HBLED Driver Selection Graphical Selector Guide DC/DC Buck DC/DC Boost AC/DC Buck Constant Current IS31LT3916 IS32LT3953 IS31LT3938 IS32LT3120 IS31LT3918 IS32LT3180 8-Channel, 10 to 75mA/CH 100KHz to 2MHz, 3.0A dimmable, with protecon <256VAC External MosFET Integrated PFC Flyback Config 2-Channel, 200mA/CH De-bounce, Fade IN/OUT Higher Drive MosFET Linear/PWM/Switch Dim Over Temp/Cur/Volt Prot dual intensity, fault report External MosFET Linear/PWM/Switch Dim Over Temp/Cur/Volt Prot VIN IS31LT3953 IS31LT3910 Integrated MosFET (3.0A) 100kHz to 2MHz External MosFET Linear/PWM Dimming Temp. Compensaon IS31LT3350 IS31LT3932 Integrated MosFET (750mA) Linear/PWM Dimming <40VDC AC/DC Flyback IS31LT3352 Integrated MosFET (750mA) Linear/PWM Dimming Temp. Compensation IS31LT3353 Integrated MOSFET(1A) Linear/PWM Dimming Universal Input, High PF, Low THD, Non-Dimmable IS31LT3933 Universal input, High PF, Low THD, Non-Dimmable IS31LT3935 TRIAC Dimmable, High PF, small DFN package IS31LT3360 IS31LT3948 External MosFET PFM Boost, PWM dimming OverTemp/Volt Protec IS31LT3552 IS32BL3552 IS31LT3117 IS32BL3554 8 Channel, 10 to 75mA/CH, dual intensity, fault report 4-Channel, 350mA/CH 5% accuracy 2 channel, 40 to 360mA/CH, 1.5% accuracy IS32LT3170 Adjustable 10 to 150mA IS31LT3505 5 to 35V Buck/Boost, Analog or PWM Dimming IS31LT3171 IS32LT3171 IS31LT3170 IS32LT3172 Adjustable 10 to 150mA, PWM dimming input Adjustable 10 to 150mA IS31LT3380 <6VDC Adjustable 10 to 200mA Adjustable 10 to 200mA PWM Dimming IS31LT3354 IS31LT3135 External MosFET Linear/PWM Dimming Integrated MosFET Main/Aux Dual Channel AC/DC Buck DC/DC Boost Linear Driver 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 Adjustable 10 to 150mA, PWM dimming input IS32LT3173 Integrated MosFET (1.2A) Switch Dimming DC/DC Buck 4-Channel, 20 to 180mA/CH 1.5% accuracy 4-Channel, Integrated Power MOS, 100mA/CH, 0.8% accuracy 4 channel, 20 to 180mA/CH, 1.5% accuracy Integrated MosFET (2.0A) 1Mhz Switching OverTemp Protecon 2-Channel, 40 to 360mA/CH 1.5% accuracy IS32BL3556 IS31LT3554 IS31LT3515 Integrated MosFET (1.2A) Linear/PWM Dimming IS31LT3180 February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com Automove Continuous Mode Buck Converter 6 to 40VDC DC/DC Buck IS31LT3350 - 750mA Buck w/ Integrated Switch IS31LT3353 - 1A Buck w/ Integrated Switch Features • 750mA output current with 5% accuracy (IS31LT3350) • 1A output current with 3% accuracy (SI31LT3353) • 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 IS31 Applications LT3 3 50 • MR16 LED spotlight SOT89-5 SOT23-5 • LED Streetlamp, wall-washer, decorative lighting • Automobile LED decorative lights IS31LT3360- 1.2A Buck w/ Integrated Switch Features • 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: -40oC to +105oC, S4: -40oC to +125oC IS31 LT3 3 60 Applications • MR16 LED spotlight SOT89-5 • LED Streetlamp, wall-washer, decorative lighting • Automobile LED decorative lights February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com 3 Continuous Mode Buck Converter 6 to 40VDC DC/DC Buck IS31LT3354 - Buck w/ External Switch Features • 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 SOT23-5 IS31LT3352 - 750mA Buck w/ Temperature Compensation Features • 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 SOP-8 4 • Decorative Lighting February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com DC/DC Buck Continuous Mode Buck Converter 6 to 40VDC IS31LT3953 V IN (4.5V to 48V) RFREQ PWM (100Hz to 2kHz) IS31LT3953 - 3A Buck w/ Integrated Switch VIN LX Features TON FB • 4.5V to 48V input EN GND • Up to 3A output current CS VCC • Cycle-by-cycle current limit • Single pin ON/OFF and brightness control using Linear or PWM RISET • Robust protection against: Adjacent pin-to-pin short Pin-to-GND short Component open/short faults • Low power shutdown (1 μA typical) SOP-8EP IS31LT3380 - 1.2ABuck w/ Switch Dimming Features • 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 SOP-8 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 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com 5 DC/DC Boost IS31LT3948 - Boost w/ PFM Mode Features • 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 • Extended temp range: -40 to 1250C SOP-8 1A IS31LT3505 - 1A Boost w/ Integrated Switch Features • 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 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com DC/DC Buck-Boost IS31LT3515- Buck, Boost or Buck-boost Topology Features • 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 SOP-16 • Protections: Over voltage Short circuit Under voltage Over Temperature February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com 7 AC/DC Buck-Boost TRIAC Dimmable IS31LT3935 IS31LT3935 - TRIAC Dimming Features • 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 Figure 1 Typical Application Schematic • Low component count • Low 500μA quiescent current with soft start • Spread Spectrum switching for reduced EMI • Efficiency: 87% from 120Vrms to 39VDC DFN10-EP eTSSOP-16 Integrated Silicon Solution, Inc. – www.issi.com Rev. C, 07/10/2014 8 1 February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com AC/DC Buck *Switch ON/OFF cycles the DIM Ratio 1A IS31LT3918 - Switch and 3-level Dimming Features • 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 SOP-8 For both IS31LT3918 and IS31LT3938 *Switch ON/OFF cycles the DIM Ratio IS31LT3938 - Switch and 3-level Dimming Features • 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 SOP-8 February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com 9 AC/DC Buck-boost, Flyback IS31LT3916 - Flyback, Buck-boost Isolated LED Driver with Integrated PFC Features • Active Power Factor Correction to > 0.95 • 5% 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 MSOP-8 IS31LT3932 - True Constant Current Features • 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 SOP-8 10 • Integrated protections - No Load and open feedback protection - UVLO, OCP, OVP and OTP protections February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com AC/DC Buck or Isolated Fuse BD D1 TR C1 C6 D2 R10 R1 U1 3933 VIN VCC C2 FSET R2 R4 D4 Q1 GATE VSINE R11 CS GND OVP LED DRIVER R5 C3 R3 IS31LT3933 - HIGH PF LOW THD UNIVERSAL D3 Rcs R9 Features • Universal isolation and non-isolation • Single stage PFC fly-back • Low THD w/ no loop compensation required R8 R6 C4 R7 • No opto-coupler required • ±5% LED current accuracy • ±3% line regulation • ±3% load regulation • Wide input voltage: 85~305VAC • Low start-up current(15uA) • Few external components SOP-8 • UVLO,OCP,OVP and OTP protections • SOP-8 package February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com 11 Boost + Linear Driver IS31LT3552 - Two Channel Boost Features • 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 eTSSOP-16 IS31LT3554 - Four Channel Boost Features • 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 eTSSOP-16 12 February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com Linear IS31LT3135 - Main/Aux Dual Channel LED Driver with Automatic Switchover Features • 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 SOP-8 IS31LT3117 - 4-Channel CCR Features • 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-16 February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com 13 Linear Driver IS31LT3170- 10-to-150mA CCR Features • 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 42V • Low or high side current control • Negative thermal coefficient of -0.2 %/K reduces output current at higher temperatures • SOT23-6 package SOT23-6 IS31LT3171 - 10-to-150mA CCR with PWM Features • 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 42V • Low or high side current control • Negative thermal coefficient of -0.2 %/K reduces output current at higher temperatures • SOT23-6 package SOT23-6 14 February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com Automotive Linear Driver IS32LT3120 - Dual Channel CCR with Fade IN/OUT Features • 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, over temperature • Automotive AEC-Q100 Qualified (Pending) SOP‐8EP 1kΩ Q1 TAIL RGS 1kΩ STOP 50Ω 3 220nF CVCC 1µF 10kΩ 2 Intensity CCR 6 5 RTAIL 7.72kΩ Features ERC VCC IS32LT3180 7 10nF RSTOP 3.09kΩ IS32LT3180 - Eight Channel, Dual VSTRING 0.1µF 8 FAULT OUT1 PWM STOP OUT8 TAIL FB GND 1 RFB1 8.87kΩ 9 4 13 RFB2 1kΩ • 6V-50V 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 eTSSOP-16 • Automotive AEC-Q100 Qualified (Pending) February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com 15 Automotive Linear Driver IS32LT3170 - 10-to-150mA CCR Features • 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 42V • Low or high side current control • Negative thermal coefficient of -0.2%/K reduces output current at higher temperatures • SOT23-6 package • Automotive AEC-Q100 Qualified (Pending) SOT23-6 IS32LT3171 - 10-to-150mA CCR with PWM Features • 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 42V • Low or high side current control • Negative thermal coefficient of -0.2 %/K reduces output current at higher temperatures • SOT23-6 package • Automotive AEC-Q100 Qualified (Pending) SOT23-6 16 February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com Automotive Linear Driver IS32LT3172 - 10-to-200mA CCR Features +VS 3 EN GND •Low-side current3sink 5~8 Micro Controller -Current GND 5~8 4 REXT OUT REXT EN preset to 10mA • AdjustablePWM from 10mA to 200mA with IS32LT3173 external resistor selection IS32LT3172 4 +VS • Wide input voltageREXT range from 1,2 REXT • 5V to 42V (IS32LT3172) OUT 1,2 • with a low dropout of 0.5V • Protection features: • 0.2%/K negative temperature coefficient for thermal protection -Open circuit and over voltage protection • SOP-EP8 package • RoHS compliant (Pb-free) package SOP-8EP • Automotive AECQ-100 qualified (pending) IS32LT3173 - 10-to-200mA CCR with PWM +VS 3 Micro Controller EN 5~8 IS32LT3173 PWM 4 GND REXT REXT OUT 1,2 Features • Low-side current sink -Current preset to 10mA - Adjustable from 10mA to 200mA with external resistor selection • Wide input voltage range from -2.8V to 42V (IS32LT3173) • with a low dropout of 0.5V • Up to 10kHz PWM input • Protection features: -0.2%/K negative temperature coefficient for thermal protection -Open circuit and over voltage protection SOP-8EP • SOP-EP8 package • RoHS compliant (Pb-free) package • Automotive AECQ-100 qualified (pending) February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com 17 Automotive Boost Backlight Driver IS32BL3552 - Two Channel Boost Features • 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 eTSSOP-16 IS32BL3554 - Four Channel Boost Features • 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 eTSSOP-16 18 February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com Automotive Boost Backlight Driver VBattery 8V~16V C IN 4.7 F 50V R SC 0.033 R ADJ 249 OPTIONAL L1 10 H Q1 CC 22 nF RC 20 1 2 3 VCC 100k 4 6 15 C VCC 0.1 F RZ 120 CZ 0.47 F SW OVP 5 18 17,16 C OUT 4.7 F 50V FAULTB EN/PWM APWM VCC LED1 LED2 LED3 COMP ISET FR/SYNC PGND AGND Features • 4 current sinks adjustable up to 100mA VIN LED4 CP 120p F 8 R OVP 137k SENSE IS32BL3556 10 Micro Controller GATE IS32BL3556 - Four Channel Boost D1 2A / 60V -String-to-string current matching of 0.8% -High contrast ratio -External PWM dimming 14 13 12 11 9 8 10 R FR 10k R SET 8.25k • Input voltage range: 4.75V to 40V • Integrated Power MOSFET • Operating frequency upto 2.3MHz -Synchronize capable • Protections for: OCP, OTP, UVLO, LED open/ short, programmable OVP • Provide driver for external PMOS input disconnect switch • Automotive AEC-Q100 Qualified (Pending) eTSSOP-24 February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com 19 Automotive DC/DC Buck IS31LT3953 V IN (4.5V to 48V) RFREQ PWM (100Hz to 2kHz) VIN LX TON FB EN GND CS VCC IS32LT3953 - 3A Buck w/ Integrated Switch Features • Up to 3A output current • Cycle-by-cycle current limit • Single pin ON/OFF and brightness control using Linear or PWM RISET • Robust protection against: - Adjacent pin-to-pin short - Pin-to-GND short - Component open/short faults • Low power shutdown (1 mA typical) • Automotive AEC-Q100 Qualified (Pending) SOP‐8EP 20 February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com Ordering Information Product Selector Guide Switching (AC/DC & DC/DC) Part No. Driver VIN (V) IOUT Accuracy Effcy (%) Power Typical Transistor Applications IS31LT3350 DC/DC Buck 6-40 750mA ±5% 95 Built-in IS31LT3352 DC/DC Buck 6-40 750mA ±5% 95 IS31LT3353 DC/DC Buck 6-40 Iout: 1A +/-3% IS31LT3354 DC/DC Buck 6-40 IS31LT3360* DC/DC Buck IS31LT3380 Package Key Feature Status Low voltage LED lighting, MR16 replacement SOT23-5, SOT89-5 Single pin ON/OFF or brightness control with DC/PWM, thermal shutdown Prod Built-in Low voltage LED lighting, MR16 replacement SOP-8 Cascadable, temp. compensation and Prod one pin ON/OFF/dimming control 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 Prod < 2.5A ±5% 98 External Low volt. LED lightSOT23-5 ing, Illuminated sign 1200:1 dimming ratio LED driver with thermal shutdown protection Prod 6-40 1.2A ±3% 98 Built-in MR16, MR11 spot light, PAR light SOT89-5 High efficiency with buck converter, with analog or PWM dimming Prod DC/DC Buck 8.5-40 1.2A ±5% 98 Built-in MR16, MR11 spot light, PAR light SOP-8 3-level switch dimming control, open/short and thermal shutdown protection Prod IS31LT3505 DC/DC Boost 6-30 24W ±5% 90 Built-in Battery powered LED, solar light MSOP-10 1MHz Boost Converter with 30V Internal NMOS Prod IS31LT3515 DC/DC 5-35 ±3% 90 External Industrial, street lighting SOP-16 35V Buck/Boost, Buck/Boost operation S=Q2/15 IS31LT3948 DC/DC Boost 5-100 - 90 External Street lamp, LED lighting, Gen. illum. SOP-8 Wide input voltage range, Boost, over-voltage/temperature protection Prod IS31LT3910 AC/DC 8-450 DC 110/220 AC 500mA ±7% 90 External T8, PAR light SOP-8 Non-isolation, linear/PWM dimming, temperature compensation Prod IS31LT3916 AC/DC 90-260 AC PF > 0.9 85 External T8, Bulb Replacement, PAR light MSOP-8 Isolated and Non-Isolated; Offline LED Driver with Active PFC Prod IS31LT3953 DC/DC Buck 6-48V - Integrated 3APWM Dimmable Lighting SOP-8EP 200kHz to 2Mhz DC/DC 3.0A dimmable buck regulator with robust protection features S=Q2/15 Switching (AC/DC & DC/DC) Part No. Driver VIN (V) IOUT Accuracy Effcy (%) Power Transistor Typical Applications IS31LT3918 DC/DC AC/DC 6-450 DC 85-265 AC ±3% 95 External IS31LT3932 AC/DC 85-265 AC PF > 0.95 >85 IS31LT3933 AC/DC 85-305 AC PF > 0.95 IS31LT3935 AC/DC 110/220 AC PF > 0.95 IS31LT3938 DC/DC, AC/DC 10-450 DC 85-265 AC ±3% Package Key Feature Status LED Lighting; Signal SOP-8 & decor. lighting, T8 High voltage LED driver with 3-level Switch Dimming Prod External Retrofit Bulb, Tube, PAR Lighting SOP-8 High Power factor, Low THD Universal Constant Current Prod >85 External Retrofit Bulb, Tube, PAR Lighting SOP-8 High Power factor, Low THD Universal Constant Current S=Q1/15 87 External Bulb Replacement, spot light, PAR light DFN10 eTSSOP-16 25W Triac Dimmable Active PF Isolated and Non-Isolated Prod 95 External LED Lighting; Signal SOP-8 & decorative lighting High voltage LED driver with Switch Dimming, Single External FET Prod * -40°C to +125°C Extended Temperature range option available February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com 21 Ordering Information Product Selector Guide cont’d. Automotive (Industrial) Part No. Driver VIN (V) IOUT Power Accuracy Transistor Typical Applications Package Key Feature IS32BL3552 DC/DC Boost 4.5 - 33V ±1.5% External Automotive lighting, LCD display backlight eTSSOP-16 Two channel LED current sinks, 40 to 360mA AECQ100 per string. String-to-string accuracy 1.5% qualified IS32BL3554 DC/DC Boost 4.5 - 33V ±1.5% External Automotive lighting, LCD display backlight eTSSOP-16 Four 20 to 180mA channel current sinks. AECQ100 String-to-string accuracy 1.5% qualified IS32BL3556 DC/DC Boost 4.75 - 40V ±0.8% External Automotive lighting, LCD monitor backlight eTSSOP-24 Four 100mA channel current sinks. String-to-string accuracy 0.8% S=Q2/15 IS32LT3953 DC/DC Buck 6 - 48V - Integrated Automotive lighting, dimmable cabin light SOP-8EP 200kHz to 2Mhz DC/DC 3.0A dimmable buck regulator with robust protection features S=Q2/15 IS32LT3120 Linear 5 - 45V - Integrated Automotive cabin lighting, map & dome light SOP-8EP Two channel CCR with two debounced switch inputs, LED fade IN/OUT Sample IS32LT3170/1 Linear 2.8 - 42V - Integrated Automotive lighting, emergency lighting, retail lighting SOT23-6 Adjustable CCR 10 to 150mA, negative thermal coeff., low / high side, IS32LT3171 PWM dimming S=Q2/15 IS32LT3172/3 Linear 2.8 - 42V - Integrated Automotive cabin lighting, map & dome light SOP-8EP Adjustable CCR 10 to 200mA, negative thermal coeff., low / high side, IS32LT3173 PWM dimming S=Q2/15 IS32LT3180 Linear 6 - 60V ±5.0% Integrated Automotive RCL, CHMSL, eTSSOP-16 fog lamps, turn signal Eight channel, dual intensity, CCR with fault reporting, 10-75mA Sample IOUT Accuracy Power Transistor Typical Applications Package Key Feature Status Miner lamp, Torch, Battery powered LED lighting SOP-8 Main/sub dual-channel driver with short circuit and over temp. protection Prod eTSSOP-16 Four 350 mA channel current sinks. Support for external ballast transistor Prod Status Linear Part No. Driver VIN (V) IS31LT3135 Constant 2.7-5.5 Current 500mA ±5% Built-in IS31LT3117 Linear 6 - 53V ±5.0% Integrated Low-side CCR IS31LT3170/1 Linear 2.8 - 42V - Integrated Emergency lighting, retail lighting SOT23-6 Adjustable CCR 10 to 150mA, negative thermal coeff., low / high side, IS31LT3171 PWM dimming S=Q2/15 IS31LT3172/3 Linear 2.8 - 42V - Integrated Emergency lighting, retail lighting SOP-8EP Adjustable CCR 10 to 200mA, negative thermal coeff., low / high side, IS31LT3173 PWM dimming S=Q2/15 Evaluation Boards * Note : Visit www.issi.com for a complete list of Evaluation Boards. Device Evaluation Board Description Device Evaluation Board Description IS31LT3910_T8_EB T8 Evaluation Board IS31LT3135 IS31LT3135-V1GRLS2-EB Dual Ch. - 1.17V IS31LT3910 IS31LT3350 IS31LT3350-V1SDLS2-EB3CH 3CH IS31LT3916 IS31LT3916_EB_T8ISO_V01A IS31LT3916_EB_BULB_V01A T8 Isolated Bulb IS31LT3354 IS31LT3354_STLS2_EBDCDC AC Input IS31LT3918 IS31LT3918_GRLS2_EBT8 T8 IS31LT3360 IS31LT3360-SDLS3-EBMR16 IS31LT3360-SDLS3-EBAIC MR16 AIC IS31LT3932 IS31LT3932-GRLS2-EBBULB 10LEDLoad IS31LT3935 IS31LT3935-EBBULB-ISO110 A19 IS31LT3380 IS31LT3380_GRLS3_EBMR16 1.2A MR16 IS31LT3938 IS31LT3505 IS31LT3505-SLS2-EBDC Constant Current IS31LT3938-GRLS2-EBBULB IS31LT3938-GRLS2-EBT8 Bulb T8 IS31LT3948 IS31LT3948-GRLS2-EBAC General 22 February 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com Ordering Information Part Decoder IS 31 LT 3135 V1-GR L S2 ISSI prefix Product Family Product Type Part Number • Analog Product Family 31 = Analog and Mixed Signal 32 = Automotive Analog and Mixed Signal • Product Type AP = Audio Power Amplifier BL = White LED DRiver for LCD Backlight FL = FxLED Driver LT = Lighting LED Driver Temp. Grade Solder Type Package Code Voltage/Parameter • 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 2015 • 1623 Buckeye Dr. Milpitas, CA. 95035 • 408.969.6600 • [email protected] • www.issi.com 23 *HEADQUARTERS Central USA East Coast USA Southeast USA West Coast Copell, TX Dunstable, MA Raleigh, NC San Jose, CA 972-393-9900 Tel. 978-649-1216 Tel. 919-844-5873 Tel. 408-969-6600 Tel. 408-969-4749 Fax 978-649-3208 Fax China Hong Kong China-Shanghai China-Shenzhen China-Xiamen City 86-10-82274081 Tel. 852-23192211 Tel. 86-21-50802288 Tel. 86-755-88319800 Tel. 86-592-3228128 Tel. 86-10-82274082 Tel. 852-23192004 Fax 86-21-50802028 Fax 86-755-88319810 Fax 86-592-3228077 Fax India, Bangalore India, Chennai India, New Delhi Japan, Tokyo Korea, Kyunggi-Do 91-80-41472556 Tel. 91-44-42218428 Tel. 91-11-46536132 Tel. 81-3-5339-2950 Tel. 82-31-715-6406 Tel. 91-80-41472558 Fax 91-44-42218222 Fax 91-80-22251133 Fax 81-3-5339-2951 Fax 82-31-715-6209 Fax Singapore Taiwan, Hsin-Chu Taiwan, Taipei Europe +65-6316-3035 Tel. 886-3-5780333 Tel. 886-2-26962140 Tel. 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