LM3699EVM

LM3699EVM User Guide User's Guide Literature Number: SNVU343 MARCH 2014 Contents 1 2 Introduction ......................................................................................................................... 4 Set-Up ................................................................................................................................ 4 2.1 Required Equipment ..................................................................................................... 6 3 4 LM3699EVM Component Placement ....................................................................................... 7 LM3699EVM Schematic ......................................................................................................... 9 2 Table of Contents SNVU343 – MARCH 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated www.ti.com List of Figures ........................................................................................................ 1 LM3699EVM Picture 2 HL1A-C, HL2A-C and HL3A-C Star Jumper Configuration Settings (Blue Line Indicates Jumper Position) .... 5 3 LM3699EVM Configuration (Top Side) 4 LM3699EVM Top and Bottom Layers ..................................................................................... 7 ................................................................................... 4 6 List of Tables 1 Device and Package Configurations ...................................................................................... 4 SNVU343 – MARCH 2014 Submit Documentation Feedback List of Figures Copyright © 2014, Texas Instruments Incorporated 3 Introduction 1 www.ti.com Introduction The Texas Instruments LM3699EVM evaluation module (EVM) helps designers evaluate the operation and performance of the LM3699YFQ High-Efficiency PWM-only Three-String White LED Driver. The LM3699EVM can be easily configured to support 3 parallel LED strings with 2, 3, 4, 5, or 6 series LEDs. Table 1. Device and Package Configurations Component IC Package U1 LM3699 DSBGA (YFQ) Figure 1. LM3699EVM Picture 2 Set-Up This section describes the jumpers and connectors on the LM3699EVM as well as how to properly connect, set up, and use the LM3699YFQ. Input/Output Connector Description VL - INPUT is the power input terminal for the boost converter and the LM3699 VIN supply. This terminal provides a power (VBAT) connection to allow the user to attach the EVM to a power supply via a cable assembly with banana plugs. GND - INPUT is the power input terminal for the boost converter and the LM3699 GND. This terminal provides a common ground (GND) connection to allow the user to attach the EVM to a power supply via a cable assembly with banana plugs. P1 - Connector is the connection between the power input terminal VL and the LM3699 VIN supply. This connector allows the user to insert a current meter between terminals 1 and 2 to measure the LM3699 VIN current. A jumper must be installed when a current meter is not connected between terminals 1 and 2. 4 List of Tables SNVU343 – MARCH 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Set-Up www.ti.com P2 - Connector is the connection between the power input terminal VL and the boost inductor. This connector allows the user to insert a current probe between terminals 1 and 2 to measure the inductor current. A jumper must be installed when a current probe is not connected between terminals 1 and 2. P3 - Connector is the connection between the LM3699 boost convertor output and all three parallel LED strings. A jumper must be installed between terminals 1 and 2 for normal operation. P4 - Connector provides access to the LM3699 S1 input terminal. This terminal, along with S0, is used to select one of four full-scale current settings. This input can not be left floating and a jumper must be installed between either terminals 1 and 2 (GND) or 2 and 3 (VL). P5 - Connector provides access to the LM3699 S0 input terminal. This terminal, along with S1, is used to select one of four full-scale current settings. This input can not be left floating, and a jumper must be installed between either terminals 1 and 2 (GND) or 2 and 3 (VL). P6 - Connector provides access to the LM3699 ILOW input terminal. This terminal can be used to quickly reduce the LM3699 LED Brightness during camera flash operation. This input can not be left floating and a jumper must be installed between either terminals 1 & 2 (GND) to disable this feature or 2 and 3 (VL) to enable this feature. P7 - Test Point Connector provides access to the LM3699 HWEN and PWM inputs. An extra jumper is provided between terminals 2 (GND) and 3 (GND). A jumper can be installed between terminals 3 and 4 or terminals 4 and 5 to connect the PWM input to GND or VL respectively. The PWM jumper must be removed if an external signal generator is used to control the PWM duty cycle. HL1A, HL1B and HL1C - Connector provides a star connection to the HVLED1 string allowing the user to configure the HVLED1 string for 2, 3, 4, 5, or 6 series LEDs. HL2A, HL2B and HL2C - Connector provides a star connection to the HVLED2 string allowing the user to configure the HVLED2 string for 2, 3, 4, 5, or 6 series LEDs. HL3A, HL3B and HL3C - Connector provides a star connection to the HVLED3 string allowing the user to configure the HVLED3 string for 2, 3, 4, 5, or 6 series LEDs. 2 series LED 3 series LED 4 series LED 5 series LED 6 series LED 7 series LED No LED Figure 2. HL1A-C, HL2A-C and HL3A-C Star Jumper Configuration Settings (Blue Line Indicates Jumper Position) Note: The 7 series LED configuration should not be used due to the LM3699 24-V OVP setting and the LED maximum forward voltage of 3.5 V. LM3699EVM Configuration Figure 3 illustrates how to properly configure the LM3699EVM for three parallel four series (3p4s) LED string configuration. SNVU343 – MARCH 2014 Submit Documentation Feedback List of Tables Copyright © 2014, Texas Instruments Incorporated 5 Set-Up www.ti.com Figure 3. LM3699EVM Configuration (Top Side) 2.1 Required Equipment The following test equipment is required to evaluate the LM3699: • 5.5-V, 1.0-A Power Supply • Pulse Generator After supplying power to the LM3699EVM VL and GND inputs from the external power supply the user can quickly verify the LM3699EVM operation by moving the jumper on P7 between terminals 3 and 4 to P7 terminals 4 and 5. This will set the PWM input to 100% duty cycle and turn on all three led strings. Connecting an external pulse generator to P7 terminals 3 and 4 allows the user to verify operation while varying the PWM duty cycle and frequency. Refer to the LM3699 datasheet to set the correct pulse generator signal levels (Vih/Vil/ABSMAX). 6 List of Tables SNVU343 – MARCH 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated LM3699EVM Component Placement www.ti.com 3 LM3699EVM Component Placement Figure 4 shows the component placement on the top and bottom PCB layers of the LM3699EVM. Figure 4. LM3699EVM Top and Bottom Layers SNVU343 – MARCH 2014 Submit Documentation Feedback List of Tables Copyright © 2014, Texas Instruments Incorporated 7 LM3699EVM Component Placement www.ti.com LM3699EVM Component List Designator Description Manufacturer PartNumber Qty !PCB Printed Circuit Board Any SV601011A 1 CL CAP, CERM, 10uF, 25V, +/10%, X5R, 1206 MuRata GRM31CR61E106KA12L 3 CIN CAP, CERM, 2.2uF, 10V, +/- TDK 10%, X5R, 0402 C1005X5R1A225K050BC 1 COUT CAP, CERM, 1uF, 50V, +/10%, X7R, 1206 TDK C3216X7R1H105K 1 P7 Header, TH, 100mil, 5x1, Gold plated, 230 mil above insulator Samtec, Inc. TSW-105-07-G-S 1 D1 Diode, Schottky, 40V, 0.25A, ON Semiconductor SOD-523 NSR0240V2T1G 1 GND Standard Banana Jack, Insulated, Black Keystone 6092 1 GND_S, HL1-A, HL1-C, Header, TH, 100mil, 2x1, HL2-A, HL2-C, HL3-A, HL3- Gold plated, 230 mil above C, IH1, IH2, IH3, P1, P2, P3, insulator VL_S Samtec, Inc. TSW-102-07-G-S 14 H1, H2, H3, H4 Machine Screw, Round, #440 x 1/4, Nylon, Philips panhead B and F Fastener Supply NY PMS 440 0025 PH 4 H5, H6, H7, H8 Standoff, Hex, 0.5"L #4-40 Nylon Keystone 1902C 4 LED, White, SMD Rohm SML312WBCW1 21 HL1-B, HL2-B, HL3-B Header, TH, 100mil, 4x1, Gold plated, 230 mil above insulator Samtec, Inc. TSW-104-07-G-S 3 P3, P4, P5, P6 Header, TH, 100mil, 3x1, Gold plated, 230 mil above insulator Samtec, Inc. TSW-103-07-G-S 3 L1 INDUCTOR POWER 10UH 1.0A SMD TDK VLF4014ST-100M1R0 1 LBL1 Thermal Transfer Printable Labels, 0.650" W x 0.200" H - 10,000 per roll Brady THT-14-423-10 1 RHWEN RES, 10k ohm, 5%, 0.063W, Vishay-Dale 0402 CRCW040210K0JNED 5 RSH1, RSH2, RSH3 RES 10 OHM 1/8W .1% 0805 SMD Bourns CRT0805-BY-10R0ELF 3 SH-JMP1, SH-JMP2, SHJMP3, SH-JMP4, SH-JMP5, SH-JMP6, SH-JMP7, SHJMP8, SH-JMP9 Shunt, 100mil, Gold plated, Black 3M 969102-0000-DA 9 U1 LM3699 High-Efficiency Three-String White LED Driver, YFQ0012AEAC Texas Instruments LM3699YFQ 1 VL Standard Banana Jack, Insulated, Red Keystone 6091 1 H10, H15, H23, H31, H36 8 H11, H16, H24, H32, H12, H20, H25, H33, H13, H21, H26, H34, H14, H22, H30, H35, List of Tables SNVU343 – MARCH 2014 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated LM3699EVM Schematic www.ti.com 4 LM3699EVM Schematic SNVU343 – MARCH 2014 Submit Documentation Feedback List of Tables Copyright © 2014, Texas Instruments Incorporated 9 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. 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