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This user's guide describes the module used to evaluate characteristics, operation, and use of the
LP8863-Q1 automotive LED backlight driver. This document includes a schematic diagram, PCB layout,
and bill of materials (BOM).
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Trademarks
Windows is a registered trademark of Microsoft Corporation.
All other trademarks are the property of their respective owners.
SNVU558 - February 2017
Submit Documentation Feedback
The LP8863EVM Evaluation Module
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Copyright © 2017, Texas Instruments Incorporated
Contents
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The LP8863EVM Evaluation Module
User's Guide
SNVU558 - February 2017
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Related Manuals for Texas Instruments LP8863EVM
Summary of Contents for Texas Instruments LP8863EVM
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Page 1: Table Of Contents
......................LED Load Board Trademarks Windows is a registered trademark of Microsoft Corporation. All other trademarks are the property of their respective owners. SNVU558 – February 2017 The LP8863EVM Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 2: Introduction
The EVM contains one LP8863-Q1 LED driver with boost circuit and a Tiva Launchpad evaluation circuit to provide control signals for LED driver. Table 1. LED DRIVER PACKAGE LP8863-Q1 HTSSOP Figure 1. LP8863-Q1 Evaluation Board (Top View) The LP8863EVM Evaluation Module SNVU558 – February 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 3: Setup
Figure 2. LP8863-Q1 Evaluation Board (Bottom View) Setup This section describes the jumpers and connectors on the EVM as well as how to properly connect and setup to use the LP8863EVM. Default resistor values and jumper positions are set to: •... -
Page 4: Input/Output Connector/Header Descriptions
J8 – GND— This banana socket is the power input (GND) terminal for the boost converter. The terminal provides a power ground (GND) connection to allow the user to attach the EVM to a power supply. The LP8863EVM Evaluation Module SNVU558 – February 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... - Page 5 J33 – Connector— This connector is to connect LED load board to EVM. J34 – GND— These headers are probing points of GND. SNVU558 – February 2017 The LP8863EVM Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
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Page 6: Lp8863Evm Setup
EVM connector. The I C-compatible interface program provides all of the controls that the LP8863-Q1 device requires. Figure 3. LP8863EVM With LED Load Board Connected The LP8863EVM Evaluation Module SNVU558 – February 2017 Submit Documentation Feedback... -
Page 7: Installation Guide For Gui Program (Windows 7-Compatible)
• Click “Next” button on this setup screen. Figure 4. LP8863_EVM_GUI Setup • Check ”I accept the agreement” and press ”Next” button again. SNVU558 – February 2017 The LP8863EVM Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... - Page 8 • Choose the folder name of GUI to be installed, then press ”Next” button or simply press ”Next” button. Figure 6. Installation Directory The LP8863EVM Evaluation Module SNVU558 – February 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
- Page 9 Figure 7. Completing the LP8863_EVM_GUI Setup Wizard • Initial window of GUI. Prepare hardware connection after this window, as described in the following sections. Figure 8. LP8863_EVM_GUI Home Page SNVU558 – February 2017 The LP8863EVM Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
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Page 10: Quick Start-Up Procedure
On PWM input control, check ”Enable” box of PWM input, select frequency and duty from drop-down boxes, and press ”Update” button: LED turns on at adjusted brightness level by PWM input. The LP8863EVM Evaluation Module SNVU558 – February 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 11: Additional Control Options
• LED driver headroom voltage can be controlled by led_driver_headroom. Use drop-down box to select desired headroom voltage. SNVU558 – February 2017 The LP8863EVM Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... - Page 12 Control windows below can be used for independent dimming where each LED string is controlled independently. See the LP8863-Q1 data sheet for independent dimming control. The LP8863EVM Evaluation Module SNVU558 – February 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
- Page 13 Firmware version of the Tiva Launchpad is shown here and the latest version is 1.0.6. • Individually programmed register values can be saved or loaded by file menu on top of the GUI. SNVU558 – February 2017 The LP8863EVM Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
- Page 14 • Register tab can be selected by pressing icon on left side of GUI. • Initially, all register values are hidden as below. The LP8863EVM Evaluation Module SNVU558 – February 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
- Page 15 “Read” button is used to read only selected register on “Register name” column to reduce read time. • Each register bit can be changed by double click each bit cell. SNVU558 – February 2017 The LP8863EVM Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
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Page 16: Instructions For Standalone Evaluation
• Field View shows register bit name, type, and values: Instructions for Standalone Evaluation The LP8863EVM can be used for standalone evaluation (without evaluation software and PC connection). These are minimum requirements to use LP8863EVM as a standalone mode: •... -
Page 17: Lp8863Evm Board Stackup
LP8863EVM Board Stackup www.ti.com The LP8863EVM must be modified to support standalone mode from its default settings described as follows: 1. Remove jumper on J19. 2. Connect pin 3 and 4 of J14 to connect V output from LP8863-Q1 to VDDIO input. -
Page 18: Lp8863Evm Component Placement
LP8863EVM Component Placement www.ti.com LP8863EVM Component Placement Figure 11. LP8863EVM Component Placement (Top Layer) Figure 12. LP8863EVM Component Placement (Bottom Layer) The LP8863EVM Evaluation Module SNVU558 – February 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 19: Lp8863Evm Component List
Standard Banana Jack, Insulated, Red 6091 6091 J6, J8 Standard Banana Jack, Insulated, Black 6092 6092 Header, 100mil, 1x1, Gold, TH Samtec_HTSW-101- HTSW-101-09-G-S 09-x-S SNVU558 – February 2017 The LP8863EVM Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... - Page 20 R21, R22, R23, R37, RES, 0 ohm, 5%, 0.1W, 0603 MCR03EZPJ000 R38, R40, R41, R44, R45, R56, R60, R61, R62, R67, R73, R74 The LP8863EVM Evaluation Module SNVU558 – February 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
- Page 21 Output, 5.5 to 42 V Input, 5-pin PFM (KVU), -40 to 125 degC, Green (RoHS & no Sb/Br) Crystal, 16MHz, SMD TXC_7V 7V-16.000MAAE-T SNVU558 – February 2017 The LP8863EVM Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
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Page 22: Lp8863Evm Schematics
PWMC1 PWMC SDIC1 SDIC TCA9406DCUR 100k 0.1uF 0.1uF TXB0304RUTR TXB0304RUTR TXB0304RUTR Copyright © 2017, Texas Instruments Incorporated Figure 13. LP8863EVM Schematic(LED driver circuit) The LP8863EVM Evaluation Module SNVU558 – February 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... - Page 23 0603 TSW-109-07-G-S 0603 0603 0603 Need wide trace for VBOOST Copyright © 2017, Texas Instruments Incorporated Figure 14. LP8863EVM Schematic (Tiva Launchpad circuit) SNVU558 – February 2017 The LP8863EVM Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
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Page 24: Using The Lp8863Evm
3. The default PWM output frequency setting is 9.8 kHz. Table 3. R_FSET (kΩ) BOOST SW FREQUENCY (kHz) 3.92 4.75 5.76 7.87 1221 2441 17.8 4883 42.2 9766 19531 The LP8863EVM Evaluation Module SNVU558 – February 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... -
Page 25: Setting The Led String Current
NOTE: The LED board is not included with the EVM -- contact your local TI sales representative if board is needed. Figure 15. LED Load Board (Top View) SNVU558 – February 2017 The LP8863EVM Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated... - Page 26 LED Load Board www.ti.com Figure 16. LED Load Board (Schematic Diagram) The LP8863EVM Evaluation Module SNVU558 – February 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
- Page 27 J130 Header, TH, 100mil, 7x1, Gold plated, Samtec TSW-107-07-G-S 230 mil above insulator D1…D120 Cool White SMD LED Xlamp mL-B Cree MLBAWT-A1-0000- 000W51 SNVU558 – February 2017 The LP8863EVM Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
- Page 28 STANDARD TERMS FOR EVALUATION MODULES 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.
- Page 29 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.
- Page 30 【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. 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。 2. 実験局の免許を取得後ご使用いただく。 3. 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。http:/ /www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 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.
- Page 31 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. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2017, Texas Instruments Incorporated...
- Page 32 IMPORTANT NOTICE FOR TI DESIGN INFORMATION AND RESOURCES Texas Instruments Incorporated (‘TI”) technical, application or other design advice, services or information, including, but not limited to, reference designs and materials relating to evaluation modules, (collectively, “TI Resources”) are intended to assist designers who are developing applications that incorporate TI products;...
- Page 33 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments LP8863EVM...