LTM8005 38VIN Boost µModule Regulator for LED Drive …

1 LTM80051 Rev. BFor more information FeedbackTYPICAL APPLICATION FEATURESDESCRIPTION38 VIN Boost Module Regulator for LED Drive with 10A SwitchThe LT M 8005 is a 38 VIN, 38 VOUT Boost Module (power micromodule) LED driver designed to regulate current or voltage and is ideal for driving LEDs. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Spread spectrum frequency modulation (SSFM) can be activated for improved electromagnetic compatibility (EMC) perfor-mance.

2 The ground-referred voltage FB pin serves as the input for several LED protection features, and also allows the converter to operate as a constant voltage source. The PWM input provides LED dimming ratios of up to 3000:1, and the CTRL inputs provide additional analog dimming 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 Grid Array (BGA) package suitable for automated assem-bly by standard surface mount equipment.

3 The LTM8005 is RoHS at to LED String from 6V to 27V VIN ( Boost ) with Spread SpectrumAPPLICATIONS nWide Input Voltage Range: 5V to 38V nSupports Boost or SEPIC Power Topologies nAdjustable LED Current Up to n40V 10A Internal Power Switch nWide Temperature Range: 40 C to 150 C nInput and Output Current Reporting nInternal Switch for PWM and Output Disconnect nInternal Spread Spectrum Frequency Modulation n3000:1 True Color PWM Dimming nOpen LED Protection with OPENLED Flag nShort-Circuit Protection and SHORTLED Flag nSoft-Start with Programmable Fault Restart Timer n9mm BGA nHigh Power LED, High Voltage LED nAccurate Current-Limited Voltage RegulatorsAll registered trademarks and trademarks are the property of their respective TA01aEN/UVLOOVLOPWMVREFCTRL1 CTRL2 VOUTISNLEDAUXFBISMONRAMPSSVCRTGNDOPENLED SHORTLEDIVINPVINIVINNSWDALEDSTRINGCOUT2 HL: COILCRAFT XAL7030-822 MECIN, COUT.

4 MURATA GRM31CR71H475KA12 PIN NOT USED IN THIS CIRCUIT: = FCIN2 6V TO BFor more information CONFIGURATIONABSOLUTE MAXIMUM RATINGSVIN, EN/UVLO, IVINN, IVINP ..50 VISN Above LED ..40 VSW, ISN, LED, VOUT, VOUT-DA ..40 VCTRL1, CTRL2 ..15 VPWM, SHORTLED, OPENLED ..12 VFB, OVLO ..8 VMaximum Junction Temperature (E-Grade, I-Grade) .. 125 CMaximum Junction Temperature (H-Grade) ..150 CStorage CPeak Solder Reflow Body Temperature ..260 C(Note 1)FGHJKEABCD21435678 BGA PACKAGE80-Pad ( 9mm ) JA = C/W, JCBOTTOM = C/W, JCTOP = C/W, JB = C/W, WEIGHT = VALUES DETERMINED PER JEDEC 15-9, 51-12 TOP VIEWGNDCTRL2 CTRL1 RTSSVCFBGNDBANK 5 ISNIVINNVINBANK 2 SWBANK 1 GNDIVINPEN/UVLOIVINCOMPAUXISMONBANK 6 LEDBANK 4 VOUTBANK 3 DAOPENLEDSHORTLEDRAMPPWMVREFOVLOORDER INFORMATIONPart NumberTerminal FinishPart Marking*Package TypeMSL RatingTemperature RangeDeviceFinish CodeLTM8005EY#PBFSAC305 (RoHS)LTM8005e1 BGA3 40 C to 125 CLTM8005IY#PBFSAC305 (RoHS)

5 LTM8005e1 BGA3 40 C to 125 CLTM8005HY#PBFSAC305 (RoHS) LTM8005 e1 BGA3 40 C to 150 C Contact the factory for parts specified with wider operating temperature ranges. *Device temperature grade is identified by a label on the shipping container. Pad or ball finish code is per IPC/JEDEC J-STD-609. Recommended LGA and BGA PCB Assembly and Manufacturing Procedures LGA and BGA Package and Tray DrawingsLTM80053 Rev. BFor more information CHARACTERISTICSPARAMETERCONDITIONSMINTYP MAXUNITSM inimum Input Voltagel5 VLED DC CurrentCTRL1 = CTRL1 = CTRL1 = A ASW Current Limit101214 ASW RDS(ON)19m ISMON VoltageILED = Current into VINEN/UVLO = 0V (Disabled), PWM = 0V EN/UVLO = , PWM = 0V RT = to GND, FB = (Not Switching)35 40 A A mAVREF VoltageIREF = 100 Line Regulation5V < VIN < Load Regulation 100 A < IREF < 0 A1%SS CurrentSourcing, SS = 0V Sinking, ILED Overcurrent28 A AILED Overcurrent Threshold RDS(ON)

6 53m VC Output Impedance2000k VC Standby Input Bias CurrentPWM = 0V 2020nAVC Pin CurrentVC = , Sourcing VC = , Sinking10 30 A AVoltage at FB pin Amplifier gm500 SFB Pin Input Bias CurrentCurrent Out of Pin, FB = VFB200nAFB OPENLED ThresholdOPENLED Overvoltage Threshold SHORTLED ThresholdSHORTLED Falling300350mVLED Current C/10 Threshold Current Limit ThresholdIVINP IVINN5367mVIVINCOMP VoltageIVINP IVINN = FrequencyRT = RT = RT = 240 800105 300 1000125 360 1200kHz kHz kHzSwitching Frequency ModulationRAMP = 2V70%RAMP Input Low Threshold1 VRAMP Input High Threshold2 VRAMP Pin Source CurrentRAMP = ARAMP Pin Sink CurrentRAMP = ACTRL1, CTRL2 Pin CurrentCTRL1.

7 CTRL2 = 1V200nAPWM Input Threshold Rising1 VPWM Pin Bias Current10 A The l denotes the specifications which apply over the specified operating temperature range, otherwise specifications are at TA = 25 C. CTRL1 = CTRL2 = PWM = 5V, unless otherwise noted (Note 2).LTM80054 Rev. BFor more information CHARACTERISTICSPARAMETERCONDITIONSMINTYP MAXUNITSEN/UVLO Threshold Voltage Threshold Voltage Pin Bias Current EN/UVLO =.

8 VIN = 12V19 AOPENLED Output LowIOPENLED = Output LowISHORTLED = Threshold Voltage Rising V The l denotes the specifications which apply over the specified operating temperature range, otherwise specifications are at TA = 25 C. CTRL1 = CTRL2 = PWM = 5V, unless otherwise noted (Note 2).Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device.

9 Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and 2: The LTM8005E is guaranteed to meet performance specifications from 0 C to 125 C internal. Specifications over the full 40 C to 125 C internal operating temperature range are assured by design, characterization and correlation with statistical process controls. The LTM8005I is guaranteed to meet specifications over the full 40 C to 125 C internal operating temperature range. The LTM8005MP is guaranteed to meet specifications over the full 55 C to 125 C internal operating temperature range.

10 The LTM8005H is guaranteed to meet specifications over the full 40 C to 150 C internal operating temperature range. Note that the maximum internal temperature is determined by specific operating conditions in conjunction with board layout, the rated package thermal resistance and other environmental 3: The LTM8005 contains over-temperature protection that is intended to protect the device during momentary overload conditions. The internal temperature exceeds the maximum operating junction temperature when the over-temperature protection is active.