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Setup and Test Results

2.4

Software Installation and Operation

If installing from a CD, insert the CD and run Setup.exe; follow all the prompts to install the software.

If installing from the TI Web site, go to the URL,

http://focus.ti.com/en/download/aap/DesignEnv/TPS6116XEVM-SW/publish.htm

.

NOTE:

This installation page is best viewed with Microsoft Internet Explorer browser (It may not

work correctly with other browsers)

Click on the install button; your PC gives you a security warning and asks if you want to install this
application. Select Install to proceed. If a pre-release or Beta version is currently installed on your PC, you
must uninstall this version of the software before installing the final version from either the CD or the TI
Web site.

With both types of installation, the software attempts to install the Microsoft Dot Net Framework 2.0 (if it is
not already installed) This framework is required for the software to run.

Immediately following installation, the software automatically runs.

To run the software after installation, go to

Start

all programs

Texas Instruments, Inc.

TPS6116x Controller EVM Software.

At start-up, the software first checks the firmware version of the USB-TO-GPIO adapter box. If an incorrect
firmware version is installed, the software automatically searches on the Internet (if connected) for
updates. If a new update is available, the software notifies the user of the update, downloads and installs
the software. Note that after the firmware is updated, the user must disconnect and then reconnect the
USB cable between the adapter and PC, as instructed during the install process. The host PC software
also automatically searches on the Internet (if connected) for updates. If a new update is available, the
software notifies the user of the update, downloads, and installs it.

NOTE:

VeriSign™ Code Signing is used to prevent any malicious code from changing this

application. If at any time in the future the binaries are modified, the code no longer attempts
to run.

The TPS6116x IC has a 5-bit register that stores the feedback voltage to which the error amplifier
regulates the FB pin. Using the EasyScale™ protocol, the user can program a separate digital IC to
generate a signal that changes this register to one of 32 discrete settings, thereby changing the FB
voltage and subsequent regulated WLED current. The software provides a GUI interface which allows the
user to change the bits directly or by a drop-down box. After changing the bits, press the WRITE button.
See a screen shot of the software in

Figure 2

.

5

SLVU224C – January 2008 – Revised February 2010

TPS61165EVM-283

Submit Documentation Feedback

Copyright © 2008–2010, Texas Instruments Incorporated

Summary of Contents for TPS61165EVM-283

Page 1: ...bill of materials and a schematic diagram Contents 1 Introduction 2 2 Setup and Test Results 2 3 Board Layout 6 4 Schematics and Bill of Materials 9 List of Figures 1 USB Interface Adapter Quick Conn...

Page 2: ...ion of the EVM the board was designed with devices having 0603 or larger footprints A real world implementation would likely occupy less total board space The inductor and compensation components R1 C...

Page 3: ...WLEDs from the boost converter feedback path With this jumper removed and jumper JP1 installed the IC s overvoltage protection circuit clamps the boost converter output to 38 V typ WARNING This EVM h...

Page 4: ...JP1 and connect the appropriately configured function generator to the CTRL side of JP1 The PWM signal s duty cycle is directly proportional to the regulated current In order to implement analog dimmi...

Page 5: ...e version is installed the software automatically searches on the Internet if connected for updates If a new update is available the software notifies the user of the update downloads and installs the...

Page 6: ...2 5 Test Results This section provides typical performance characteristics for the TPS61165EVM 283 board Figure 3 LED Efficiency vs Output Current 3 Board Layout This section provides the TPS61165EVM...

Page 7: ...igh switching frequencies and currents are kept as short as possible to minimize trace inductance Careful attention was given to the routing of high frequency current loops and a single point groundin...

Page 8: ...Board Layout www ti com Figure 5 Top Side Layer 8 TPS61165EVM 283 SLVU224C January 2008 Revised February 2010 Submit Documentation Feedback Copyright 2008 2010 Texas Instruments Incorporated...

Page 9: ...limit and therefore not providing the regulated current in the specification table Input voltages greater than the drop across the sum of D2 D4 but less than the 18 V maximum does not damage the IC bu...

Page 10: ...3M 100mil spacing 4 Wall 2 JP1 JP2 PEC02SAAN Header 2 pin 100mil spacing 0 100 inch 2 PEC02SAAN Sullins 1 L1 10 mH Inductor 67 m 20 0 205 x 0 205 inch A915AY 100M Toko 1 R1 0 Resistor Chip 1 16W 1 06...

Page 11: ...entation From Texas Instruments TPS61165 High Brightness White LED Driver in 2mm x 2mm QFN Package data sheet SLVS790 11 SLVU224C January 2008 Revised February 2010 TPS61165EVM 283 Submit Documentatio...

Page 12: ...oduct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engine...

Page 13: ...h statements TI products are not authorized for use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury...

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