Related Manuals for Texas Instruments LM3643EVM
Summary of Contents for Texas Instruments LM3643EVM
- Page 1 Using the LM3643EVM Evaluation Module User's Guide Literature Number: SNVU399 August 2014...
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Page 2: Table Of Contents
Operation ........................Board Layout ......................... Schematic ............ USB Interface Board and I C-Compatible Interface Program ......................User Interface ........................Flags ......................I/O Pin Controls Table of Contents SNVU399 – August 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... - Page 3 C interface Fields ........................ Write Buttons ......................... Flags ......................I/O Pin Controls List of Tables ..................Device and Package Configurations ......................Bill of Materials SNVU399 – August 2014 List of Figures Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated...
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Page 4: Introduction
LM3643EVM User's Guide Introduction The Texas Instruments LM3643EVM evaluation module (EVM) helps designers evaluate the operation and performance of the LM3643 High-Current LED driver. The device offers configurability via I compatible interface. It can be enabled in Flash or Torch mode via the I C interface or externally using the STROBE and TORCH/TEMP pins. -
Page 5: Strobe Jumper Settings
C lines. For independent control of the I C lines, do not connect the VIO jumper to either the 3.3 V or the VIN pin. SNVU399 – August 2014 LM3643EVM User's Guide Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... -
Page 6: Setup
Input Capacitors from the Inductor and eliminate their filtering effect to the Inductor Current. J17 and J18: LED Current measurements -The LM3643EVM provides a way to accurately measure the LED current through both LEDs on board. Resistors R1 & R2 (0.1 Ω) are placed between the cathode of LED1 &... -
Page 7: Board Layout
Figure 9 Figure 10 show the board layout for the LM3643EVM. The EVM offers resistors, capacitors, and jumpers to enable the device and to configure it as desired. The LM3643 will dissipate power, especially during high current and long duration flash events. Power will also be dissipated on the flash LEDs. -
Page 8: Top Assembly Layer
Board Layout www.ti.com Figure 7. Top Assembly Layer Figure 8. Middle Layer 1 Routing LM3643EVM User's Guide SNVU399 – August 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... -
Page 9: Middle Layer 2 Routing
Board Layout www.ti.com Figure 9. Middle Layer 2 Routing Figure 10. Bottom Assembly Layer (UNMIRRORED) SNVU399 – August 2014 LM3643EVM User's Guide Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... -
Page 10: Schematic
TORCH/TEMP SH-D1 LED1 SH-EN1 1.0k LM3643YFF SH-D2 1.0k TORCH/TEMP 3.3V Ultra White Ultra White SH-VIO1 100k ohm 49.9k PWM0 SH-TORCH1 Figure 11. LM3643EVM Schematic LM3643EVM User's Guide SNVU399 – August 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... -
Page 11: Bill Of Materials
Thermistor NTC, 100k ohm, 5%, 0402 MuRata NCP15WF104J03RC IC LED DRVR PHOTO FLASH Dual 1.5A SMD, YFF0012AEAD Texas Instruments LM3643YFF VIN1 Test Point, TH, Compact, Red Keystone 5005 SNVU399 – August 2014 LM3643EVM User's Guide Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... -
Page 12: Compatible Interface Program
USB2ANY interface box and interface software. The LM3643EVM has the means to “plug into” the USB docking board. The USB docking board 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. -
Page 13: User Interface
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 SNVU399 – August 2014 LM3643EVM User's Guide Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated... -
Page 14: Flags
Figure 15. Flags I/O Pin Controls The LM3643EVM provides the user with the capability to control the TORCH, STROBE and TX inputs without the need of an external supply. The 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. - Page 15 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.
- Page 16 RADIO FREQUENCY REGULATORY COMPLIANCE INFORMATION FOR EVALUATION MODULES Texas Instruments Incorporated (TI) evaluation boards, kits, and/or modules (EVMs) and/or accompanying hardware that is marketed, sold, or loaned to users may or may not be subject to radio frequency regulations in specific countries.
- Page 17 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. 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”...
- Page 18 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue.
- Page 19 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments LM3643EVM...
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