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ADDITIONAL TERMS AND CONDITIONS, WARNINGS, RESTRICTIONS, AND DISCLAIMERS FOR

EVALUATION MODULES

Texas Instruments Incorporated (TI) markets, sells, and loans all evaluation boards, kits, and/or modules (EVMs) pursuant to, and user
expressly acknowledges, represents, and agrees, and takes sole responsibility and risk with respect to, the following:

1.

User agrees and acknowledges that EVMs are intended to be handled and used for feasibility evaluation only in laboratory and/or
development environments. Notwithstanding the foregoing, in certain instances, TI makes certain EVMs available to users that do not
handle and use EVMs solely for feasibility evaluation only in laboratory and/or development environments, but may use EVMs in a
hobbyist environment. All EVMs made available to hobbyist users are FCC certified, as applicable. Hobbyist users acknowledge, agree,
and shall comply with all applicable terms, conditions, warnings, and restrictions in this document and are subject to the disclaimer and
indemnity provisions included in this document.

2.

Unless otherwise indicated, EVMs are not finished products and not intended for consumer use. EVMs are intended solely for use by
technically qualified electronics experts who are familiar with the dangers and application risks associated with handling electrical
mechanical components, systems, and subsystems.

3.

User agrees that EVMs shall not be used as, or incorporated into, all or any part of a finished product.

4.

User agrees and acknowledges that certain EVMs may not be designed or manufactured by TI.

5.

User must read the user's guide and all other documentation accompanying EVMs, including without limitation any warning or
restriction notices, prior to handling and/or using EVMs. Such notices contain important safety information related to, for example,
temperatures and voltages. For additional information on TI's environmental and/or safety programs, please visit

www.ti.com/esh

or

contact TI.

6.

User assumes all responsibility, obligation, and any corresponding liability for proper and safe handling and use of EVMs.

7.

Should any EVM not meet the specifications indicated in the user’s guide or other documentation accompanying such EVM, the EVM
may be returned to TI within 30 days from the date of delivery for a full refund. THE FOREGOING LIMITED WARRANTY IS THE
EXCLUSIVE WARRANTY MADE BY TI TO USER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR
STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. TI SHALL
NOT BE LIABLE TO USER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES RELATED TO THE
HANDLING OR USE OF ANY EVM.

8.

No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, or
combination in which EVMs might be or are used. TI currently deals with a variety of customers, and therefore TI’s arrangement with
the user is not exclusive. TI assumes no liability for applications assistance, customer product design, software performance, or
infringement of patents or services with respect to the handling or use of EVMs.

9.

User assumes sole responsibility to determine whether EVMs may be subject to any applicable federal, state, or local laws and
regulatory requirements (including but not limited to U.S. Food and Drug Administration regulations, if applicable) related to its handling
and use of EVMs and, if applicable, compliance in all respects with such laws and regulations.

10. User has sole responsibility to ensure the safety of any activities to be conducted by it and its employees, affiliates, contractors or

designees, with respect to handling and using EVMs. Further, user is responsible to ensure that any interfaces (electronic and/or
mechanical) between EVMs 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.

11. User shall employ reasonable safeguards to ensure that user’s use of EVMs will not result in any property damage, injury or death,

even if EVMs should fail to perform as described or expected.

12. User shall be solely responsible for proper disposal and recycling of EVMs consistent with all applicable federal, state, and local

requirements.

Certain Instructions.

User shall operate EVMs within TI’s recommended specifications and environmental considerations per the user’s

guide, accompanying documentation, and any other applicable requirements. Exceeding the specified ratings (including but not limited to
input and output voltage, current, power, and environmental ranges) for EVMs may cause property damage, personal injury or death. If
there are questions concerning these ratings, 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 result in unintended and/or inaccurate
operation and/or possible permanent damage to the EVM and/or interface electronics. Please consult the applicable EVM user's 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, some circuit components may have case temperatures greater than 60°C as long as the input and output are maintained
at a normal ambient operating temperature. These components include but are not limited to linear regulators, switching transistors, pass
transistors, and current sense resistors which can be identified using EVMs’ schematics located in the applicable EVM user's guide. When
placing measurement probes near EVMs during normal operation, please be aware that EVMs may become very warm. As with all
electronic evaluation tools, only qualified personnel knowledgeable in electronic measurement and diagnostics normally found in
development environments should use EVMs.

Agreement to Defend, Indemnify and Hold Harmless.

User agrees to defend, indemnify, and hold TI, its directors, officers, employees,

agents, representatives, affiliates, 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 and/or use of EVMs. User’s
indemnity shall apply whether Claims arise under law of tort or contract or any other legal theory, and even if EVMs fail to perform as
described or expected.

Safety-Critical or Life-Critical Applications.

If user intends to use EVMs in evaluations of safety critical applications (such as life support),

and a failure of a TI product considered for purchase by user for use in user’s product would reasonably be expected to cause severe
personal injury or death such as devices which are classified as FDA Class III or similar classification, then user must specifically notify TI
of such intent and enter into a separate Assurance and Indemnity Agreement.

Summary of Contents for LM3643EVM

Page 1: ...Using the LM3643EVM Evaluation Module User s Guide Literature Number SNVU399 August 2014 ...

Page 2: ... 6 2 3 Operation 6 3 Board Layout 7 4 Schematic 10 5 USB Interface Board and I2 C Compatible Interface Program 12 5 1 User Interface 13 5 2 Flags 14 5 3 I O Pin Controls 14 2 Table of Contents SNVU399 August 2014 Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated ...

Page 3: ...Layer 1 Routing 8 9 Middle Layer 2 Routing 9 10 Bottom Assembly Layer UNMIRRORED 9 11 LM3643EVM Schematic 10 12 LM3643 General User Interface 12 13 I2 C interface Fields 13 14 Write Buttons 13 15 Flags 14 16 I O Pin Controls 14 List of Tables 1 Device and Package Configurations 4 2 Bill of Materials 11 3 SNVU399 August 2014 List of Figures Submit Documentation Feedback Copyright 2014 Texas Instrum...

Page 4: ...the LM3643EVM 2 1 Input Output Connector Description Input GND These are the power input terminals for the driver The terminal block provides a power VIN and ground GND connection to allow the user to attach the EVM to a cable harness EN J12 This is the jumper used to enable the LED driver HWEN pin The driver will be enabled when the HWEN pin is high VIO and disabled when it is low GND Figure 1 En...

Page 5: ...connect a control signal directly to the TORCH TEMP pin of the connector or place a jumper between connector pins TORCH TEMP and PWM1 Pin PWM1 can be configured as ON or OFFvia the GUI software provided Removing the jumper and setting the TORCH TEMP pin to TEMP mode the TEMP function can be utilized via the externally connected NTC thermistor Figure 4 TORCH TEMP Jumper Settings TX J11 This pin is ...

Page 6: ...e cathode of LED1 LED2 respectively and Ground The user can first measure the resistor values accurately by applying a known current through connector DxF and Ground and measuring the voltage between DxS and GNDS Then during normal flash or torch operation the voltage measured across the resistor divided by the resistor value will equal the current through the resistor and the LED 2 2 Setup The in...

Page 7: ...The LM3643 will dissipate power especially during high current and long duration flash events Power will also be dissipated on the flash LEDs The EVM layout is designed to minimize temperature rise during operation It is recommended that in order to prevent overheating repeated flash events in very short time intervals is avoided 7 SNVU399 August 2014 LM3643EVM User s Guide Submit Documentation Fe...

Page 8: ...oard Layout www ti com Figure 7 Top Assembly Layer Figure 8 Middle Layer 1 Routing 8 LM3643EVM User s Guide SNVU399 August 2014 Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated ...

Page 9: ...m Board Layout Figure 9 Middle Layer 2 Routing Figure 10 Bottom Assembly Layer UNMIRRORED 9 SNVU399 August 2014 LM3643EVM User s Guide Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated ...

Page 10: ...2 SH D1 1 J22 1 2 3 4 5 6 7 8 9 10 J2 N2510 6002 RB 4 1 2 3 J14 DCON Ultra White 1 2 D1 Ultra White 1 2 D2 IN A2 GND A1 VOUT C1 HWEN C2 LED2 D1 TX D2 SW B1 LED1 D3 TORCH TEMP C3 SCL B3 STROBE B2 SDA A3 U1 LM3643YFF L1 DFE201610P 1R0M 10µF C5 10µF C4 10µF C1 10µF C2 LED1 LED2 GND J5 1 2 3 J3 GND 1 2 3 J4 GND PWM0 PWM1 PWM2 SCL SDA PWM1 TX PWM2 EN SW TORCH TEMP SCL SDA PWM0 Schematic www ti com 4 Sc...

Page 11: ...0 mil above insulator Samtec Inc TSW 104 07 G S 2 J22 Header TH 100mil 1pos Gold plated 230 mil above insulator Samtec Inc TSW 101 07 G S 1 L1 Inductor Shielded Metal Composite 1uH 2 6A 0 058 ohm SMD Toko DFE201610P 1R0M 1 LBL1 Thermal Transfer Printable Labels 0 650 W x 0 200 H 10 000 per roll Brady THT 14 423 10 1 R1 RES 0 ohm 5 0 25W 1206 Yageo America RC1206JR 070RL 1 R2 R3 RES 1 0k ohm 5 0 1W...

Page 12: ... provides all the control signals for the simple interface Power to the part must be provided externally A USB cable provided must be connected to the board from a PC The I2 C compatible interface program provides all of the control that the LM3643 part requires For proper operation the USB docking board should be plugged into the PC before the interface program is opened Once connected and the pr...

Page 13: ...er Interface the LM3643 GUI provides the user with access to all of the registers found on the device Through a combination of buttons drop down boxes and sliders the user can configure the LM3643 to perform in the desired mode Please note that no data is written to the device until the Write button found within the corresponding register is pressed Figure 14 Write Buttons 13 SNVU399 August 2014 L...

Page 14: ...e Tx Enable Button creates a continuous pulse train when depressed The Torch EN button toggles the LM3643 s TORCH TEMP pin high when pressed and low depressed The Ext Strobe Button toggles the Strobe pin high for the duration entered in the field next to the button The IR Strobe Button along with the period and width fields generate a continuous pulse train that can be used to generate a current p...

Page 15: ...ndling and use of EVMs and if applicable compliance in all respects with such laws and regulations 10 User has sole responsibility to ensure the safety of any activities to be conducted by it and its employees affiliates contractors or designees with respect to handling and using EVMs Further user is responsible to ensure that any interfaces electronic and or mechanical between EVMs and any human ...

Page 16: ...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 its own expense FCC Interference Statement ...

Page 17: ...érieur au gain maximal indiqué sont strictement interdits pour l exploitation de l émetteur Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright 2014 Texas Instruments Incorporated spacer Important Notice for Users of EVMs Considered Radio Frequency Products in Japan EVMs entering Japan are NOT certified by TI as conforming to Technical Regulations of Radio Law of ...

Page 18: ...esponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failur...

Page 19: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments LM3643EVM ...

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