MAX20096EVSYS#

Evaluates: MAX20096 MAX20096 Evaluation Kit/ MAX20096 Evaluation System General Description The MAX20096 evaluation kit (EV kit) provides a proven design to evaluate the MAX20096 dual-channel synchronous buck, high-brightness LED controller with and without SPI interface for high-power HB LED drivers. The EV kit is set up as a dual-buck LED driver and operates from a 4.5V to 65V DC supply voltage. The EV kit is configured to deliver up to 3A in each string of LEDs for both channels. The total voltage of the string can vary from 3V to 55V. The anode of the LED string should be connected to the LED+ terminal; the cathode should be connected to PGND. Benefits and Features Quick Start Required Equipment ● MAX20096 EV kit ● MINIQUSB interface board and USB cable ● 5V to 65V, 4A DC power supply ● Four digital voltmeters ● Two series-connected HB LED strings rated to no less than 4A ● Two current probes to measure the HB LED current ● Small flat-blade screwdriver to turn the potentiometer wiper adjustment pin ● 0A to 3A LED Current Note: In the following sections, software-related items are identified by bolding. Text in bold refers to items directly from the EV kit software. Text in bold and underlined refers to items from the Windows operating system. ● Demonstrates SPI Interface Capability Procedure ● 4.5V to 65V Input Voltage ● Drives 1–16 LEDs in Each of the Dual Channels ● Demonstrates PWM Dimming and Analog Dimming Using the SPI Interface ● Demonstrates LED Open/Short Faults Monitoring Using the SPI Interface 1) Visit www.maximintegrated/evkitsoftware to download the latest version of the EV kit software, MAX20096EVKit.exe. 2) Install the EV kit software GUI on your PC by running the MAX20096EVKit.exe program. The EV kit software application will be installed with the required MINIQUSB drivers. 3) Connect the MINIQUSB board to J7 and J14 on the EV kit. 4) If connecting multiple EV kits in a daisy-chain, see the Daisy-Chain Connections section. 5) Verify jumper settings, as shown in Table 1 and Table 2. 6) Connect the power supply to the IN and GND1 terminals on the EV kit. 7) Connect the LED loads to the LED1+/GND1 and LED2+/GND2 terminals on the EV kit. 8) Connect the MINIQUSB board to the PC running the software with the provided USB cable. 9) For more details on how to use the GUI and all the features available, click on the GUI Help menu item. ● Monitors the LED Current Using the Graphical User Interface (GUI) ● Proven PCB and Thermal Design ● Fully Assembled and Tested MAX20096 EV Kit Files FILE DESCRIPTION MAX20096EVKit.exe Windows® GUI Installer Ordering Information appears at end of data sheet. Windows is a registered trademark and registered service mark of Microsoft Corporation. 319-100104; Rev 3; 6/19 Evaluates: MAX20096 MAX20096 Evaluation Kit/ MAX20096 Evaluation System Figure 1. MAX20096 Evaluation Kit Software (GUI Screenshot) Table 1. Jumper Settings (J1–J6, J12, J15) SHUNT POSITION JUMPER 1-2 2-3 OPEN J1 LED2 analog current set by potentiometer — LED2 external analog current control on REFI2 J2 Single input supply (VIN) — Dual input supply (VIN and VIN2) J3 DIM2 pullup to VCC DIM2 pulldown to GND DIM2 external control J4 IC powered by IN Bypass VCC regulator, VIN range is 4V to 5.5V — J5 DIM1 pullup to VCC DIM1 pulldown to GND DIM1 external control J6 LED1 analog current set by potentiometer — LED1 external analog current control on REFI1 J12 VIO provided by MINIQUSB board — External VIO supply J15 RESETB pullup — No RESETB pullup Table 2. Jumper Settings for Single Board and Daisy-Chain (J10, J11, J13) SHUNT POSITION JUMPER SINGLE BOARD DAISY-CHAIN (FIRST BOARD) J10 1-2 1-2 2-3 2-3 J11 Open 1-2 Open 2-3 J13 1-2 2-3 2-3 2-3 www.maximintegrated.com DAISY-CHAIN (MIDDLE BOARDS) DAISY-CHAIN (LAST BOARD) Maxim Integrated │  2 Evaluates: MAX20096 MAX20096 Evaluation Kit/ MAX20096 Evaluation System Daisy-Chain Connections When connecting multiple EV kits in a daisy-chain, only connect to the MINIQUSB board from the first EV kit. The other EV kits do not require the MINIQUSB boards; if present, they should not be connected through the USB. Connect J9 of the first EV kit to J8 of the next EV kit, then connect J9 of the second board to J8 of the next board, and so on. Note: Do not connect to J9 of the last board or to J8 of the first board. Configure the jumpers on these boards per Table 2. The EV kit software automatically detects the daisy-chain configuration when it first starts up and connects. If this configuration is changed while the software is running, the user must reconnect by pressing F9 or selecting Connect from the Device menu bar. Select which board to be controlled by the software from the Board Selection drop-down list. The 0 corresponds to the first EV kit board in the daisy-chain; the highest numbered board is the last one in the daisy-chain. Detailed Description The MAX20096 EV kit demonstrates the MAX20096 dual-channel synchronous buck controller for high-power HB LED drivers with and without SPI interface. The IC consists of a dual-channel, fully synchronous step-down converter with external MOSFETs. The IC also includes the SPI interface, which can be used for PWM dimming, analog dimming, fault monitoring, turning on and off the dual channels individually, monitoring the LED output voltage, and reading the LED currents of each channel. The IC can drive a series string of LEDs at currents as high as 3A. The IC uses a proprietary average current-modecontrol scheme to regulate the inductor current. This control method does not need any control-loop compensation, maintaining nearly constant switching frequency. Inductor current sense is achieved by sensing the current in the bottom synchronous n-channel MOSFET. The EV kit is configured to deliver up to 3A to a series LED string. The string-forward voltage can vary from 3V to 55V. PWM Dimming The GUI that comes with the EV kit communicates to the SPI interface of the IC so PWM dimming can be done. The dimming frequency can be varied from 200Hz to 2kHz through the GUI. The duty cycle can also be adjusted to control the brightness of the LEDs. Each of the dual channels can be dimmed separately and with www.maximintegrated.com different duty cycles. PWM dimming can be done without the SPI Interface as well. Keep jumpers J3 and J5 in the open position and connect an external signal to the DIM1 and DIM2 tests points. Analog PWM dimming can also be done using the DIM1/DIM2 test points. Force an external analog DC voltage from 0.2V to 3V to vary the duty cycle from 0% to 100%, respectively. Analog Dimming The LED currents on both channels can be adjusted through the GUI using the SPI interface. The LED current can be varied from 0A to 3A. If the current-sense resistors are chosen for a different full-scale current, use the GUI’s Options menu bar and select Change Design Values, and then RCS1 and RCS2 to set the correct currentsense resistor value. The LED currents can also be adjusted through the REFI pins. Close jumpers J1 and J6. Using the potentiometers (R5 and R23), LED currents of both channels can be varied. The REFI voltage can be changed from 0.2V to 1.25V. Below the 0.2V threshold, the LED currents are zero and when REFI voltage is adjusted higher than 1.25V, the internal REFI voltage is clamped for the fullscale LED current. Fault Monitoring Faults like LED Short, LED Open, LED overcurrent and overvoltage are reported in the GUI through the SPI interface. The Short LED threshold can be programmed from 100mV to 400mV in steps of 100mV. LED Current Monitor and LED Output Voltage The GUI reports the LED currents of each of the channels. The IC’s IOUTV1 and IOUTV2 pins report a voltage proportional to the LED currents. The internal ADC converts this voltage to a digital value and reports it through the SPI interface, which can be read using the GUI. Similarly, the LED output voltage is also digitized and monitored through the GUI. Ordering Information PART MAX20096EVSYS# TYPE EV System #Denotes RoHS compliant. Maxim Integrated │  3 Evaluates: MAX20096 MAX20096 Evaluation Kit/ MAX20096 Evaluation System MAX20096 EV Kit Bill of Materials REF DES QTY VALUE DESCRIPTION MFG PART # MANUFACTURER C1, C28 2 1UF CAPACITOR; SMT (0805); CERAMIC CHIP; 1UF; 50V; TOL=20%; TG=-55 DEGC TO +125 DEGC; TC=X7R; AUTO CGA4J3X7R1H105M125AB TDK C2, C6, C14, C16, C23, C27 6 0.1UF CAPACITOR; SMT (0603); CERAMIC CHIP; 0.1UF; 50V; TOL=10%; TG=-55 DEGC TO +125 DEGC; TC=X7R; AUTO; SOFT TERMINATION CGA3E2X7R1H104K080AE TDK C3, C12, C18, C26 4 1000PF CAPACITOR; SMT (0603); CERAMIC CHIP; 1000PF; 100V; TOL=5%; TG=-55 DEGC TO +125 DEGC; TC=C0G; AUTO CGA3E2C0G2A102J080AA TDK C4, C20 2 1UF CAPACITOR; SMT (0603); CERAMIC CHIP; 1UF; 35V; TOL=10%; TG=-55 DEGC TO +125 DEGC; TC=X7R; AUTO CGA3E1X7R1V105K TDK C9, C11, C17, C21 4 4.7UF CAPACITOR; SMT (1210); CERAMIC CHIP; 4.7UF; 100V; TOL=10%; TG=-55 DEGC TO +125 DEGC; TC=X7S; AUTO CGA6M3X7S2A475K200AE TDK C10, C19 2 0.22UF CAPACITOR; SMT (0603); CERAMIC CHIP; 0.22UF; 50V; TOL=10%; TG=-55 DEGC TO +125 DEGC; TC=X7R; AUTO CGA3E3X7R1H224K080AB; GCM188R71H224KA49 TDK; MURATA C13 1 2.2UF CAPACITOR; SMT (0603); CERAMIC; 2.2UF; 6.3V; TOL=10%; CGA3E1X7R0J225K080AC TG=-55 DEGC TO +125 DEGC; TC=X7R; AUTO TDK C15 1 0.1UF CAPACITOR; SMT (0805); CERAMIC CHIP; 0.1UF; 100V; TOL=10%; TG=-55 DEGC TO +125 DEGC; TC=X7R; AUTO CGA4J2X7R2A104K125AA TDK TEST POINT; PIN DIA=0.125IN; TOTAL LENGTH=0.35IN; BOARD HOLE=0.063IN; WHITE; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH; RECOMMENDED FOR BOARD THICKNESS=0.062IN; NOT FOR COLD TEST 5007 KEYSTONE CS, SDI, SDO, VCC, VIO, DIM1, DIM2, RSTB, SCLK, REFI1, REFI2, IOUTV1, IOUTV2 13 N/A D1, D4 2 1N4448WS-7-F D2, D3, D5, D6 4 B180-13-F IN, IN2, AGND, GND1-GND4, LED1+, LED2+ 9 MAXIMPAD EVK KIT PARTS; MAXIM PAD; WIRE; NATURAL; SOLID; WEICO WIRE; SOFT DRAWN BUS TYPE-S; 20AWG 9020 BUSS WEICO WIRE J1, J2, J6, J12, J15 5 PCC02SAAN CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT THROUGH; 2PINS; -65 DEGC TO +125 DEGC PCC02SAAN SULLINS J3-J5, J10, J11, J13 6 PCC03SAAN CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT THROUGH; 3PINS; -65 DEGC TO +125 DEGC PCC03SAAN SULLINS J7 1 SSQ-108-23-G-S CONNECTOR; FEMALE; THROUGH HOLE; SSQ SERIES; STRAIGHT; 8PINS SSQ-108-23-G-S SAMTEC www.maximintegrated.com DIODE; SWT; SOD-323; PIV=75V; IF=0.5A 1N4448WS-7-F DIODE; SCH; SCHOTTKY BARRIER RECTIFIER; SMA; PIV=80V; B180-13-F IF=1A DIODES INCORPORATED DIODES INCORPORATED Maxim Integrated │  4 Evaluates: MAX20096 MAX20096 Evaluation Kit/ MAX20096 Evaluation System MAX20096 EV Kit Bill of Materials (continued) REF DES QTY VALUE DESCRIPTION CONNECTOR; MALE; THROUGH HOLE; PH SERIES; STRAIGHT; 6PINS CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT; 16PINS; -65 DEGC TO +125 DEGC INDUCTOR; SMT; FERRITE BOBBIN CORE; 33UH; TOL=+/20%; 3.1A; -40 DEGC TO +125 DEGC TRAN; N-CHANNEL TRENCHMOS LOGIC LEVEL FET; NCH; LFPAK; PD-(60.4W); I-(20.7A); V-(75V) TRAN; N-CHANNEL 80V; 107MOHM LOGIC LEVEL MOSFET; NCH; LFPAK; PD-(37W); I-(11.8A); V-(80V) RESISTOR; 0603; 453K OHM; 1%; 100PPM; 0.10W; THICK FILM RESISTOR; 0603; 24.9K OHM; 1%; 100PPM; 0.10W; THICK FILM RESISTOR; 0603; 49.9K OHM; 1%; 100PPM; 0.10W; THICK FILM MFG PART # MANUFACTURER J8, J9 2 B6B-PH-K-S(LF)(SN) B6B-PH-K-S(LF)(SN) JST MANUFACTURING J14 1 PEC08DAAN PEC08DAAN SULLINS ELECTRONICS CORP. L1, L2 2 33UH MSS1278T-333ML COILCRAFT Q1, Q4 2 BUK9Y58-75B BUK9Y58-75B NEXPERIA Q2, Q3 2 BUK9Y107-80E BUK9Y107-80E NXP R1, R24 2 453K ERJ-3EKF4533V PANASONIC R2, R25 2 24.9K CRCW060324K9FK VISHAY DALE R3, R21 2 49.9K CRCW060349K9FK; ERJ-3EKF4992V VISHAY DALE/PANASONIC R4, R14, R22 3 10K RESISTOR; 0603; 10K; 1%; 100PPM; 0.10W; THICK FILM CRCW060310K0FK; ERJ-3EKF1002 VISHAY DALE; PANASONIC BOURNS STACKPOLE ELECTRONICS INC R5, R23 2 10K RESISTOR; THROUGH-HOLE-RADIAL LEAD; 3296 SERIES; 10K OHM; 10%; 100PPM; 0.5W; SQUARE TRIMMING 3296W-1-103LF POTENTIOMETER; 25 TURNS; MOLDER CERAMIC OVER METAL FILM R6, R20, R33, R34 4 0.13 RESISTOR; 1206; 0.13 OHM; 1%; 100PPM; 0.5W; THICK FILM CSR1206FTR130 R7, R8, R10, R16, R18, R19, R31, R32 8 0 RESISTOR; 0603; 0 OHM; 0%; JUMPER; 0.10W; THICK FILM CRCW06030000ZS; MCR03EZPJ000; ERJ- VISHAY 3GEY0R00 DALE/ROHM/PANASONIC R9, R17 2 1K RESISTOR; 0603; 1K; 1%; 100PPM; 0.10W; THICK FILM CRCW06031001FK; ERJ-3EKF1001V R11-R13, R15 4 4.7 RESISTOR; 0603; 4.7 OHM; 1%; 100PPM; 0.10W; THICK FILM CRCW06034R70FN VISHAY DALE R26-R28 3 4.75K RESISTOR; 0603; 4.75K; 1%; 100PPM; 0.10W; THICK FILM CRCW06034K75FK; ERJ-3EKF4751 VISHAY DALE/PANASONIC R29, R30 2 4.99K RESISTOR; 0603; 4.99K; 1%; 100PPM; 0.10W; THICK FILM CRCW06034K99FK; ERJ-3EKF4991V VISHAY DALE/PANASONIC SW1 1 PTS810 SJM 250 SMTR LFS SWITCH; SPST; SMT; 16V; 0.05A;PTS 810 SERIES; MICROMINIATURE SMT TOP ACTUATED; GRAY ACTUATOR; PTS810 SJM 250 SMTR LFS RCOIL=0.5 OHM; RINSULATION=100M OHM; C&K COMPONENTS C&K COMPONENTS U1 1 MAX20096ATI+ EVKIT PART-IC; DRV; DUAL CHANNEL HIGH VOLTAGE BUCK LED DRIVER WITH SPI INTERFACE; PACKAGE OUTLINE: 21- MAX20096ATI+ 0140; PACKAGE CODE: T3255-6C; TQFN32-EP MAXIM — 1 PCB PCB: MAX20096 EVKIT MAXIM www.maximintegrated.com MAX20096EVKIT# VISHAY DALE; PANASONIC Maxim Integrated │  5 AGND GND2 LED2+ VIO VCC VIO VCC OPEN C29 50V 0.1UF C2 50V C1 1UF 0805CAP LED2+ OUT2 C D5 B180-13-F 24.9K R2 453K R1 A GND4 10K R5 VCC TON2 IN 1 3 2 2 2 10K R4 1000PF C3 49.9K R3 33UH MSS1278T-333ML 1 L1 REFI2 Q1 BUK9Y58-75B Q2 BUK9Y107-80E D J1 R7 4 0.5W 1UF C4 0 R8 1K R9 C10 A R11 D1 C R29 4.99K 4.7 TON2 0 C R12 D2 CSP2 CSN2 REFI2 IOUTV2 DIM2 12 13 14 15 16 VCC 1000PF C12 1 2 3 1 2 3 BST1 VCC DH1 IN_PIN VCC J3 J4 REFI1 CSN1 CSP1 10K 0.1UF 0.1UF R14 50V DIM1 1 2 4.99K PCC02SAAN J15 RSTB R30 1000PF C18 25 DIM1 C R15 D4 A 0.22UF C19 0 R16 1UF J5 1K R17 C25 D 1 2 J6 REFI1 0.5W DIM2 DIM2 DIM1 10K VCC TON1 IN R23 0.13 R34 PCC02SAAN 0.5W 0.13 R33 DIM1 OPEN 1 L2 1 3 2 D6 2 2 10K R22 1000PF C26 49.9K R21 33UH MSS1278T-333ML Q4 BUK9Y58-75B Q3 BUK9Y107-80E G S IOUTV1 0.1UF 50V C23 0 R19 PCC03SAAN C20 OPEN C22 0 R18 GL1 D G S CAPACITORS AND RESISTORS ARE 0603 SIZE UNLESS OTHERWISE NOTED. 1 2 3 4.7 4 OPEN C24 GH1 4 100V 4.7UF 1210 C21 1N4448WS-7-F VCC 26 IOUTV1 27 REFI1 28 CSN1 29 CSP1 30 OUT1 31 TON1 OUT1 TON1 32 DL1 RSTB C16 0 MAX20096ATI+ LX1 IOUTV1 SDO_PIN VIO C R32 4.7UF 1210 100V C17 DL1 U1 4.7 R13 B180-13-F A D3 PCC03SAAN 50V C14 PCC03SAAN 2.2UF C13 SDI_PIN VCC SCLK CSB EP OUT2 11 33 TON2 10 4.7 BST2 A VCC B180-13-F C15 100V 0.1UF 0805CAP DH2 PCC02SAAN J2 DL2 1 2 9 LX2 OUT2 CSP2 CSN2 REFI2 IOUTV2 DIM2 1N4448WS-7-F 0.1UF 50V C6 C8 OPEN C5 GL2 0 R31 4.7UF 1210 4.7UF 1210 R10 100V C11 100V C9 0.22UF OPEN C7 4 GH2 OPEN 0.13 0 R20 S G PCC02SAAN IOUTV2 1 2 0.5W 0.13 R6 D S G IN2 8 IN2 7 GND3 6 LX2 5 3 2 1 5 3 2 1 5 CSB 17 BST2 SCLK 18 4 DH2 19 3 PGND SDI 2 VCC 20 IN AGND 21 1 LX1 VIO 22 DH1 SDO 23 BST1 RESETB 24 5 1 2 3 5 1 2 3 IN 3 1 3 1 www.maximintegrated.com C A IN B180-13-F OUT1 RSTB OPEN C30 SW1 1UF 0805CAP 3 1 RESET 4 2 PTS810 SJM 250 SMTR LFS 24.9K R25 453K R24 50V 0.1UF C28 50V C27 LED1+ GND1 LED1+ MAX20096 Evaluation Kit/ MAX20096 Evaluation System Evaluates: MAX20096 MAX20096 EV Kit Schematic Maxim Integrated │  6 1 2 3 4 5 6 7 8 www.maximintegrated.com SDI_PIN SCLK SDI SCLK 4.75K R26 SDO_PIN SDO 1 3 5 7 9 11 13 15 R28 4.75K 2 4 6 8 10 12 14 16 J14 PEC08DAAN 4.75K 1 3 5 7 9 11 13 15 R27 VIO CSB MINIQUSB MOSI CSB SCLK MISO EXTVDD CS J7 SSQ-108-23-G-S 2 4 6 8 10 12 14 16 J8 B6B-PH-K-S(LF)(SN) 1 2 3 4 5 6 J9 MATES WITH CABLE A06KR06KR26E152A B6B-PH-K-S(LF)(SN) 1 2 3 4 5 6 DAISY CHAIN OUT DOUT DRET CSB SCLK VIO DAISY CHAIN IN DIN DRET CSB SCLK VIO MISO DRET SDO_PIN MOSI SDI_PIN DIN MISO SDO_PIN DOUT EXTVDD VIO 1 2 3 1 2 1 2 3 1 2 3 PCC03SAAN J11 PCC03SAAN J10 PCC03SAAN J13 PCC02SAAN J12 DC LAST DC FIRST DC OTHER SINGLE DC FIRST DAISY CHAIN SINGLE MAX20096 Evaluation Kit/ MAX20096 Evaluation System Evaluates: MAX20096 MAX20096 EV Kit Schematic (continued) Maxim Integrated │  7 MAX20096 Evaluation Kit/ MAX20096 Evaluation System Evaluates: MAX20096 MAX20096 EV Kit PCB Layout Diagrams 1.0’’ MAX20096 EV Kit Component Placement Guide—Component Side www.maximintegrated.com Maxim Integrated │  8 Evaluates: MAX20096 MAX20096 Evaluation Kit/ MAX20096 Evaluation System MAX20096 EV Kit PCB Layout Diagrams (continued) 3.30’’ 4.30’’ 1.0’’ MAX20096 EV Kit PCB Layout—Top Layer www.maximintegrated.com Maxim Integrated │  9 Evaluates: MAX20096 MAX20096 Evaluation Kit/ MAX20096 Evaluation System MAX20096 EV Kit PCB Layout Diagrams (continued) 3.30’’ 4.30’’ 1.0’’ MAX20096 EV Kit PCB Layout—Inner Layer 1 www.maximintegrated.com Maxim Integrated │  10 Evaluates: MAX20096 MAX20096 Evaluation Kit/ MAX20096 Evaluation System MAX20096 EV Kit PCB Layout Diagrams (continued) 3.30’’ 4.30’’ 1.0’’ MAX20096 EV Kit PCB Layout—Inner Layer 2 www.maximintegrated.com Maxim Integrated │  11 Evaluates: MAX20096 MAX20096 Evaluation Kit/ MAX20096 Evaluation System MAX20096 EV Kit PCB Layout Diagrams (continued) 3.30’’ 4.30’’ 1.0’’ MAX20096 EV Kit PCB Layout—Bottom Layer www.maximintegrated.com Maxim Integrated │  12 Evaluates: MAX20096 MAX20096 Evaluation Kit/ MAX20096 Evaluation System Revision History REVISION NUMBER REVISION DATE PAGES CHANGED 0 11/17 Initial release — 1 1/18 Removed MAX20096 EV System from Ordering Information 3 2 1/18 Removed MAX20096 EV System from entire data sheet 1–13 3 6/19 Updated title to include MAX20096 Evaluation System, added MAX20096 EV System to Ordering Information 1–13 DESCRIPTION For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. © 2018 Maxim Integrated Products, Inc. │  13