Order Now Product Folder Support & Community Tools & Software Technical Documents LP8863-Q1 SNVSAV5 – MARCH 2017 LP8863-Q1 Automotive Display LED-Backlight Driver With Six 150-mA Channels 1 Features 2 Applications • • • 1 • • • • • Qualified for Automotive Applications AEC-Q100 Qualified With the Following Results: – Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Input Voltage Operating Range 3 V to 48 V Six High-Precision Current Sinks – Current Matching 1% (typical) – Dimming Ratio 32 000:1 Using 152-Hz LED Output PWM Frequency – Up to 16-bit LED Dimming Resolution With SPI, I2C, or PWM Input – Automatically Detects Used LED Strings and Adjusts LED-Channel Phase Shift – Independent Current Control for Each Channel Hybrid PWM and Current Dimming Function Up to 47-V VOUT Boost or SEPIC DC-DC Controller – Switching Frequency 300 kHz to 2.2 MHz – Boost Spread Spectrum for Reduced EMI – Boost Sync Input to Set Boost Switching Frequency From an External Clock – Integrated Charge Pump Supports Low VIN Conditions Such as Cold Crank – Output Voltage Automatically Discharged When Boost is Disabled Extensive Fault Diagnostics Backlight for: – Automotive Infotainment – Automotive Instrument Clusters – Smart Mirrors – Heads-Up Displays (HUD) – Central Information Displays (CID) – Audio-Video Navigation (AVN) 3 Description The LP8863-Q1 is an automotive high-efficiency LED driver with boost controller. The six high-precision current sinks support phase shifting that is automatically adjusted based on the number of channels in use. Current sink brightness can be controlled individually and globally through the SPI or I2C interface; brightness can also be globally controlled with PWM input. The boost controller has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. A wide-range adjustable frequency allows the LP8863-Q1 to avoid disturbance for AM radio band. The LP8863-Q1 supports built-in hybrid PWM and current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency. To request a full data sheet or other design resources, request LP8863-Q1. Simplified Schematic Q2 RISENSE VIN CIN C1N C2x VOUT RFB1 Q1 GD GD ISNS PGND PART NUMBER LP8863-Q1 COUT (1) For all available packages, see the orderable addendum at the end of the datasheet. System Efficiency 95 FB VDD DISCHARGE GND LP8863-Q1 LED0 Boost Efficiency (%) VLDO VDDIO LED1 IFSEL LED2 EN INT LED3 SDO_PWM LED4 SDI_SDA LED5 SCLK_SCL SS_ADDRSEL BST_SYNC BODY SIZE (NOM) 9.70 mm × 4.40 mm ISNSGND CVDD CLDO PACKAGE HTSSOP (38) RFB2 RSENSE PGND C1P VDD SD VSENSE_P CPUMP CPUMP VSENSE_N RSD CPUMP Device Information(1) D1 L1 ISET PWM_FSET BST_FSET RISET RPWM_FSET 90 85 80 VOUT = 29 V VOUT = 36 V VOUT = 42 V VOUT = 46 V RBST_FSET Copyright © 2017, Texas Instruments Incorporated 75 0 1 10 20 30 40 50 60 Brightness (%) 70 80 90 100 D007 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. LP8863-Q1 SNVSAV5 – MARCH 2017 www.ti.com Table of Contents 1 2 3 4 5 6 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Device Comparison Table..................................... Device and Documentation Support.................... 6.2 6.3 6.4 6.5 6.6 1 1 1 2 2 3 7 6.1 Device Support.......................................................... 3 Receiving Notification of Documentation Updates.... Community Resources.............................................. Trademarks ............................................................... Electrostatic Discharge Caution ................................ Glossary .................................................................... 3 3 3 3 3 Mechanical, Packaging, and Orderable Information ............................................................. 3 4 Revision History DATE REVISION NOTES March 2017 * Initial release 5 Device Comparison Table LP8863-Q1 LP8860-Q1 LP8862-Q1 LP8861-Q1 TPS61193-Q1 TPS61194-Q1 TPS61196-Q1 3 V to 48 V 3 V to 48 V 4.5 V to 45 V 4.5 V to 45 V 4.5 V to 45 V 4.5 V to 45 V 8 V to 30 V 6 4 2 4 3 4 6 150 mA 150 mA 160 mA 100 mA 100 mA 100 mA 200 mA I2C/SPI support Yes Yes No No No No No SEPIC support Yes No Yes Yes Yes Yes No VIN range Number of LED channels LED current / channel 2 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: LP8863-Q1 LP8863-Q1 www.ti.com SNVSAV5 – MARCH 2017 6 Device and Documentation Support 6.1 Device Support 6.1.1 Third-Party Products Disclaimer TI'S PUBLICATION OF INFORMATION REGARDING THIRD-PARTY PRODUCTS OR SERVICES DOES NOT CONSTITUTE AN ENDORSEMENT REGARDING THE SUITABILITY OF SUCH PRODUCTS OR SERVICES OR A WARRANTY, REPRESENTATION OR ENDORSEMENT OF SUCH PRODUCTS OR SERVICES, EITHER ALONE OR IN COMBINATION WITH ANY TI PRODUCT OR SERVICE. 6.2 Receiving Notification of Documentation Updates To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper right corner, click on Alert me to register and receive a weekly digest of any product information that has changed. For change details, review the revision history included in any revised document. 6.3 Community Resources The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support. 6.4 Trademarks E2E is a trademark of Texas Instruments. 6.5 Electrostatic Discharge Caution These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 6.6 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 7 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: LP8863-Q1 3 PACKAGE OPTION ADDENDUM www.ti.com 8-Apr-2017 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (°C) Device Marking (4/5) LP8863ADCPRQ1 PREVIEW HTSSOP DCP 38 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 125 LP8863AQ1 LP8863BDCPRQ1 PREVIEW HTSSOP DCP 38 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR -40 to 125 LP8863BQ1 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. 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