| LED DRIVERS | L - Arrow Electronics

4 6 L E D D R I V E R S : ICsHigh-Power (350 mA to 10A) LED Drivers—BuckHigh current, inductor-based, step-down switching LED drivers provide tiny, efficient high powerLED lighting solutions for automotive, architechtural, and display backlighting. Key features includewide-ranging True Color PWM dimming, wide input voltage range, high-side sensing, and highswitchingfrequency.FeaturesLT3475• True Color PWM delivers constantcolor with 3000:1 dimming range• Wide input range: 4V to 36Voperating, 40V maximum• Accurate and adjustable controlof LED current from 50 mA to 1.5A• High-side current sense allowsgrounded cathode LED operation• Accurate and adjustable 200 kHzto 2 MHz• Available in a compact 20-leadTSSOP thermally enhancedsurface-mount packageBenefits• Enables wide dimming range• Ideal for automotive andindustrial applications• Easy dimming• Enables one-wire LED connector• Keeps externals tiny• Compact solution footprintApplications• Automotive andavionic lighting• Architectural detail lighting• Display backlighting• Constant-current sourcesProduct SpecificationsPartNumberTypeDimmingTypeNumberof LEDs/StringNumberof StringsConfigurationInput Voltage(VDC)OutputVoltage(VDC)OutputCurrent(mA) †PeakEfficiency(%)DiagnosticCapabilities* InterfaceLT ® 3474 Buck LED driver 400:1 PWM 3 x 500 mA 1 Series (3 max.) 4-36 15 1 87 TSD/OVM PWMLT3517 Buck, boost, buck-boost 5000:1 PWM 10 x 100 mA 1 Series 3-30 (40 max.) 45 1A 92 TSD/OVM PWMLT1618Buck, boost,buck-boost LED driverDC/PWM 2 x 350 mA 1 Series (2 max.) 1.6-18 30 1.5 87 TSD/OVM PWMLT3477SEPIC, buck, boost, buckboost,flyback, inverterLT3478/-1Buck, boost, buck-boostDC/PWM 5 x 1A 1 Parallel/series 2.5-5Depends uponconfiguration3 91 TSD/OVM PWM3000:1 PWM 8 x 1.5A 1 1 series string (8 max.) 2.7-36 40 4.5 92 TSD/OVM PWMLT3518 5000:1 PWM 10 x 200 mA 1 Series 3-30 (40 max.) 45 1A 92 TSD/OVM PWMLT3475 Dual-buck LED driver 3000:1 PWM 3 x 1.5A 2LT3476LTC ® 3783Quad buck, boost, buckboostLED driverSEPIC, buck, boost, buckboost,flyback, inverter1000:1 PWM 5 x 1A 43000:1 PWM,10:1 analog2 x multiple seriesstring (3 max.)4 x multiple seriesstring (8 max.)4-36 15 2 x 1.5 88 TSD/OVM PWM2.8-64 x 12 x 1A 1 Series/parallel 3-36+Depends uponconfigurationLimited byext. FET4 x 1.5 96 TSD/OVM PWM