TPS92629Q1EVM

www.ti.com Table of Contents User’s Guide TPS92629-Q1 Evaluation Module User's Guide ABSTRACT The TPS92629-Q1 Evaluation Module (EVM) user's guide describes the characteristics of the device and the operation of EVM. This user's guide includes a complete schematic diagram, printed-circuit board layout, and bill of materials (BOM). Table of Contents 1 Introduction.............................................................................................................................................................................2 1.1 Features............................................................................................................................................................................. 2 1.2 Typical Application............................................................................................................................................................. 2 2 TPS92629Q1EVM Description............................................................................................................................................... 3 2.1 Connector Map...................................................................................................................................................................3 2.2 Jumper Map....................................................................................................................................................................... 4 3 Test Setup................................................................................................................................................................................5 4 Schematic, Bill of Materials, and Layout.............................................................................................................................. 5 4.1 Schematics.........................................................................................................................................................................5 4.2 Layout................................................................................................................................................................................ 6 5 Bill of Materials (BOM)............................................................................................................................................................7 List of Figures Figure 2-1. TPS92629Q1EVM Board.......................................................................................................................................... 3 Figure 4-1. Schematic..................................................................................................................................................................5 Figure 4-2. Layout........................................................................................................................................................................6 List of Tables Table 2-1. Connector Map........................................................................................................................................................... 3 Table 2-2. Jumper Map................................................................................................................................................................ 4 Table 3-1. TPS92629Q1EVM Parameters...................................................................................................................................5 Table 5-1. Bill of Materials............................................................................................................................................................7 Trademarks All trademarks are the property of their respective owners. SLUUCQ6 – DECEMBER 2022 Submit Document Feedback TPS92629-Q1 Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 1 Introduction www.ti.com 1 Introduction The TPS92629Q1EVM helps designers evaluate the operation and performance of the TPS92629-Q1, a linear single-channel LED driver with full LED diagnostic and multi fault report out for automotive lighting applications. For linear LED drivers used in automotive lighting end equipment, thermal is a big design challenge. TPS92629Q1 can help designers to easily deal with the challenge, and TPS92629Q1EVM can help to validate those features. 1.1 Features The EVM has the following features: • • • • • LED short-to-GND, short-to-battery, open-circuit detection and auto-recovery Multi fault report out through the different voltage levels of short-to-GND, short-to-battery, open-circuit, and thermal shutdown Open fault mask during low-dropout mode Analog and PWM dimming Thermal sharing with external resistors when supply voltage is high 1.2 Typical Application The EVM is used in the following applications: • • • • 2 Automotive exterior small light: blind spot detection indicator, door handle, charging inlet Automotive interior light: overhead console, reading lamp Automotive exterior rear light: rear lamp, center high mounted stop lamp, side marker General-purpose LED driver applications TPS92629-Q1 Evaluation Module User's Guide SLUUCQ6 – DECEMBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated www.ti.com TPS92629Q1EVM Description 2 TPS92629Q1EVM Description This description section describes the connectors and jumpers of TPS92629Q1EVM. Figure 2-1 displays the TPS92629Q1EVM Board. Figure 2-1. TPS92629Q1EVM Board 2.1 Connector Map The EVM has the following connectors. Table 2-1 shows their functions. Table 2-1. Connector Map Connector Description VBAT This connector is a power supply input. GND This connector is a device part ground. VBAT+ SUPPLY. This connector shows the positive input supply voltage. EN/PWM EN/PWM. This connector shows a device enable input and PWM input. DIAGEN DIAGEN. This connector shows the LED open dagnotics enable inout. ADIM ADIM. This connector shows a device PWM input for analog dimming. FAULT Fault. This connector is the FAULT status output of the LED driver. Mult_FAULT Mult_Fault.This connector is the multi fault status output of the LED driver. OUT This connector shows the output voltage. SLUUCQ6 – DECEMBER 2022 Submit Document Feedback TPS92629-Q1 Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 3 TPS92629Q1EVM Description www.ti.com 2.2 Jumper Map The EVM provides some jumpers for designers to conveniently validate the device. Table 2-2 shows the jumper map. Table 2-2. Jumper Map Function Designator Open detect J1 LED open LED string connect to Out LED string open J2 Single LED short Short single LED in LED string 3 LED series in LED string J3 Two LEDs short Short two LEDs in LED string 3 LED series in LED string J4 LED string short Short all LEDs in LED string 3 LED series in LED string PWM Enable device and PWM (PWM connected to SUPPLY through a resistor) Disable device and PWM or use external control signal ADIM Enable analog dimming(ADIM connect to SUPPLY through a resistor) Disable ADIM or use external control signal Short detect EN/PWM dimming input Analog dimming Input 4 J5 J6 Attached Function With Shunt TPS92629-Q1 Evaluation Module User's Guide Without Shunt SLUUCQ6 – DECEMBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated www.ti.com Test Setup 3 Test Setup Table 3-1 shows the typical parameters for the TPS92629Q1EVM. The typical input voltage range is from 9 V to 20 V. The full-scale output current of the TPS92629Q1EVM is 250 mA. Users can adjust the output current by changing the sensing resistor (Rsns). Table 3-1. TPS92629Q1EVM Parameters Parameters Value Input voltage (V) typical: 9-20 Output current per channel (mA) 250mA LED per channel 3s1p LED string Rsns (Ω) 1.8 Rres (Ω) 25 Follow these steps for the EVM test setup: 1. Set the voltage of the dc power supply to 12 V and set the current limit to 1 A. 2. Connect the positive and negative outputs of the power supply to connectors VBAT and GND respectively on the EVM board. 3. With the default jumper connections, the board must begin operating after the power supply is turned on. Modify the jumpers for other operating modes. 4. For short-to-battery detection, set voltage of dc power to 10.5V and the current limit to 2A, avoid long-term failure condition for the risk of damaging LEDs. 4 Schematic, Bill of Materials, and Layout 4.1 Schematics Figure 4-1 shows the TPS92629Q1EVM schematic. R1 U1 D1 C1 1µF 50V 8 C3 100nF 50V C2 1µF 50V GND EN/PWM 1 DIAGEN 2 ADIM 3 FAULT 4 R12 6.26k GND GND SUPPLY 7 IN EN/PWM OUT DIA GEN RES IN 3.6 R2 3.6 6 2 1 R3 5 75R4 ADI M FAULT OUT_TOT OUT_TOT 9 GND J1 - Open Test 75R5 75 PTPS92629QDGNRQ 1 2 VBAT+ 3 VBAT 2 1 D2 1 Multi_FAULT 3 GND OUT_TOT GND FAULT GND VBAT+ DIAGEN EN/PWM R9 10.0k 1 2 J5 - EN/PWM R7 10.0k R10 67.3k ADIM VBAT+ FAULT GND 1 2 DIAGEN GND OUT OUT_TOT GND ADIM EN/PWM D4 2 1 J6 - ADIM R11 10.0k J4 - Short Test DIAGEN OUT_TOT ADIM EN/PWM GND GND GND 2 R6 31.6k D3 J3 - Short Test D3 1 R8 73.2k C4 10nF 50V 2 1 1 VBAT+ 3 GND 2 R13 10.0k 1 J2 - Short Test D2 J7 - Multi_FAULT GND GND Figure 4-1. Schematic SLUUCQ6 – DECEMBER 2022 Submit Document Feedback TPS92629-Q1 Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 5 Schematic, Bill of Materials, and Layout www.ti.com 4.2 Layout Figure 4-2 illustrates the EVM board layout. Figure 4-2. Layout 6 TPS92629-Q1 Evaluation Module User's Guide SLUUCQ6 – DECEMBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated www.ti.com Bill of Materials (BOM) 5 Bill of Materials (BOM) Table 5-1 lists the TPS92629Q1EVM BOM. Table 5-1. Bill of Materials Designator Quantity Description Part Number Manufacturer C1, C2 2 CAP, CERM, 1 µF, 50 V,+/- 10%, X7R, AECQ200 Grade 1, 0805 08055C105K4Z2A AVX C3 1 CAP, CERM, 0.1 µF, 50 V,+/- 10%, X7R, AEC-Q200 Grade 0, 0603 06035C104K4Z4A AVX C4 1 CAP, CERM, 0.01 uF, 50 V, +/- 10%, X7R, 0603 C1608X7R1H103K080AA TDK D1 1 DIODE, SCHOTTKY, 60V, 3A, DO214AC SK36A-LTPMSCT-ND Micro Commercial Co D2, D3, D4 3 LED Uni-Color Red 71lm 632nm Chip LED 3-Pin SMD T/R LR H9PP-HZJZ-1-1-350-R18Osram Opto Z R1, R2 2 RES, 3.6, 5%, 0.1 W, AEC-Q200 Grade 0, 0603 CRCW06033R60JNEA Vishay-Dale R3, R4, R5 3 RES, 75, 5%, 1 W, AEC-Q200 Grade 0, 2512 CRCW251275R0JNEG Vishay-Dale R6 1 RES, 31.6 k, 0.1%, 0.1 W, 0603 RT0603BRD0731K6L Yageo America R7, R9, R11, R13 2 RES, 10.0 k, 1%, 0.1 W, 0603 RCG060310K0FKEA Vishay Draloric R8 1 RES, 73.2 k, 1%, 0.1 W, 0603 RC0603FR-0773K2L Yageo R10 1 RES, 67.3 k, 0.1%, 0.1 W, 0603 RT0603BRD0767K3L Yageo America R12 1 RES, 6.26 k, 0.1%, 0.1 W, 0603 RT0603BRD076K26L Yageo America SH-J1, SHJ2, SH-J3, SH-J4, SHJ5, SH-J6 6 Shunt, 100mil, Flash Gold, Black SPC02SYAN Sullins Connector Solutions J1 - Open Test, J2 Short Test D2, J3 - Short Test D3, J4 Short Test, J5 - EN/PWM, J6 - ADIM 6 Header, 2.54mm, 2x1, Tin, TH TSW-102-23-T-S Samtec J7 Multi_FAULT 1 Header, 100mil, 1pos, Gold, TH TSW-101-07-G-S Samtec U1 1 Single-Channel, Automotive High Side LED Driver With Thermal Sharing Control TPS92629QDGNRQ1 Texas Instruments SLUUCQ6 – DECEMBER 2022 Submit Document Feedback TPS92629-Q1 Evaluation Module User's Guide Copyright © 2022 Texas Instruments Incorporated 7 IMPORTANT NOTICE AND DISCLAIMER TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATA SHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. 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