Automotive Solutions (PDF) - Powel.ru

Power Management SolutionsLED LightingLM3431 – PowerWise ® 3-Channel Constant-Current LED Driver with Integrated Boost ControllerFeatures• 3-channel programmable LED current• High accuracy linear current regulation• Analog and digital PWM dimming control• Up to 25 kHz dimming frequency• >100:1 contrast ratio• Integrated boost controller• 5V to 36V input voltage range• Adjustable switching frequency up to 1 MHz• Available in eTSSOP-28 packagingV IN : 5V to 36VPWMDim inputVCCVINENMODE/FDIMLEDOFFREFREFINCOMPFFVCCRTSS/SHDLYSGNDLM3431LGCSILIMPGNDTHMAFBSCCFBNDRV1SNS1NDRV2SNS2NDRV3SNS3Ch.2Ch.3+Ch.2 / Ch.3Lighting Management UnitsProduct ID DescriptionV IN RangeDrive Currentfor AllCurrent forFlash ModeCurrentMatchingTemp Range(°C) PackagingAutoGradeLP5526Lighting management unit with high-voltage boost converterwith up to 150 mA serial flash LED driver3. to 5.5 150 mA total 150 mA 2% (RGB) -30 to 85 micro SMD-25 —LP5521Fully programmable 3-channel color LED driver withadvanced power save features2.7 to 5.5 75 mA — 1% -30 to 85 micro SMD-20 —LP5522 Autonomous single LED controller with one wire interface 2.7 to 5.5 20 mA — — -30 to 85 micro SMD-6 —LED DriversProduct IDLM3401LM3402HV04HV/06HVLM3402/04/06LM3405ALM3407LM3410LM3430/32LM3431DescriptionHysteretic PFET LEDDriver0.5A ConstantCurrent LED Driver1A ConstantCurrent LED Driver1A ConstantCurrent LED Driver0.35A ConstantCurrent LED DriverConstant Current Boostand SEPIC LED Driver withInternal Compensation6-Channel ConstantCurrent Boost Controllerand Current Regulator forDriving LEDs3-Channel ConstantCurrent LED Driver withIntegrated Boost ControllerInputRange(V)MaxOutput(V)Max LEDCurrent(mA)Max #of LEDsin SeriesSwitchingFreq (MHz) Topology Key Features Packaging4.5 to 30 35 3000 9 1.5 BuckAdjustable hysteresis, 100%duty cycle, PWM dimmingMSOP-8 —Fast PWM dimming, no control6 to 42 /500/1000/Adjustableloop compensation, supports MSOP-8,37 / 679/15Buck6 to 751500up to 1 MHzceramic capacitor and PSOP-8—capacitor-less outputs6 to 42 37 / 67 1000 9/153 to 15 /3 to 22Adjustableup to 1 MHzwww.national.com/automotivepower.national.com 13Buck14 / 20 1000 4 1.6 Buck4.5 to 30 27 350 72.7 to5.56 to 40 80+5 to 36 40+24 1000 640 perstring200 perstringLM5022 Low Side Boost Controller 6 to 60 80+ 1000+ 20+LM3421/3N-Channel Controllersfor Constant Current LEDDriversPowerWise ® product, ■ AEC-Q100 qualification coming soon100304.5 to 75 75V >2000 20Adjustableup to 1 MHz525 kHz /1.6 MHzAdjustableup to 2 MHzAdjustableup to 1 MHzAdjustableup to 2 MHzAdjustableup to 2MHzBuckBoost,SEPICBoostBoostBoost,FlybackBuck,Boost,Flyback,SEPICSame as features ofLM3402/HV above205 mV feedback voltage,PWM dimmingFast PWM dimming, lowexternal component count,constant frequencyPWM dimming, smallfootprint, low externalcomponent countDynamic Headroom Controlfor balanced current throughup to 6 strings of LEDsBalances current through3 strings of LEDs for evenbrightnessPWM dimming, current modecontrol, precision enableFast PWM dimming, LEDready, broken open check,over voltage protection, FLT,cycle by cycle current limitSOIC-8,PSOP-9AutoGrade—TSOT-6 —eMSOP-8 —SOT23-5,LLP-6TSSOP-28,LLP-28LLP-12,LLP-24eTSSOP-28MSOP-10,LLP-10eTSSOP-16/20■—■—c ■