LTM8005 38V Boost Module Regulator for IN LED Drive with 10A Switch FEATURES DESCRIPTION n Wide Input Voltage Range: 5V to 38V The LTM 8005 is a 38V , 38V boost Module (power IN OUT n Supports Boost or SEPIC Power Topologies micromodule) LED driver designed to regulate current or n Adjustable LED Current Up to 1.6A voltage and is ideal for driving LEDs. The fixed frequency n 40V 10A Internal Power Switch and current mode architecture result in stable operation n Wide Temperature Range: 40C to 150C over a wide range of supply and output voltages. Spread n Input and Output Current Reporting spectrum frequency modulation (SSFM) can be activated n Internal Switch for PWM and Output Disconnect for improved electromagnetic compatibility (EMC) perfor- n Internal Spread Spectrum Frequency Modulation mance. The ground-referred voltage FB pin serves as the n 3000:1 True Color PWM Dimming input for several LED protection features, and also allows the n Open LED Protection with OPENLED Flag converter to operate as a constant voltage source. The PWM n Short-Circuit Protection and SHORTLED Flag input provides LED dimming ratios of up to 3000:1, and the n Soft-Start with Programmable Fault Restart Timer CTRL inputs provide additional analog dimming capability. n 9mm 11.25mm 2.22mm BGA The low profile package enables utilization of unused space on the bottom of PC boards. The LTM8005 is pack- aged in thermally enhanced, compact over-molded Ball APPLICATIONS Grid Array (BGA) package suitable for automated assem- n High Power LED, High Voltage LED bly by standard surface mount equipment. The LTM8005 n Accurate Current-Limited Voltage Regulators is RoHS compliant. All registered trademarks and trademarks are the property of their respective owners. TYPICAL APPLICATION 350mA at 30.5V to 35.5V LED String from 6V to 27V V (Boost) with Spread Spectrum IN L 8.2H V IN 6V TO 27V V IVINP IVINN SW DA 1M IN C IN EN/UVLO 2 C 93.1k V OUT 4.7F OUT 2 50V OVLO 4.7F 50V ISN 19.1k LTM8005 LED PWM AUX V REF 374k CTRL1 100k FB LED CTRL2 ISMON 12.4k STRING 18.7k SS VC RT GND OPENLED SHORTLED RAMP 0.1F L: COILCRAFT XAL7030-822ME 6.8nF 4.7k 23.2k C , C : MURATA GRM31CR71H475KA12 IN OUT 0.1F f = 350kHz 10nF PIN NOT USED IN THIS CIRCUIT: IVINCOMP 8005 TA01a Rev. B 1 Document Feedback For more information www.analog.comLTM8005 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW V , EN/UVLO, IVINN, IVINP .....................................50V IN ISN Above LED ..........................................................40V SW, ISN, LED, V , VOUT-DA ..................................40V OUT 8 GND CTRL1, CTRL2 .................................15V BANK 4 V OUT BANK 5 BANK 6 PWM PWM, SHORTLED, OPENLED ...................................12V 7 CTRL2 ISN LED V FB, OVLO ....................................................................8V REF 6 CTRL1 Maximum Junction Temperature BANK 3 DA (E-Grade, I-Grade) ............................................ 125C 5 RT BANK 1 Maximum Junction Temperature (H-Grade) .......... 150C 4 SS Storage Temperature............................................. 150C BANK 2 GND 3 VC Peak Solder Reflow Body Temperature .................260C SW IVINN IVINP AUX 2 FB V EN/UVLO ISMON IN 1 GND A B C E F J K D G H OVLO IVINCOMP BGA PACKAGE 80-Pad (11.25mm 9mm 2.22mm) = 19.3C/W, = 3.0C/W, JA JCBOTTOM = 16.3C/W, = 7.2C/W, WEIGHT = 0.4g JCTOP JB VALUES DETERMINED PER JEDEC 15-9, 51-12 ORDER INFORMATION Part Marking* Part Number Terminal Finish Package Type MSL Rating Temperature Range Device Finish Code LTM8005EY PBF SAC305 (RoHS) LTM8005 e1 BGA 3 40C to 125C LTM8005IY PBF SAC305 (RoHS) LTM8005 e1 BGA 3 40C to 125C LTM8005HY PBF SAC305 (RoHS) LTM8005 e1 BGA 3 40C to 150C Contact the factory for parts specified with wider operating temperature Recommended LGA and BGA PCB Assembly and Manufacturing ranges. *Device temperature grade is identified by a label on the shipping Procedures container. Pad or ball finish code is per IPC/JEDEC J-STD-609. LGA and BGA Package and Tray Drawings Rev. B 2 For more information www.analog.com OPENLED SHORTLED RAMP