HBLED Driver Selection
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- Kristin Regina Bishop
- 5 years ago
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2 HBLED Driver Selection Graphical Selector Guide Buck AC/DC Buck Boost Constant Current AC/DC Flyback VIN <40VDC <256VAC IS31LT3953 Integrated MosFET (3.0A) 100kHz to 1MHz IS31LT3350 Integrated MosFET (750mA) Linear/PWM Dimming IS31LT3352 Integrated MosFET (750mA) Linear/PWM Dimming Temp. Compensation IS31LT3360 Integrated MosFET (1.2A) Linear/PWM Dimming IS31LT3380 Integrated MosFET (1.2A) Switch Dimming IS31LT3916 External MosFET Integrated PFC Flyback Config IS31LT3938 Higher Drive MosFET Linear/PWM/Switch Dim Over Temp/Cur/Volt Prot IS31LT3918 External MosFET Linear/PWM/Switch Dim Over Temp/Cur/Volt Prot IS31LT3910 External MosFET Linear/PWM Dimming Temp. Compensa on IS31LT3932 Universal Input, High PF, Low THD, Non-Dimmable IS31LT3935 TRIAC Dimmable, High PF, small DFN packge IS31LT3948 External MosFET PFM Boost, PWM dimming OverTemp/Volt Protec on IS31LT3505 Integrated MosFET (2.0A) 1Mhz Switching OverTemp Protec on IS31LT to 35V Buck/Boost, Analog or PWM Dimming IS31LT Channel, 350mA/CH 5% accuracy IS31LT3171 Adjustable 10 to 150mA, PWM dimming input IS31LT3170 Adjustable 10 to 150mA IS32LT Channel, 350 ma/ch 5% accuracy IS32LT KHz to 1MHz, 3.0A dimmable, with protec on IS32LT Channel, 200mA/CH De-bounce, Fade IN/OUT IS32LT Channel, 10 to 75mA/CH dual intensity, fault report IS32BL Channel, 40 to 360mA/CH 1.5% accuracy IS32BL Channel, 20 to 180mA/CH 1.5% accuracy IS32BL Channel, 20 to 180mA/CH 0.8% accuracy IS32LT3171 Adjustable 10 to 150mA, PWM dimming input IS32LT3170 Adjustable 10 to 150mA IS31LT3354 External MosFET Linear/PWM Dimming <6VDC IS31LT3135 Integrated MosFET Main/Aux Dual Channel Buck AC/DC Buck Boost Linear Driver Automo ve Buck Converter A buck or step-down takes a higher input voltage and converts it to a lower output voltage. Boost Converter A boost or step-up takes a lower input voltage and converts it to a higher output voltage. Linear Driver A linear driver generates a fixed current that varies slightly with changes in voltage. 2 February Buckeye Dr. Milpitas, CA analog@issi.com
3 Continuous Mode Buck Converter 6 to 40VDC Buck SOT23-5 IS31LT3350 SOT89-5 IS31LT mA Buck w/ Integrated Switch 750mA output current with 5% accuracy 1MHz switching frequency with 95% efficiency Integrated 40V power MOS switch Single pin ON/OFF and brightness control using Linear or PWM Up to 1200 : 1 dimming ratio Open and short LED, thermal shutdown protection Applications MR16 LED spotlight LED Streetlamp, wall-washer, decorative lighting Automobile LED decorative lights IS31LT3360 SOT89-5 IS31LT A Buck w/ Integrated Switch Up to 1.2A output current with 3% accuracy 1MHz switching frequency with 98% efficiency Integrated 40V power MOS switch Single pin ON/OFF and brightness control using Linear or PWM Up to 1200 : 1 dimming ratio Open and short LED, thermal shutdown protection Temperature Ranges: S3: -40 o C to +105 o C, S4: -40 o C to +125 o C Applications MR16 LED spotlight LED Streetlamp, wall-washer, decorative lighting Automobile LED decorative lights February Buckeye Dr. Milpitas, CA analog@issi.com 3
4 Continuous Mode Buck Converter 6 to 40VDC Buck SOT23-5 2A IS31LT Buck w/ External Switch Up to 2A output current only limited by external component selection 1MHz switching frequency with 98% efficiency Up to 1200 : 1 dimming ratio Open and short LED, thermal shutdown protection Single pin ON/OFF and brightness control using DC voltage or PWM Applications MR16 LED Spot Lighting LED Street Lamp Decorative Lighting 750mA IS31LT mA Buck w/ Temperature Compensation Cascadable temperature compensation Integrated 40V power MOS switch 750mA output current with 5% accuracy 1MHz switching frequency with 95% efficiency Up to 1200 : 1 dimming ratio Accepts either DC or PWM dimming input signal Applications MR16 LED Spot Lighting LED Street Lamp Decorative Lighting 4 February Buckeye Dr. Milpitas, CA analog@issi.com
5 Continuous Mode Buck Converter 6 to 40VDC Buck V IN (6 to 48V) R FREQ VIN TON LX FB IS31LT3953-3A Buck w/ Integrated Switch PWM (100Hz to 2kHz) EN CS GND VCC Up to 3A output current Cycle-by-cycle current limit Single pin ON/OFF and brightness control using Linear or PWM R ISET Robust protection against: Adjacent pin-to-pin short Pin-to-GND short Component open/short faults Low power shutdown (1 μa typical) SOP-EP8 IS31LT ABuck w/ Switch Dimming 40V/1.2A output current with 5% accuracy 1MHz switching frequency with 98% efficiency Integrated 40V power switch for decreased parts count Multimodes switch dimming Use ordinary power switch with existing wiring and fixtures Open and short LED, thermal shutdown protection DIM1 DIM2 DIM LEVELS* Floating Floating No Dimming Floating GND 100%-50%-20% GND Floating 100%-60%-30% GND GND 100%-30% * Switch ON/OFF cycles the DIM Ratio February Buckeye Dr. Milpitas, CA analog@issi.com 5
6 Continuous Mode Buck Converter 6 to 40VDC Boost IS31LT Boost w/ PFM Mode Wide input voltage range: 5V-100V Constant Current Output limited only by external component selection Automatically adjust boost output for constant Load current No loop compensation required Internal over-voltage protection Internal over-temperature protection 1A IS31LT3505-1A Boost w/ Integrated Switch 6V to 30V supply voltage Boost output up to 35V Output current up to 1A PWM dimming control 1MHz switching frequency with 90% efficiency Integrated 35V power switch Internal soft start Open-circuit LED thermal shutdown protection MSOP-10 6 February Buckeye Dr. Milpitas, CA analog@issi.com
7 Continuous Mode Buck Converter 6 to 40VDC Buck-boost & AC/DC SOP-16 IS31LT3515- Buck, Boost or Buck-boost Topology 5V to 35V supply voltage Buck, Boost or Buck-Boost operation External resistor sets operating frequency up to 500Khz Gate clamp voltage to drive low cost MOSFET Easy dimming: Analog or PWM Internal soft start Protections: Over voltage Short circuit Under voltage Over Temperature DFN10-EP IS31LT TRIAC Dimming Smooth 0-100% flicker-free dimming range Compatibility with most TRIAC Dimmers (Digital, Leading and Trailing-edge) Integrated near unity Power Factor Correction Power Factor = 0.99 at 13W output Low component count Low 500μA quiescent current with soft start Spread Spectrum switching for reduced EMI Efficiency: 87% from 120Vrms to 39VDC February Buckeye Dr. Milpitas, CA analog@issi.com 7
8 AC/DC Buck *Switch ON/OFF cycles the DIM Ratio 1A IS31LT Switch and 3-level Dimming Wide input range from 6VDC to 450DC or 85VAC to 265VAC 92% efficiency with 3% output current accuracy Linear, PWM or switch dimming capability Use ordinary power switch with existing wiring and fixtures Over current, voltage and temp protection Requires few external components Non-isolated Design *Switch ON/OFF cycles the DIM Ratio For both IS31LT3918 and IS31LT3938 IS31LT Switch and 3-level Dimming Wide input voltage range: 10VDC~450VDC or 85Vac~ 265Vac High efficiency with 3% output current accuracy High MOS gate drive voltage Linear, PWM or switch dimming User configurable power sequencing levels Over current, temperature and short circuit protection Use ordinary power switch with existing wiring and fixtures 8 February Buckeye Dr. Milpitas, CA analog@issi.com
9 AC/DC Buck-boost, Flyback IS31LT Flyback, Buck-boost Isolated LED Driver with Integrated PFC Active Power Factor Correction to > % typical current accuracy up to 1A No loop compensation required Wide input voltage range: 90V to 260VAC Isolated and non-isolated design Internal over-temperature protection Primary side OCP Overvoltage Protection IS31LT True Constant Current Universal Input Voltage: 85~265Vac Configurable for fly-back, buck-boost or buck topology ± 5% line regulation and load regulation Constant LED current with ± 3% accuracy Integrated near unity Power Factor Correction Low 15μA startup current with soft start MOSFET valley turn-on (Buck) and high gate drive Integrated protections - No Load and open feedback protection - UVLO, OCP, OVP and OTP protections February Buckeye Dr. Milpitas, CA analog@issi.com 9
10 Linear Driver IS31LT Main/Aux Dual Channel LED Driver with Automatic Switchover Optimized for battery powered & Mining lamp applications Intelligent Battery undervoltage detect Sparkless Manual or Auto switch from Main to Aux LED Over-temperature and short circuit protection Main/Aux channel current set by external resistors Low IC quiescent current less than 300uA Miner LED Lamp IS31LT Channel CCR Four 350mA channels, 1.4A total output Current matching 3% between channels Thermal current regulation above 130 C PWM dimming and Shutdown control input VREF 2.5V output to drive external standoff BJTs for high voltage/current operation Low IC quiescent current less than 100uA PWM frequency up to 100KHz etssop February Buckeye Dr. Milpitas, CA analog@issi.com
11 Linear Driver IS31LT to-150mA CCR Adjustable continuous output current up to 150 ma with an external resistor on ADJ pin LED drive current preset to 10 ma Supply voltage up to 40 V Low or high side current control Negative thermal coefficient of -0.2 %/K reduces output current at higher temperatures Up to 1 W power dissipation in a small SOT23-6 package SOT23-6 IS31LT to-150mA CCR with PWM EN pin for up to 10kHz PWM Adjustable continuous output current up to 150 ma with an external resistor on ADJ pin LED drive current preset to 10 ma Supply voltage up to 40 V Low or high side current control Negative thermal coefficient of -0.2 %/K reduces output current at higher temperatures Up to 1 W power dissipation in a small SOT23-6 package SOT23-6 February Buckeye Dr. Milpitas, CA analog@issi.com 11
12 Automotive Linear Driver SOP EP8 IS32LT Dual Channel CCR with Fade IN/OUT Input voltage range: 5V to 45V Dual output channels can source up to 200mA Independent ON/OFF button control for each channel - debounced inputs Programmable functions with external resistor - Set gamma corrected fade IN/OUT speed - Set channel current Protections for LED string short to GND, LED string open, over temperature Automotive AEC-Q100 Qualified (Pending) etssop-16 IS32LT Eight Channel, Dual Intensity CCR 6V-55V voltage input with load dump protection Eight channel CCR for automotive rear tail light Output current programmable from 10mA to 75mA Tail duty cycle programmable from 1% to 95% Low dropout voltage of 0.5V for minimal power dissipation Dual function /PWM input selects between DC output and PWM Output over temperature current reduction Automotive AEC-Q100 Qualified (Pending) 12 February Buckeye Dr. Milpitas, CA analog@issi.com
13 Automotive Boost Backlight Driver IS32BL Two Channel Boost 2 current sinks adjustable 40 to 360mA - String-to-string current matching of 1.5% - High contrast ratio - External PWM dimming Input voltage range: 4.5V to 33V Operating frequency: 100kHz to 1MHz Protections for: OCP, OTP, UVLO, LED open/ short, programmable OVP Automotive AEC-Q100 Qualified (Pending) etssop-16 IS32BL Four Channel Boost 4 current sinks adjustable 20 to 180mA - String-to-string current matching of 1.5% - High contrast ratio - External PWM dimming Input voltage range: 4.5V to 33V Operating frequency: 100kHz to 1MHz Protections for: OCP, OTP, UVLO, LED open/ short, programmable OVP Automotive AEC-Q100 Qualified (Pending) etssop-16 February Buckeye Dr. Milpitas, CA analog@issi.com 13
14 Automotive Linear Driver IS32BL Six Channel Boost 6 current sinks adjustable 20 to 180mA - String-to-string current matching of 0.8% - High contrast ratio - External PWM dimming Input voltage range: 5V to 40V Operating frequency upto 2.3MHz - Synchronize capable Protections for: OCP, OTP, UVLO, LED open/ short, programmable OVP Automotive AEC-Q100 Qualified (Pending) etssop-24 IS32LT Channel CCR Four 350mA channels, 1.4A total output Current matching 3% between channels Thermal current regulation above 130 C PWM dimming and Shutdown control input VREF 2.5V output to drive external standoff BJTs for high voltage/current operation Low IC quiescent current less than 300uA Automotive AEC-Q100 Qualified (Pending) etssop February Buckeye Dr. Milpitas, CA analog@issi.com
15 Automotive Linear Driver IS32LT to-150mA CCR Adjustable continuous output current up to 150 ma with an external resistor on ADJ pin LED drive current preset to 10 ma Supply voltage up to 40 V Low or high side current control Negative thermal coefficient of -0.2%/K reduces output current at higher temperatures Up to 1 W power dissipation in a small SOT23-6 package Automotive AEC-Q100 Qualified (Pending) SOT23-6 IS32LT to-150mA CCR with PWM EN pin for up to 10kHz PWM Adjustable continuous output current up to 150 ma with an external resistor on ADJ pin LED drive current preset to 10 ma Supply voltage up to 40 V Low or high side current control Negative thermal coefficient of -0.2 %/K reduces output current at higher temperatures Up to 1 W power dissipation in a small TSOP-6 package Automotive AEC-Q100 Qualified (Pending) SOT23-6 February Buckeye Dr. Milpitas, CA analog@issi.com 15
16 Automotive Buck IS32LT3953-3A Buck w/ Integrated Switch Up to 3A output current Cycle-by-cycle current limit Single pin ON/OFF and brightness control using Linear or PWM Robust protection against: - Adjacent pin-to-pin short - Pin-to-GND short - Component open/short faults Low power shutdown (1 μa typical) Automotive AEC-Q100 Qualified (Pending) SOP EP8 16 February Buckeye Dr. Milpitas, CA analog@issi.com
17 uct Selector Guide Ordering Information Switching (AC/DC & ) Part No. Driver VIN (V) IOUT Accuracy Effcy (%) Power Transistor Typical Applications Package Key Feature Status IS31LT3350 Buck mA ±5% 95 Built-in Low voltage LED lighting, MR16 replacement SOT23-5, SOT89-5 Single pin ON/OFF or brightness control with DC/PWM, thermal shutdown IS31LT3352 Buck mA ±5% 95 Built-in Low voltage LED lighting, MR16 replacement Cascadable, temp. compensation and one pin ON/OFF/dimming control IS31LT3354 Buck 6-40 < 2.5A ±5% 98 External Low volt. LED lighting, Illuminated sign SOT :1 dimming ratio LED driver with thermal shutdown protection IS31LT3360* Buck A ±3% 98 Built-in MR16, MR11 spot light, PAR light SOT89-5 High efficiency with buck converter, with analog or PWM dimming IS31LT3380 IS31LT3505 Buck Boost A ±5% 24W ±5% 98 Built-in 90 Built-in MR16, MR11 spot light, PAR light Battery powered LED, solar light MSOP-10 3-level switch dimming control, open/short and thermal shutdown protection 1MHz Boost Converter with 30V Internal NMOS IS31LT ±3% 90 External Industrial, street lighting SOP-16 35V Buck/Boost, Buck/Boost operation S=Q2/14 IS31LT3948 IS31LT3910 Boost AC/DC External DC 110/220 AC IS31LT3916 AC/DC AC 500mA ±7% Street lamp, LED lighting, Gen. illum. 90 External T8, PAR light PF > External T8, Bulb Replacement, PAR light M Wide input voltage range, Boost, over-voltage/temperature protection Non-isolation, linear/pwm dimming, temperature compensation Isolated and Non-Isolated; Offline LED Driver with Active PFC Switching (AC/DC & ) Part No. Driver VIN (V) IS31LT3918 AC/DC DC AC IOUT Accuracy - ±3% Effcy (%) Power Transistor 95 External IS31LT3932 AC/DC AC PF > 0.95 >85 External IS31LT3935 IS31LT3938 AC/DC, AC/DC 110/220 AC DC AC PF > External - ±3% 95 External Typical Applications Package Key Feature Status LED Lighting; Signal & decor. lighting, T8 High voltage LED driver with 3-level Switch Dimming Retrofit Bulb, Tube, PAR Lighting Bulb Replacement, spot light, PAR light DFN10 3x3 LED Lighting; Signal & decorative lighting High Power factor, Low THD Universal Constant Current 25W Triac Dimmable Active PF Isolated and Non-Isolated High voltage LED driver with Switch Dimming, Single External FET * -40 C to +125 C Extended Temperature range option available February Buckeye Dr. Milpitas, CA analog@issi.com 17
18 uct Selector Guide cont d. Ordering Information Automotive (Industrial) Part No. Driver VIN (V) IOUT Accuracy Power Transistor Typical Applications Package Key Feature Status IS32BL3552 Boost V ±1.5% External Automotive lighting, LCD display backlight etssop-16 Two channel LED current sinks, 40 to 360mA per string. String-to-string accuracy 1.5% Sample IS32BL3554 Boost V ±1.5% External Automotive lighting, LCD display backlight etssop-16 Four 20 to 180mA channel current sinks. String-to-string accuracy 1.5% Sample IS32BL3556 Boost 5-40V ±0.8% External Automotive lighting, LCD monitor backlight etssop-24 Six 20 to 180mA channel current sinks. String-to-string accuracy 0.8% S=Q3/14 IS32LT3117 Linear 6-60V ±5.0% Integrated Automotive cabin lighting, Low-side CCR etssop-16 Four 350 ma channel current sinks. Support for external ballast transistor S=Q2/14 IS31LT3953 IS32LT3953 Buck Buck 6-48V - Integrated 6-48V - Integrated IS32LT3170/1 Linear 2-40V - Integrated 3APWM Dimmable Lighting Automotive lighting, dimmable cabin light Automotive lighting, emergency lighting, retail lighting esoic-8 esoic-8 SOT kHz to 2Mhz 3.0A dimmable buck regulator with robust protection features 200kHz to 2Mhz 3.0A dimmable buck regulator with robust protection features Adjustable CCR 10 to 150mA, negative thermal coeff., low / high side, IS32LT3171 PWM dimming S=Q3/14 S=Q3/14 S=Q2/14 IS32LT3120 Linear 6-60V - Integrated Automotive cabin lighting, map & dome light SOP8-EP Two channel CCR with two debounced switch inputs, LED fade IN/OUT S=Q3/14 IS32LT3180 Linear 6-60V ±5.0% Integrated Automotive RCL, CHMSL, fog lamps, turn signal etssop-16 Eight channel, dual intensity, CCR with fault reporting, 10-75mA S=Q3/14 Linear Part No. Driver VIN (V) IOUT Accuracy Power Transistor Typical Applications Package Key Feature Status IS31LT3135 Constant Current mA ±5% Built-in Miner lamp, Torch, Battery powered LED lighting Main/sub dual-channel driver with short circuit and over temp. protection IS31LT3117 Linear 6-60V ±5.0% Integrated Low-side CCR etssop-16 IS31LT3170/1 Linear 2-40V - Integrated Emergency lighting, retail lighting SOT23-6 Four 350 ma channel current sinks. Support for external ballast transistor Adjustable CCR 10 to 150mA, negative thermal coeff., low / high side, IS32LT3171 PWM dimming S=Q1/14 S=Q1/14 Evaluation Boards * Note : Visit for a complete list of Evaluation Boards. Device Evaluation Board Description IS31LT3135 IS31LT3135-V1GRLS2-EB Dual Ch V IS31LT3350 IS31LT3350-V1SDLS2-EB3CH 3CH IS31LT3354 IS31LT3354_STLS2_EBDCDC AC Input IS31LT3360 IS31LT3360-SDLS3-EBMR16 IS31LT3360-SDLS3-EBAIC MR16 AIC IS31LT3380 IS31LT3380_GRLS3_EBMR16 1.2A MR16 IS31LT3505 IS31LT3505-SLS2-EBDC Constant Current Device Evaluation Board Description IS31LT3910 IS31LT3910_T8_EB T8 Evaluation Board IS31LT3916 IS31LT3916_EB_T8ISO_V01A IS31LT3916_EB_BULB_V01A IS31LT3918 IS31LT3918_GRLS2_EBT8 T8 T8 Isolated Bulb IS31LT3932 IS31LT3932-GRLS2-EBBULB 10LEDLoad IS31LT3935 IS31LT3935-EBBULB-ISO110 A19 IS31LT3938 IS31LT3938-GRLS2-EBBULB IS31LT3938-GRLS2-EBT8 Bulb T8 IS31LT3948 IS31LT3948-GRLS2-EBAC General 18 February Buckeye Dr. Milpitas, CA analog@issi.com
19 Part Decoder Ordering Information IS 31 LT 3135 V1-GR L S2 ISSI prefix uct Family uct Type Part Number Temp. Grade Solder Type Package Code Voltage/Parameter Analog uct Family 31 = Analog and Mixed Signal 32 = Automotive Analog and Mixed Signal uct Type AP = Audio Power Amplifier BL = White LED DRiver for LCD Backlight FL = FxLED Driver LT = Lighting LED Driver Temperature Grade S1 = Commercial (0ºC to 70ºC) S2 = Industrial temp. (-40ºC to 85ºC) S3 = Industrial temp. (-40ºC to 105ºC) S4 = Industrial temp. (-40ºC to 125ºC) A1 = Automotive Grade (-40ºC to +85ºC) A2 = Automotive Grade (-40ºC to +105ºC) A3 = Automotive temp. (-40 to 125ºC) Solder Type Blank = Sn/Pb L = Lead-free (RoHS Compliant) Package Type C = WCSP D = DFN GR = SOP QF = QFN S = MSOP SD = SOT89 ST = SOT23 TT = TSOT23 UT = UTQFN Z = TSSOP Voltage Range / Parameters Sense Voltage Range V1 = 91mV to 101mV V2 = 99mV to 110mV Under-Voltage Range V1 = 1.13V to 1.21V V2 = 1.19V to 1.26V February Buckeye Dr. Milpitas, CA analog@issi.com 19
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