 5-V USB supply from the computer to generate a 3.3-V supply, which
is then used to power all the active circuitry on board. The 3.3-V regulated supply can also be used to power
the EVM PCB. In fact, the raw 5-V USB supply as well as the 3.3-V regulated supply are routed to a 2-input
power MUX on the SM-USB-DIG, the TPS2115A, whose output terminates at the VDUT pin of the 10-pin EVM
connector, intended to be used as the EVM power supply. The user can select between the 5-V and 3.3-V
options for VDUT through the INA260EVM GUI software.
+3.3V
VUSB
+5V
TUSB3210
8052 mC
with USB Interface
and UART
USB Bus
from
Computer
8Kx8-byte
EEPROM
Power-On Reset
+5.0V
USB Power
+3.0V
2
I C/SPI
Control and
Measure Bits
Buffers and
Level Translators
To Test Board
To Computer and Power Supplies
+3.3V
Regulator
SM USB DIG Platform
Power
Switching
VDUT
(H-Z, 3.3V, or 5V)
Switched
Power
Figure 2-2. SM-USB-DIG Platform Block Diagram
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2.2 INA260EVM PCB Description
Figure 2-3 depicts a block diagram of the INA260EVM PCB highlighting the power supplies, analog inputs, and
digital I/O signals.
IN+
T1
VDUT Supply
J1
VBUS
I2C interface
J4
INA260
T2
IN-
A0, A1
GND
J2, J3
Figure 2-3. INA260EVM Block Diagram
The EVM PCB requires minimal instrumentation to be operated. In fact, the only pieces of required equipment
not included in the kit are a ( Windows® 7) computer and an input current source. All other inputs are supplied by
the SM-USB-DIG board, via the 10-pin connector socket, J4. Table 2-1 lists the pinout for J4.
Table 2-1. Signal Definition of J4 on INA260EVM Board
(1)
PIN ON J4
SIGNAL
DESCRIPTION
10
I2C_SCL
I2C clock signal (SCL)
9
CTRL/MEAS4
GPIO: control output or measure input
8
I2C_SDA1
I2C data signal (SDA)
7
CTRL/MEAS5
GPIO: control output or measure input
6
SPI_DOUT1
SPI data output (MOSI)
5
VDUT
Switchable DUT power supply: 3.3 V, 5 V, Hi-Z
(disconnected)(1)
4
SPI_CLK
SPI clock signal (SCLK)
3
GND
Power return (GND)
2
SPI_CS1
SPI chip-select signal ( CS)
1
SPI_DIN1
SPI data input (MISO)
When VDUT is Hi-Z, all digital I/Os are Hi-Z as well.
2.2.1 EVM Power Supply
The INA260EVM PCB uses the VDUT and GND lines from the SM-USB-DIG (via J4) as the high and low supply
voltages for the INA260. As noted in Table 2-1, the available supply voltages for VDUT are 5 V and 3.3 V. The
EVM supply voltage is user-selectable through the GUI. Place the 1-µF ceramic capacitor (C2) in close proximity
to the INA260 supply pin (U1) to provide adequate decoupling to VDUT for power supply rejection at higher
frequencies.
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2.2.2 EVM Analog Inputs
The INA260 accepts two kinds of analog inputs: namely, a current through the internal shunt resistor and a
voltage between the VBUS pin and GND. Configure the INA240 in the GUI to digitize either one or both of these
inputs in serial order. The high current lug connectors designated T1 and T2 are the terminations of the internal
2-mΩ shunt resistor, therefore connect T1 and T2 in series with the input current source and load (see Figure
2-1). The INA260 is a bidirectional device and thus current can flow through the shunt resistor in either direction.
CAUTION
Do Not Exceed the Absolute Maximum Ratings (see the INA260 datasheet)!
To help ensure safe operating conditions, do not exceed the following electrical ratings:
• 15 A between connectors T1 and T2 in either direction
• 36 Vdc between T1 and GND
• 36 Vdc between T2 and GND
WARNING
Potential Burn Hazard!
To minimize risk of burn, do not touch U1 (the INA260 device) when input current is present.
Temperatures higher than 50°C are possible.
The VBUS input of the INA260 is accessible through pin 2 of header J1. Pins 1 and 3 of J1 are connected to IN+
and IN–, respectively. Note that the VBUS input is independent of the current input (that is, the VBUS input can be
applied with or without a load), and the INA260 provides an accurate voltage reading. However, the device also
passively multiplies the measured values of VBUS and input current to generate a power value. For the power
calculation to be meaningful, VBUS must represent the voltage drop created by the input current across the load.
Therefore, for accurate load power measurements, short the VBUS pin to IN+ or IN– (on header J1) depending
on the location of the load. For example, for the arrangement in Figure 2-1, short VBUS to IN– for an accurate
load power calculation.
The EVM PCB also includes placeholders for the TVS devices to protect the INA260 inputs from excessively
high common-mode voltages. The pads for these uninstalled devices, D3 and D4, are located on the bottom side
of the EVM PCB and are suitable for DO-214AB package.
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2.3 EVM Digital Inputs and Outputs
The only digital input signals required to operate the INA260 are the 2-bit I2C device address (A[1:0]), serial
clock (SCL), and serial data (SDA), which is a bidirectional pin and thus also an output. The device address
bits can each assume one of four values: GND, VS, SDA or SCL, resulting in 16 possible target addresses
summarized in Table 2-2. The values of A0 and A1 must be set using jumpers J2 and J3, respectively.
Table 2-2. INA260 I2C Address Configuration
A1
A0
TARGET ADDRESS
GND
GND
1000000
GND
VS+
1000001
GND
SDA
1000010
GND
SCL
1000011
VS+
GND
1000100
VS+
VS+
1000101
VS+
SDA
1000110
VS+
SCL
1000111
SDA
GND
1001000
SDA
VS+
1001001
SDA
SDA
1001010
SDA
SCL
1001011
SCL
GND
1001100
SCL
VS+
1001101
SCL
SDA
1001110
SCL
SCL
1001111
The SM-USB-DIG drives the SCL and SDA through the J4 connector socket. These are open-drain inputs
and the EVM contains pullup resistors to drive these inputs high when the corresponding SM-USB-DIG digital
outputs are in tri-state. Both fast (1 kHz to 400 kHz) and high-speed (1 kHz to 2.94 MHz) I2C modes are
supported.
The outputs of the INA260 include SDA and ALERT, both of which are routed to J4 and are readable from the
GUI. The GUI includes support for both over- and underlimit as well as conversion ready indicator modes of the
ALERT pin. The state of the ALERT pin can be read from either the GUI or the onboard LED indicator.
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3 INA260EVM-PDK (Rev A) Setup
CAUTION
Components of the INA260EVM-PDK 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.
The INA260EVM-PDK (Rev A) hardware setup involves the following sequence of operations:
1.
2.
3.
4.
Perform a one-time GUI software installation
Configure the EVM jumpers
Connect the hardware
Power up the EVM and input source
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3.1 One-Time GUI Software Installation
The GUI software must be installed on a computer running Windows XP or later. Windows 7 is the recommended operating system.
Note
For the GUI text to be rendered correctly, the text size under Control Panel >> Appearance and Personalization >> Display (shown in Figure
3-1) must be set to Smaller - 100%.
Figure 3-1. Recommended Display Settings
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INA260EVM-PDK (Rev A) Setup
Make sure the hardware is not connected to the computer. Download the INA260EVM GUI from the INA260 Tools & Software folder. Extract the contents
of the downloaded .zip file and run Setup_INA260EVM.exe. Follow the on-screen instructions provided in Figure 3-2 to complete the software installation.
1
5
3
4
7
8
2
6
Figure 3-2. INA260EVM GUI Installation
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3.2 INA260EVM Jumper Settings
Figure 3-3 shows the default jumper configuration for the INA260EVM and Table 3-1 explain the purpose of each
jumper. Ensure that the jumpers are installed in the correct positions, based on the required test conditions.
Figure 3-3. INA260EVM Default Jumper Settings
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Table 3-1. INA260EVM Test Board Jumper Functions
JUMPER
DEFAULT
PURPOSE
J1
IN+
This jumper selects whether the VBUS pin on the INA260 is connected to the
IN+ or IN– pin; see Section 2.2.2 for details.
J2
GND
This jumper sets the A0 character of the 2-character I2C device address; see
Section 2.3 for details.
J3
GND
This jumper sets the A1 character of the 2-character I2C device address; see
Section 2.3 for details.
3.3 Connecting the Hardware
WARNING
To minimize risk of potential electrical shock hazard, be sure the EVM is full deenergized.
Before connecting the boards, make sure the high current lug connectors (T1 and T2) are tightly secured to
the EVM PCB for low contact resistance. To minimize risk of potential electrical shock hazard, deenergize EVM
followed by use of a screw-driver, while clasping the nut on the PCB bottom side with a crescent wrench.
Note
It may be necessary to uninstall the nylon standoffs near the lug connectors before manipulating the
fasteners to avoid damaging them.
Connect the INA260EVM to the SM-USB-DIG board in the proper orientation, as shown in Figure 3-4. Make sure
that the two connectors are completely pushed together; loose connections can cause intermittent operation.
Figure 3-4. INA260EVM and SM-USB-DIG Connected in Proper Orientation
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Next, with the output disabled, connect the input current source to the EVM via T1 and T2, as shown in Figure
3-5.
Note
The lug connectors can accommodate wire sizes up to #6-AWG.
Also be sure to connect the low-side terminal of the input current source to EVM ground (GND) using one of the
test points. This step is important to obtain accurate VBUS measurements.
Lastly, connect the SM-USB-DIG to the computer, using the included USB extender cable if necessary. At this
point the SM-USB-DIG powers on, but the EVM does not.
The power supply to the EVM must be enabled from the GUI.
Figure 3-5. SM-USB-DIG Powers on When Connected to a Computer
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3.4 System Power-Up
Launch the INA260EVM GUI software. The Power button on the GUI is enabled by default, which allows the
POWER LED on the EVM to immediately light up. The light shows that the EVM PCB is receiving power.
To input
current
source low
side.
Figure 3-6. INA260EVM Powers Up Following the GUI Launch
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Additionally, the supply voltage (VDUT) is set to 3.3 V by default, but the user can select the 5-V option, if
necessary (see Figure 3-7).
Figure 3-7. VDUT Selection
With the INA260 powered on, the user can enable the analog input sources.
Section 4 discusses the GUI configuration and data collection using this setup.
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3.2 INA260EVM Jumper Settings
Figure 3-3 shows the default jumper configuration for the INA260EVM and Table 3-1 explain the purpose of each
jumper. Ensure that the jumpers are installed in the correct positions, based on the required test conditions.
Figure 3-3. INA260EVM Default Jumper Settings
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Table 3-1. INA260EVM Test Board Jumper Functions
JUMPER
DEFAULT
PURPOSE
J1
IN+
This jumper selects whether the VBUS pin on the INA260 is connected to the
IN+ or IN– pin; see Section 2.2.2 for details.
J2
GND
This jumper sets the A0 character of the 2-character I2C device address; see
Section 2.3 for details.
J3
GND
This jumper sets the A1 character of the 2-character I2C device address; see
Section 2.3 for details.
3.3 Connecting the Hardware
WARNING
To minimize risk of potential electrical shock hazard, be sure the EVM is full deenergized.
Before connecting the boards, make sure the high current lug connectors (T1 and T2) are tightly secured to
the EVM PCB for low contact resistance. To minimize risk of potential electrical shock hazard, deenergize EVM
followed by use of a screw-driver, while clasping the nut on the PCB bottom side with a crescent wrench.
Note
It may be necessary to uninstall the nylon standoffs near the lug connectors before manipulating the
fasteners to avoid damaging them.
Connect the INA260EVM to the SM-USB-DIG board in the proper orientation, as shown in Figure 3-4. Make sure
that the two connectors are completely pushed together; loose connections can cause intermittent operation.
Figure 3-4. INA260EVM and SM-USB-DIG Connected in Proper Orientation
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Next, with the output disabled, connect the input current source to the EVM via T1 and T2, as shown in Figure
3-5.
Note
The lug connectors can accommodate wire sizes up to #6-AWG.
Also be sure to connect the low-side terminal of the input current source to EVM ground (GND) using one of the
test points. This step is important to obtain accurate VBUS measurements.
Lastly, connect the SM-USB-DIG to the computer, using the included USB extender cable if necessary. At this
point the SM-USB-DIG powers on, but the EVM does not.
The power supply to the EVM must be enabled from the GUI.
Figure 3-5. SM-USB-DIG Powers on When Connected to a Computer
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3.4 System Power-Up
Launch the INA260EVM GUI software. The Power button on the GUI is enabled by default, which allows the
POWER LED on the EVM to immediately light up. The light shows that the EVM PCB is receiving power.
To input
current
source low
side.
Figure 3-6. INA260EVM Powers Up Following the GUI Launch
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INA260EVM GUI Software
Additionally, the supply voltage (VDUT) is set to 3.3 V by default, but the user can select the 5-V option, if
necessary (see Figure 3-7).
Figure 3-7. VDUT Selection
With the INA260 powered on, the user can enable the analog input sources.
Section 4 discusses the GUI configuration and data collection using this setup.
4 INA260EVM GUI Software
The INA260EVM GUI is a collection of software tools that make it easy for the user to explore the key behaviors
of the INA260. The following tools are available:
• The Configuration tool simplifies the INA260 setup prior to evaluation testing
• The Graph tool plots the acquired data and exports to a file, if necessary
• The Registers tool displays and modifies the contents of the user-accessible registers
Each tool has a dedicated page under the corresponding tab on the GUI. The tabs are organized intuitively from
left to right in the proper order, and the GUI always displays the Configuration page immediately after start-up.
User can monitor measurement data under the Results Bar at the bottom of the GUI window. In most cases,
(gross) testing can be performed using just the Configuration tool and the Results Bar; users may only need the
Graph and Registers tools in special situations.
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4.1 Configuration Tool
The Configuration tool allows the user to modify the operating conditions of the INA260 as required. Userspecified settings are translated to I2C frames and written to the appropriate device registers whenever the user
clicks the Write All Reg button. Equivalently, enabling the Auto-Write button causes immediate register updates
whenever changes are detected. Figure 4-1 shows the Configuration page of the GIU.
Figure 4-1. Configuration Page
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4.1.1 Step 1: Set the I2C Address
The first step to configuring the INA260 from the EVM GUI is setting up communication. As indicated by Table
2-2, the address bits A0 and A1 may represent up to 16 different INA260 devices communicating over a single
I2C bus, where each device is identified by a unique target address. Therefore, step 1 involves selecting the
correct A0 and A1 values that represent the target address of the INA260 installed on the EVM. In other words,
the states of A0 and A1 in the GUI must match the jumper settings chosen for J2 and J3 on the EVM. The
equivalent hexadecimal value of the target address is displayed in the box labeled I2C Address in Figure 4-2.
Figure 4-2. Target Address Setting
4.1.2 Step 2: Configure Operation
The INA260 offers multiple options for controlling the measurement process, including sequencing, triggering,
averaging, as well as a power-down function. The associated control parameters can be specified in this section
of the GUI.
Figure 4-3 shows the options available under the Operating Mode menu. The default operating mode is Shunt
and Bus, Continuous, which configures the INA260 to continuously measure the shunt current and bus voltage
in serial order. The user can also set the INA260 to only measure the shunt current or bus voltage, but most
applications benefit from measuring both signals.
Note
For maximum functionality, select a Shunt and Bus operating mode, as shown in Figure 4-3.
Selecting any of the manual trigger modes allows the INA260 to only take measurements when the user clicks
the Write All Reg button.
The Power Down mode stops all measurements from taking place until the operating mode changes again. The
device remains attached to power but draws minimal supply current.
Figure 4-3. Operating Mode Menu
The Averaging Mode menu allows the user to select a desired number of samples for the INA260 averaging
feature. This step configures the INA260 to compute and store the average value of the specified number of
samples in the output register. The default value is 1.
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INA260EVM GUI Software
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4.1.3 Step 3: Set Conversion Times
Conversion time determines the sample rate of the INA260 internal ADC and can be programmed depending
on the bandwidth of the input signal. The INA260 offers independent control of the conversion time for bus and
shunt measurements. Step 3 provides drop-down menus from which suitable values can be selected, as shown
in Figure 4-4.
Figure 4-4. Configuring Conversion Times
4.1.4 Step 4: Configure Alert
The Alert pin allows the user to set limits on the value of the output register corresponding to the parameter
selected from the drop-down menu, as shown in Figure 4-5. If at any time the register value violates the
user-specified limit, a flag is triggered on the Alert pin. Note that the Alert pin is set to active low by default.
Users can specify the limit value in the Alert Limit box.
Figure 4-5. Configuring the Alert Pin
In addition to the INA260EVM software alert configuration, the Alert Configuration box includes the Conversion
Ready button that allows for a special functionality on the Alert pin. When the INA260 completes the conversions
for the current operation, the conversion triggers the Alert pin and notifies the user that another conversion
can be performed. In most cases, the INA260 conversion ready flag is not visible because of the speed of the
INA260 conversion process.
26
INA260EVM-PDK (Rev A)
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INA260EVM GUI Software
4.2 Results Bar
The contents of the INA260 output registers are appropriately scaled and displayed on the Results Bar located
at the bottom of the GUI window, as shown in Figure 4-6. The data displayed includes the states of the Alert
and Conversion Ready flags. Users can click the Read All Reg button to update the results every time the output
registers of the INA260 are read. Alternatively, users can enable the Continuously Poll Data button on the Graph
tool page to read the output registers continuously.
Figure 4-6. INA260 Results Bar
4.3 Graph Tool
The Graph tool buffers and plots measurement data over time, similar to an oscilloscope, as shown in Figure
4-7. The Y-axis variable can be changed from the drop-down menu. Users can either click the Read All Reg
button to update the plot or enable the Continuously Poll Data button to read the output registers continuously.
Note that the output registers do not update until a new set of samples are acquired. To acquire new samples,
click the Write All Reg button or configure the INA260 for continuous trigger mode.
Note
The recommended operating mode for using the Graph tool is Shunt and Bus, Continuous.
Figure 4-7. Graph Tool Page
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4.4 Registers Tool
The Registers tool (as shown in Figure 4-8) allows the user to monitor and even change the contents of the
internal user-accessible registers of the INA260 on a bit-by-bit basis. Bit names for the selected register are
displayed on the lower panel of the page, but the user is advised to consult the INA260 data sheet for detailed bit
definitions that may be necessary when modifying the contents of the input registers.
Figure 4-8. Registers Tool Page
28
INA260EVM-PDK (Rev A)
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INA260EVM Documentation
5 INA260EVM Documentation
This section contains the complete bill of materials, schematic diagram, and PCB layout for the INA260EVM.
Note
The board layout is not to scale. This image is intended to show how the board is laid out and is not
intended to be used for manufacturing INA260EVM PCBs.
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INA260EVM Documentation
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5.1 Schematic
Figure 5-1 shows the schematic for the INA260EVM.
Figure 5-1. INA260EVM Schematic
30
INA260EVM-PDK (Rev A)
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5.2 PCB Layout
Figure 5-2 shows the component layout for the INA260EVM PCB.
Figure 5-2. INA260EVM PCB Top Layer (Component Side)
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5.3 Bill of Materials
Table 5-1 lists the bill of materials for the INA260EVM.
Table 5-1. Bill of Materials: INA260EVM
NO.
1
C2
2
D1, D2
DESCRIPTION
VENDOR OR MANUFACTURER
PART NUMBER
CAP, CERM, 1 µF, 50 V, +/- 10%, X7R, 0805
MuRata
GRM21BR71H105KA12L
LED, Green, SMD
Kingbright
APT2012LZGCK
3
J1
Header, 2.54mm, 3x1, Tin, TH
Harwin Inc
M20-9990345
4
J4, J5
Header, 50mil, 4x2, Gold, SMT
Amphenol FCI
20021121-00008C4LF
Receptacle, 50mil, 10x1, Gold, R/A, TH
Mill-Max
851-43-010-20-001000
RES, 10.0 k, 1%, 0.125 W, 0805
Vishay-Dale
CRCW080510K0FKEA
5
J6
6
R1, R2, R3, R4
7
R5, R6
RES, 49.9, 1%, 0.125 W, 0805
Vishay-Dale
CRCW080549R9FKEA
8
T1, T2
Terminal 50A Lug
Panduit
CB35-36-CY
9
TP1, TP3, TP4, TP5, TP6
Test Point, Miniature, SMT
Keystone
5015
Integrated Shunt High-Side or Low-Side Measurement,
Bi-Directional Current and Power Monitor with I2C
Compatible Interface, PW0016A
Texas Instruments
INA260AIPWR
10
32
REF DES
U1
INA260EVM-PDK (Rev A)
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INA260EVM Documentation
5.2 PCB Layout
Figure 5-2 shows the component layout for the INA260EVM PCB.
Figure 5-2. INA260EVM PCB Top Layer (Component Side)
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5.3 Bill of Materials
Table 5-1 lists the bill of materials for the INA260EVM.
Table 5-1. Bill of Materials: INA260EVM
NO.
1
C2
2
D1, D2
DESCRIPTION
VENDOR OR MANUFACTURER
PART NUMBER
CAP, CERM, 1 µF, 50 V, +/- 10%, X7R, 0805
MuRata
GRM21BR71H105KA12L
LED, Green, SMD
Kingbright
APT2012LZGCK
3
J1
Header, 2.54mm, 3x1, Tin, TH
Harwin Inc
M20-9990345
4
J4, J5
Header, 50mil, 4x2, Gold, SMT
Amphenol FCI
20021121-00008C4LF
Receptacle, 50mil, 10x1, Gold, R/A, TH
Mill-Max
851-43-010-20-001000
RES, 10.0 k, 1%, 0.125 W, 0805
Vishay-Dale
CRCW080510K0FKEA
5
J6
6
R1, R2, R3, R4
7
R5, R6
RES, 49.9, 1%, 0.125 W, 0805
Vishay-Dale
CRCW080549R9FKEA
8
T1, T2
Terminal 50A Lug
Panduit
CB35-36-CY
9
TP1, TP3, TP4, TP5, TP6
Test Point, Miniature, SMT
Keystone
5015
Integrated Shunt High-Side or Low-Side Measurement,
Bi-Directional Current and Power Monitor with I2C
Compatible Interface, PW0016A
Texas Instruments
INA260AIPWR
10
34
REF DES
U1
INA260EVM-PDK (Rev A)
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Revision History
6 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision * (November 2016) to Revision A (March 2023)
Page
• Changed user guide title for INA260EVM-PDK (Rev A) hardware support........................................................1
• Changed all instances of legacy terminology to controller and target where I2C is mentioned........................25
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STANDARD TERMS FOR EVALUATION MODULES
1.
Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or
documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance
with the terms set forth herein. User's acceptance of the EVM is expressly subject to the following terms.
1.1 EVMs are intended solely for product or software developers for use in a research and development setting to facilitate feasibility
evaluation, experimentation, or scientific analysis of TI semiconductors products. EVMs have no direct function and are not
finished products. EVMs shall not be directly or indirectly assembled as a part or subassembly in any finished product. For
clarification, any software or software tools provided with the EVM (“Software”) shall not be subject to the terms and conditions
set forth herein but rather shall be subject to the applicable terms that accompany such Software
1.2 EVMs are not intended for consumer or household use. EVMs may not be sold, sublicensed, leased, rented, loaned, assigned,
or otherwise distributed for commercial purposes by Users, in whole or in part, or used in any finished product or production
system.
2
Limited Warranty and Related Remedies/Disclaimers:
2.1 These terms do not apply to Software. The warranty, if any, for Software is covered in the applicable Software License
Agreement.
2.2 TI warrants that the TI EVM will conform to TI's published specifications for ninety (90) days after the date TI delivers such EVM
to User. Notwithstanding the foregoing, TI shall not be liable for a nonconforming EVM if (a) the nonconformity was caused by
neglect, misuse or mistreatment by an entity other than TI, including improper installation or testing, or for any EVMs that have
been altered or modified in any way by an entity other than TI, (b) the nonconformity resulted from User's design, specifications
or instructions for such EVMs or improper system design, or (c) User has not paid on time. Testing and other quality control
techniques are used to the extent TI deems necessary. TI does not test all parameters of each EVM.
User's claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects in the EVMs within ten (10)
business days after delivery, or of any hidden defects with ten (10) business days after the defect has been detected.
2.3 TI's sole liability shall be at its option to repair or replace EVMs that fail to conform to the warranty set forth above, or credit
User's account for such EVM. TI's liability under this warranty shall be limited to EVMs that are returned during the warranty
period to the address designated by TI and that are determined by TI not to conform to such warranty. If TI elects to repair or
replace such EVM, TI shall have a reasonable time to repair such EVM or provide replacements. Repaired EVMs shall be
warranted for the remainder of the original warranty period. Replaced EVMs shall be warranted for a new full ninety (90) day
warranty period.
WARNING
Evaluation Kits are intended solely for use by technically qualified,
professional electronics experts who are familiar with the dangers
and application risks associated with handling electrical mechanical
components, systems, and subsystems.
User shall operate the Evaluation Kit within TI’s recommended
guidelines and any applicable legal or environmental requirements
as well as reasonable and customary safeguards. Failure to set up
and/or operate the Evaluation Kit within TI’s recommended
guidelines may result in personal injury or death or property
damage. Proper set up entails following TI’s instructions for
electrical ratings of interface circuits such as input, output and
electrical loads.
NOTE:
EXPOSURE TO ELECTROSTATIC DISCHARGE (ESD) MAY CAUSE DEGREDATION OR FAILURE OF THE EVALUATION
KIT; TI RECOMMENDS STORAGE OF THE EVALUATION KIT IN A PROTECTIVE ESD BAG.
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3
Regulatory Notices:
3.1 United States
3.1.1
Notice applicable to EVMs not FCC-Approved:
FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software
associated with the kit to determine whether to incorporate such items in a finished product and software developers to write
software applications for use with the end product. This kit is not a finished product and when assembled may not be resold or
otherwise marketed unless all required FCC equipment authorizations are first obtained. Operation is subject to the condition
that this product not cause harmful interference to licensed radio stations and that this product accept harmful interference.
Unless the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit must
operate under the authority of an FCC license holder or must secure an experimental authorization under part 5 of this chapter.
3.1.2
For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant:
CAUTION
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.
Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to
operate the equipment.
FCC Interference Statement for Class A EVM devices
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to
correct the interference at his own expense.
FCC Interference Statement for Class B EVM devices
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of
the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which
can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more
of the following measures:
•
•
•
•
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
3.2 Canada
3.2.1
For EVMs issued with an Industry Canada Certificate of Conformance to RSS-210 or RSS-247
Concerning EVMs Including Radio Transmitters:
This device complies with Industry Canada license-exempt RSSs. Operation is subject to the following two conditions:
(1) this device may not cause interference, and (2) this device must accept any interference, including interference that may
cause undesired operation of the device.
Concernant les EVMs avec appareils radio:
Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation
est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit
accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
Concerning EVMs Including Detachable Antennas:
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser)
gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type
and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for
successful communication. This radio transmitter has been approved by Industry Canada to operate with the antenna types
listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated.
Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited
for use with this device.
2
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Concernant les EVMs avec antennes détachables
Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et
d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage
radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope
rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante. Le
présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le
manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne
non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de
l'émetteur
3.3 Japan
3.3.1
3.3.2
Notice for EVMs delivered in Japan: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_01.page 日本国内に
輸入される評価用キット、ボードについては、次のところをご覧ください。
https://www.ti.com/ja-jp/legal/notice-for-evaluation-kits-delivered-in-japan.html
Notice for Users of EVMs Considered “Radio Frequency Products” in Japan: EVMs entering Japan may not be certified
by TI as conforming to Technical Regulations of Radio Law of Japan.
If User uses EVMs in Japan, not certified to Technical Regulations of Radio Law of Japan, User is required to follow the
instructions set forth by Radio Law of Japan, which includes, but is not limited to, the instructions below with respect to EVMs
(which for the avoidance of doubt are stated strictly for convenience and should be verified by User):
1.
2.
3.
Use EVMs in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal
Affairs and Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for
Enforcement of Radio Law of Japan,
Use EVMs only after User obtains the license of Test Radio Station as provided in Radio Law of Japan with respect to
EVMs, or
Use of EVMs only after User obtains the Technical Regulations Conformity Certification as provided in Radio Law of Japan
with respect to EVMs. Also, do not transfer EVMs, unless User gives the same notice above to the transferee. Please note
that if User does not follow the instructions above, User will be subject to penalties of Radio Law of Japan.
【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて
いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの
措置を取っていただく必要がありますのでご注意ください。
1.
2.
3.
電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用
いただく。
実験局の免許を取得後ご使用いただく。
技術基準適合証明を取得後ご使用いただく。
なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。
上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ
ンスツルメンツ株式会社
東京都新宿区西新宿６丁目２４番１号
西新宿三井ビル
3.3.3
Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page
電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧くださ
い。https://www.ti.com/ja-jp/legal/notice-for-evaluation-kits-for-power-line-communication.html
3.4 European Union
3.4.1
For EVMs subject to EU Directive 2014/30/EU (Electromagnetic Compatibility Directive):
This is a class A product intended for use in environments other than domestic environments that are connected to a
low-voltage power-supply network that supplies buildings used for domestic purposes. In a domestic environment this
product may cause radio interference in which case the user may be required to take adequate measures.
3
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4
EVM Use Restrictions and Warnings:
4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT
LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.
4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling
or using the EVM, including without limitation any warning or restriction notices. The notices contain important safety information
related to, for example, temperatures and voltages.
4.3 Safety-Related Warnings and Restrictions:
4.3.1
User shall operate the EVM within TI’s recommended specifications and environmental considerations stated in the user
guide, other available documentation provided by TI, and any other applicable requirements and employ reasonable and
customary safeguards. Exceeding the specified performance ratings and specifications (including but not limited to input
and output voltage, current, power, and environmental ranges) for the EVM may cause personal injury or death, or
property damage. If there are questions concerning performance ratings and specifications, User should contact a TI
field representative prior to connecting interface electronics including input power and intended loads. Any loads applied
outside of the specified output range may also result in unintended and/or inaccurate operation and/or possible
permanent damage to the EVM and/or interface electronics. Please consult the EVM user guide prior to connecting any
load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative.
During normal operation, even with the inputs and outputs kept within the specified allowable ranges, some circuit
components may have elevated case temperatures. These components include but are not limited to linear regulators,
switching transistors, pass transistors, current sense resistors, and heat sinks, which can be identified using the
information in the associated documentation. When working with the EVM, please be aware that the EVM may become
very warm.
4.3.2
EVMs are intended solely for use by technically qualified, professional electronics experts who are familiar with the
dangers and application risks associated with handling electrical mechanical components, systems, and subsystems.
User assumes all responsibility and liability for proper and safe handling and use of the EVM by User or its employees,
affiliates, contractors or designees. User assumes all responsibility and liability to ensure that any interfaces (electronic
and/or mechanical) between the EVM and any human body are designed with suitable isolation and means to safely
limit accessible leakage currents to minimize the risk of electrical shock hazard. User assumes all responsibility and
liability for any improper or unsafe handling or use of the EVM by User or its employees, affiliates, contractors or
designees.
4.4 User assumes all responsibility and liability to determine whether the EVM is subject to any applicable international, federal,
state, or local laws and regulations related to User’s handling and use of the EVM and, if applicable, User assumes all
responsibility and liability for compliance in all respects with such laws and regulations. User assumes all responsibility and
liability for proper disposal and recycling of the EVM consistent with all applicable international, federal, state, and local
requirements.
5.
Accuracy of Information: To the extent TI provides information on the availability and function of EVMs, TI attempts to be as accurate
as possible. However, TI does not warrant the accuracy of EVM descriptions, EVM availability or other information on its websites as
accurate, complete, reliable, current, or error-free.
6.
Disclaimers:
6.1 EXCEPT AS SET FORTH ABOVE, EVMS AND ANY MATERIALS PROVIDED WITH THE EVM (INCLUDING, BUT NOT
LIMITED TO, REFERENCE DESIGNS AND THE DESIGN OF THE EVM ITSELF) ARE PROVIDED "AS IS" AND "WITH ALL
FAULTS." TI DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, REGARDING SUCH ITEMS, INCLUDING BUT
NOT LIMITED TO ANY EPIDEMIC FAILURE WARRANTY OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF ANY THIRD PARTY PATENTS, COPYRIGHTS, TRADE
SECRETS OR OTHER INTELLECTUAL PROPERTY RIGHTS.
6.2 EXCEPT FOR THE LIMITED RIGHT TO USE THE EVM SET FORTH HEREIN, NOTHING IN THESE TERMS SHALL BE
CONSTRUED AS GRANTING OR CONFERRING ANY RIGHTS BY LICENSE, PATENT, OR ANY OTHER INDUSTRIAL OR
INTELLECTUAL PROPERTY RIGHT OF TI, ITS SUPPLIERS/LICENSORS OR ANY OTHER THIRD PARTY, TO USE THE
EVM IN ANY FINISHED END-USER OR READY-TO-USE FINAL PRODUCT, OR FOR ANY INVENTION, DISCOVERY OR
IMPROVEMENT, REGARDLESS OF WHEN MADE, CONCEIVED OR ACQUIRED.
7.
4
USER'S INDEMNITY OBLIGATIONS AND REPRESENTATIONS. USER WILL DEFEND, INDEMNIFY AND HOLD TI, ITS
LICENSORS AND THEIR REPRESENTATIVES HARMLESS FROM AND AGAINST ANY AND ALL CLAIMS, DAMAGES, LOSSES,
EXPENSES, COSTS AND LIABILITIES (COLLECTIVELY, "CLAIMS") ARISING OUT OF OR IN CONNECTION WITH ANY
HANDLING OR USE OF THE EVM THAT IS NOT IN ACCORDANCE WITH THESE TERMS. THIS OBLIGATION SHALL APPLY
WHETHER CLAIMS ARISE UNDER STATUTE, REGULATION, OR THE LAW OF TORT, CONTRACT OR ANY OTHER LEGAL
THEORY, AND EVEN IF THE EVM FAILS TO PERFORM AS DESCRIBED OR EXPECTED.
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8.
Limitations on Damages and Liability:
8.1 General Limitations. IN NO EVENT SHALL TI BE LIABLE FOR ANY SPECIAL, COLLATERAL, INDIRECT, PUNITIVE,
INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES IN CONNECTION WITH OR ARISING OUT OF THESE
TERMS OR THE USE OF THE EVMS , REGARDLESS OF WHETHER TI HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES. EXCLUDED DAMAGES INCLUDE, BUT ARE NOT LIMITED TO, COST OF REMOVAL OR
REINSTALLATION, ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, RETESTING,
OUTSIDE COMPUTER TIME, LABOR COSTS, LOSS OF GOODWILL, LOSS OF PROFITS, LOSS OF SAVINGS, LOSS OF
USE, LOSS OF DATA, OR BUSINESS INTERRUPTION. NO CLAIM, SUIT OR ACTION SHALL BE BROUGHT AGAINST TI
MORE THAN TWELVE (12) MONTHS AFTER THE EVENT THAT GAVE RISE TO THE CAUSE OF ACTION HAS
OCCURRED.
8.2 Specific Limitations. IN NO EVENT SHALL TI'S AGGREGATE LIABILITY FROM ANY USE OF AN EVM PROVIDED
HEREUNDER, INCLUDING FROM ANY WARRANTY, INDEMITY OR OTHER OBLIGATION ARISING OUT OF OR IN
CONNECTION WITH THESE TERMS, , EXCEED THE TOTAL AMOUNT PAID TO TI BY USER FOR THE PARTICULAR
EVM(S) AT ISSUE DURING THE PRIOR TWELVE (12) MONTHS WITH RESPECT TO WHICH LOSSES OR DAMAGES ARE
CLAIMED. THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT.
9.
Return Policy. Except as otherwise provided, TI does not offer any refunds, returns, or exchanges. Furthermore, no return of EVM(s)
will be accepted if the package has been opened and no return of the EVM(s) will be accepted if they are damaged or otherwise not in
a resalable condition. If User feels it has been incorrectly charged for the EVM(s) it ordered or that delivery violates the applicable
order, User should contact TI. All refunds will be made in full within thirty (30) working days from the return of the components(s),
excluding any postage or packaging costs.
10. Governing Law: These terms and conditions shall be governed by and interpreted in accordance with the laws of the State of Texas,
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these terms and conditions lies within courts located in the State of Texas and consents to venue in Dallas County, Texas.
Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief
in any United States or foreign court.
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Copyright © 2023, Texas Instruments Incorporated
5
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