LV52205MU Bi-CMOS IC LED Boost Driver with PWM www.onsemi.com D imming Overview The LV52205MU is a high voltage boost driver for LED drive. LED current is set by the external resistor R1 and LED dimming can be done by changing FB voltage with PWM control. Feature  Operating Voltage from 2.7V to 5.5V  Integrated 42V MOSFET  PWM dimming for Brightness Control  600kHz Switching Frequency UDFN6 2×2, 0.65P Typical Applications  LED Display Backlight Control L1 D1 VBAT 22μH C1 C2 1μF 1μF PWM N M W VI W S P LV52205 P A D B C N F F G C3 220nF R1 10Ω ORDERING INFORMATION See detailed ordering and shipping information on page 12 of this data sheet. © Semiconductor Components Industries, LLC, 2015 1 Publication Order Number : J anuary 2015 - Rev. 1 LV52205MU/D

LV52205MU Specifications Absolute Maximum Ratings at Ta = 25C Parameter Symbol Conditions Ratings Unit Maximum supply voltage VCC max VCC 5.5 V Maximum pin voltage1 V1 max SW 42 V Maximum pin voltage2 V2 max Other pin 5.5 V Allowable power dissipation Pd max Ta = 25C *1 2.05 W Operating temperature Topr -30 to +85 C Storage temperature Tstg -55 to +125 C *1 Mounted on a specified board: 70mm50mm1.2mm (4 layer glass epoxy) Caution 1) Absolute maximum ratings represent the values which cannot be exceeded for any length of time. Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details. StressesexceedingthoselistedintheMaximumRatingstablemaydamagethedevice.Ifanyoftheselimitsareexceeded,devicefunctionalityshouldnotbeassumed, damagemayoccurandreliabilitymaybeaffected. Recommendation Operating Condition at Ta = 25C Parameter Symbol Conditions Ratings Unit Supply voltage range1 VCC op VCC 2.7 to 5.5 V PWM frequency Fpwm 300 to 100k Hz FunctionaloperationabovethestresseslistedintheRecommendedOperatingRangesisnotimplied.ExtendedexposuretostressesbeyondtheRecommended OperatingRangeslimitsmayaffectdevicereliability. Electrical Characteristics Analog block at Ta  25C, VCC = 3.6V, unless otherwise specified Ratings Parameter Symbol Conditions Unit min typ max Standby current dissipation ICC1 SHUTDOWN 0 5 A DC/DC current dissipation ICC2 VOUT = 30V, ILED = 20mA 1 mA FB voltage Vfb PWM duty 100% 0.19 0.2 0.21 V FB pin leak current Ifb 1 A OVP voltage Vovp SW 40 41 42 V SWOUT ON resistance Ron IL = 100mA 700 m NMOS switch current limit ILIM Vfb = 200mV 0.7 A OSC frequency Fosc 600 kHz High level input voltage VINH PWM 1.5 VCC V Low level input voltage VINL PWM 0 0.4 V Under voltage lockout Vuvlo VIN falling 2.2 V PWM setup time from Ton 20 us shutdown PWM low time to shutdown Toff 8.9 ms ProductparametricperformanceisindicatedintheElectricalCharacteristicsforthelistedtestconditions,unlessotherwisenoted.Productperformancemaynotbe indicatedbytheElectricalCharacteristicsifoperatedunderdifferentconditions. www.onsemi.com 2

LV52205MU Block Diagram VBAT SW 4 VCC 6 UVLO OCP OVP 600kHz PWM TSD Controler 1 FB PWM 5 VREF VREF CONTROL GND FCAP 3 2 Pin Connections FB 1 6 VIN FCAP 2 5 PWM GND 3 4 SW Top view Pin Function PIN # Pin Name Description 1 FB Feedback pin. 2 FCAP Filtering capacitor terminal for PWM signal. 3 GND Ground 4 SW Switch pin. Drain of the internal power FET. 5 PWM PWM dimming input (active High). 6 VCC Supply voltage. Expose-pad Connect to GND on PCB. www.onsemi.com 3

LV52205MU Pd max -- Ta 3.0 Mounted on a specified board: 70×50×1.2mm3 W (4 layer glass epoxy) -- x a m n, Pd 2.0 2.05 o ati p ssi di er w 1.0 o p 0.82 e bl a w o All 0 --30 0 30 60 90 120 Ambient temperature,Ta -- C LED Current Setting LED current is set by an external resistor connected between the FB pin and ground. ILED = VFB/RFB. The VFB can be controled by PWM signal. PWM input is converted into a near DC current by the internal resistor R that was equivalent to 60k (±10%) and the external capacitor CFCAP as a low pass filter with a cut-off frequency fc = 1/2πRCFCAP. The VFB can be adjusted by altering the duty cycle of the PWM signal (See Fig.1). VFB = 200 (mV)  PWM Duty (%) 200 180 160 140 V) 120 m (B 100 F V 80 60 40 20 0 0 10 20 30 40 50 60 70 80 90 100 PWM Duty (%) Fig1. VFB vs. PWM Duty www.onsemi.com 4

LV52205MU PWM Control DC-DC Delay max = 4.6ms Ton>20us Toff > 8.9ms PWM Shutdown PWM Enable DCDCENH (IC inside signal) FB Max 4ms @ Cfcap = 22nF (T.C.= 60k * Cfcap) FCAP The time until stable movement max = 8.6ms Fig2.Timing Diagram in PWM signal Open LED Protection If SW terminal voltage exceeds a threshold Vovp (41V typ) for 8 cycles, boost converter enters shutdown mode. In order to restart the IC, PWM setup signal is required again. Over Current Protection Current limit value for built-in power MOS is around 0.7A. The power MOS is turned off for each switching cycle when peak current through it exceeds the limit value. Under Voltage Lock Out (UVLO) UVLO operation works when VIN terminal voltage is below 2.2V. Thermal Shutdown When chip temperature is too high, boost converter is stopped. www.onsemi.com 5

LV52205MU Application Circuit Diagram 10LEDs L1 D1 VBAT 22μH C1 C2 1μF 1μF PWM 6 5 4 N M W VI W S P P A D B C N F F G 1 2 3 C3 220nF R1 10Ω L1: VLS3012T-220M49 (TDK), VLF504015MT-220M (TDK) D1: MBR0540T1 (ONsemi), NSR05F40 (ONsemi) C2: GRM21BR71H105K (Murata), C1608X5R1H105K (TDK) 6LEDs L1 D1 VBAT 10μH C1 C2 1μF 1μF PWM 6 5 4 N M W VI W S P P A D B C N F F G 1 2 3 C3 220nF R1 10Ω L1: VLS3012T-100M72 (TDK), VLF302512M-100M (TDK) D1: MBR0540T1 (ONsemi), NSR05F40 (ONsemi) C2: GRM21BR71H105K (Murata), C1608X5R1H105K (TDK) www.onsemi.com 6

LV52205MU Typical Characteristics (VIN = 3.6V, L = 22H, T = 25C, unless otherwise specified) Efficiency -- Output current Efficiency -- Output current 100 100 VIN=3.8V 10LED 90 90 8LED 4.2V ncy -- % 7800 10LED 11LED ncy -- % 7800 3.6V 3.0V Effice 60 Effice 60 50 50 40 40 0 5 10 15 20 0 5 10 15 20 LED current -- mA LED current -- mA FB voltage -- PWM duty FB voltage -- Temperature 200 200 Duty=100% 180 160 150 V V 140 m m ge -- 100 ge -- 110200 Duty=50% volta volta 80 FB FB 60 50 40 Duty=10% 20 0 0 0 10 20 30 40 50 60 70 80 90 100 --30 --15 0 15 30 45 60 75 90 PWM duty -- % Temperature -- °C LED current -- PWM frequency VIN current -- Temperature 20 1 75% 0.8 15 D current -- mA 10 50% I mA-- CC 00..46 E L 5 25% 0.2 0 0 0.1 1 10 100 -40 -20 0 20 40 60 80 100 PWM frequency -- kHz Temperature -- °C OVP voltage -- Temperature UVLO voltage -- Temperature 2.40 43 2.35 42 V VP voltage -V 434190 VLO voltage - 22..3205 O U 2.20 38 2.15 37 36 2.10 -40 -20 0 20 40 60 80 100 -40 -20 0 20 40 60 80 100 Temperature -- °C Temperature -- °C www.onsemi.com 7

LV52205MU PACKAGE DIMENSIONS UDFN6 2x2, 0.65P CASE 517AB NOTES: D A 1. DIMENSIONING AND TOLERANCING PER B ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: MILLIMETERS. 3. COPLANARITY APPLIES TO THE EXPOSED PAD AS WELL AS THE TERMINALS. MILLIMETERS DIM MIN MAX A 0.45 0.55 E A1 0.00 0.05 PIN ONE A3 0.127 REF REFERENCE b 0.25 0.35 D 2.00 BSC D2 1.50 1.70 2X 0.10 C E 2.00 BSC E2 0.80 1.00 e 0.65 BSC 2X 0.10 C K 0.20 --- L 0.25 0.35 A3 SOLDERING FOOTPRINT* 0.10 C A 6X 0.95 0.47 6X 0.08 C 6X A1 0.40 C SEATING 1 PLANE D2 6XL e 4X 1.70 1 3 E2 0.65 PITCH 2.30 6X K 6 4 6Xb DIMENSIONS: MILLIMETERS 0.10 C A B *For additional information on our Pb-Free strategy and soldering BOTTOM VIEW 0.05 C details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. LV52205MU is as follows. MARKING DIAGRAM 1 T5M T5 = Device Code M = Date Code = Pb−Free Package (Note: Microdot may be in either location) www.onsemi.com 8

LV52205MU Packing Specification of Embossed Carrier Taping UDFN6 (2.0×2.0) 3,000 pcs/reel .EMBOSSEDCARRIERTAPING - .Embossedcarriertapedimensions Embossment Sprockethole Unit• Fmm - .Tapemountingdirection Reel Indexmark EmbossedCarriertape Directionofunreeling www.onsemi.com 9

LV52205MU .TAPESTRENGTH - .Tensilestrengthofthecarriertape Min.10N - .Peelstrengthofthetopcovertape ( )Peelangle 165 to180 relativetothetapeadhesivesurface ( )Peelrate 300mm/minute ( )Peelofstrength 0.1Nto1.0N .PARTSNo.ONBARCODELABEL Typenumber T B G Directionindication LEADFREEsymbol .REELDIMENSIONS 1.6 MIN 10.9 MAX TYPE:P-RRM-08B UNIT:mm www.onsemi.com 10

LV52205MU Carriertape typenumber MaximumnumberofICscontained(pcs.) SANYOPackagecode Packingform Reel Innerbox Innerbox.B50766P001 3,000 30,000 10Reelscontained N22986D001 UDFN6(2.0*2.0) Dimensions:mm 190 136 186 MPNLabel 1 HOURS:UNLIMITED PackingMethod Innerbox Directionofunreeling MPNLabel Fixbytape Put10ReelintoInnerbox MPNSticher www.onsemi.com 11

LV52205MU ORDERING INFORMATION Device Package Shipping (Qty / Packing) UDFN6 (2x2) LV52205MUTBG (Pb-Free) 3000 / Tape & Reel ONSemiconductorandtheONlogoareregisteredtrademarksofSemiconductorComponentsIndustries,LLC(SCILLC)oritssubsidiariesintheUnitedStates and/orothercountries.SCILLCownstherightstoanumberofpatents,trademarks,copyrights,tradesecrets,andotherintellectualproperty.Alistingof SCILLC’sproduct/patentcoveragemaybeaccessedatwww.onsemi.com/site/pdf/Patent-Marking.pdf.SCILLCreservestherighttomakechangeswithout furthernoticetoanyproductsherein.SCILLCmakesnowarranty,representationorguaranteeregardingthesuitabilityofitsproductsforanyparticularpurpose, nordoesSCILLCassumeanyliabilityarisingoutoftheapplicationoruseofanyproductorcircuit,andspecificallydisclaimsanyandallliability,including withoutlimitationspecial,consequentialorincidentaldamages.“Typical”parameterswhichmaybeprovidedinSCILLCdatasheetsand/orspecificationscan anddovaryindifferentapplicationsandactualperformancemayvaryovertime.Alloperatingparameters,including“Typicals”mustbevalidatedforeach customerapplicationbycustomer’stechnicalexperts.SCILLCdoesnotconveyanylicenseunderitspatentrightsnortherightsofothers.SCILLCproductsare notdesigned,intended,orauthorizedforuseascomponentsinsystemsintendedforsurgicalimplantintothebody,orotherapplicationsintendedtosupportor sustainlife,orforanyotherapplicationinwhichthefailureoftheSCILLCproductcouldcreateasituationwherepersonalinjuryordeathmayoccur.Should Buyerpurchaseor useSCILLC productsforanysuchunintendedor unauthorizedapplication,BuyershallindemnifyandholdSCILLC anditsofficers, employees,subsidiaries,affiliates,anddistributorsharmlessagainstallclaims,costs,damages,andexpenses,andreasonableattorneyfeesarisingoutof, directlyorindirectly,anyclaimofpersonalinjuryordeathassociatedwithsuchunintendedorunauthorizeduse,evenifsuchclaimallegesthatSCILLCwas negligentregardingthedesignormanufactureofthepart.SCILLCisanEqual Opportunity/AffirmativeActionEmployer.Thisliteratureissubjecttoall applicable copyright laws and is not for resale in any manner. www.onsemi.com 12