FLS0116 MOSFET Integrated Smart LED Lamp Driver IC with PFC Function Features Description The FLS0116 LED lamp driver is a simple IC with integrated MOSFET and PFC function. The special “adopted digital” technique automatically detects input voltage condition and sends an internal reference signal to achieve high power factor. When AC input is applied to the IC, the PFC function is automatically enabled. When DC input is applied to the IC, the PFC function is automatically disabled. The FLS0116 does not need a bulk (electrolytic) capacitor for supply rail stability, which significantly improves LED lamp life. Built-in MOSFET(1 A / 550 V) Digitally Implemented Active-PFC Function No Additional Circuit for Achieving High PF Application Input Range: 80 VAC ~ 308 VAC Built-In HV Supplying Circuit: Self Biasing AOCP Function with Auto-Restart Mode Built-In Over-Temperature Protection (OTP) Cycle-by-Cycle Current Limit Current Sense Pin Open Protection Low Operating Current: 0.85 mA (Typical) Under-Voltage Lockout with 5 V Hysteresis Programmable Oscillation Frequency Programmable LED Current Analog Dimming Function Soft-Start Function Precise Internal Reference: ±3% Applications L1 LED D1 L3 FLS0116 Fuse CS DRAIN BD C1 VCC C2 HV GND RT R1 ADIM C3 C4 R2 L2 Figure 1. Typical Application LED Lamp for Decorative Lighting LED Lamp for Low-Power Lighting Fixture Ordering Information Part Number Operating Temperature Range FLS0116MX -40°C to +125°C © 2012 Fairchild Semiconductor Corporation FLS0116 • Rev. 1.0.2 Package 7-Lead, Small-Outline Integrated Circuit (SOIC), JEDEC MS-012, .150-inch, Narrow Body Packing Method Tape & Reel www.fairchildsemi.com FLS0116 — MOSFET Integrated Smart LED Lamp Driver IC with PFC Function June 2013 FLS0116 — MOSFET Integrated Smart LED Lamp Driver IC with PFC Function Block Diagram VCC 2 JFET VCC 7 HV ZCD UVLO time IAD ADIM 8 DRAIN ZCD 5 DAC Soft-Start TSD Digital Block RT 4 Oscillator R - Q S Reference + 1 CS LEB GND Leading-Edge Blanking 3 FLS0116 + AOCP 2.5V Figure 2. Block Diagram Pin Configuration DRAIN FLS0116 CS VCC GND HV ADIM RT Figure 3. Pin Configuration Pin Definitions Pin # Name Description 1 CS Current Sense. Limits output current, depending on the sensing resistor voltage. The CS pin is also used to set the LED current regulation. 2 VCC VCC. Supply pin for stable IC operation; ZCD signal detection used for accurate PFC function. 3 GND GROUND. Ground for the IC 4 RT 5 ADIM 7 HV 8 DRAIN RT. Programmable operating frequency using an external resistor; the IC has pre-fixed frequency when this pin is open or floating. Analog Dimming. Connect to the internal current source. Use to change the output current using an external resistor. If ADIM is not used, connect a 0.1 µF bypass capacitor between the ADIM and GND. High Voltage. Connect to the high-voltage line and supply current to the IC. DRAIN. The drain pin of internal MOSFET © 2012 Fairchild Semiconductor Corporation FLS0116 • Rev. 1.0.2 www.fairchildsemi.com 2 Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol Parameter Min. Max. Unit VCC IC Supply Voltage 20 V HV High Voltage Sensing 550 V DRAIN Internal Drain Voltage 550 V Analog Dimming 5 V VADIM VRT RT Pin Voltage 5 V VCS Allowable Current Sensing Detection Voltage 5 V TA Operating Ambient Temperature Range -40 +125 C TJ Operating Junction Temperature -40 +150 C -65 +150 C 135 C/W 660 mW TSTG Storage Temperature Range θJA Thermal Resistance Junction-Air PD Power Dissipation ESD (1,2) Electrostatic Discharge Capability Human Body Model, JESD22-A114 2000 Charged Device Model, JESD22-C101 1000 V Notes: 1. Thermal resistance test board. Size: 76.2 mm x 114.3 mm x 1.6 mm (1S0P); JEDEC standard: JESD51-2, JESD513. 2. Assume no ambient airflow. © 2012 Fairchild Semiconductor Corporation FLS0116 • Rev. 1.0.2 www.fairchildsemi.com 3 FLS0116 — MOSFET Integrated Smart LED Lamp Driver IC with PFC Function Absolute Maximum Ratings Typical values are at TA = +25°C. Specifications to -40°C ~ 125°C are guaranteed by design based on final characterization results. Symbol Parameter Condition Min. Typ. Max. Unit VCC Bias Section VCC Regulator Output Voltage VHV=100 VDC 14.0 15.5 17.0 V VCCST+ VCC UVLO Positive-Going Threshold VCC Increasing 12 13 14 V VCCST- UVLO Negative-Going Threshold VCC Decreasing 7 8 9 V VCCHYS UVLO Hysteresis 4 5 6 V 0.85 1.20 mA 120 150 μA IHV HV Pin Current IST Startup Current VHV=100 VDC, RT=Open Switching Section fOSC tMIN DMAX Operating Frequency Minimum On Time RT=5.95 kΩ 200 250 300 kHz RT=87 kΩ 16 20 24 kHz RT Open 40.5 45.0 49.5 kHz (3) Maximum Duty Cycle tLEB Leading Edge Blanking Time VRT Voltage Reference of RT Pin (3) 400 ns 50 % 350 ns 1.5 V Soft-Start Section tss Soft-Start Time DC Mode (3) 48 AC Mode 60 72 ms 7 Periods Reference Section VCS1 Internal Reference Voltage of CS Pin VCS2 DC Mode AC Mode (3) 0.354 0.365 0.376 0.485 0.500 0.515 17.7 18.7 19.7 V Protection Section OVPVCC VAOCP Over-Voltage Protection on VCC Pin Abnormal OCP Level at CS Pin (3) 2.5 (3) tAOCP Abnormal Detection Time TTSDH Thermal Shutdown Threshold TTSDHY Thermal Shutdown Threshold (3) Hysteresis (3) 140 Dimming Section Analog Dimming Positive Going VADIM(ST+) (3) Threshold Analog Dimming Negative Going VADIM(ST-) (3) Threshold IAD 3.15 Internal Current Source for ADIM Pin 9 V V 70 ns 150 °C 50 °C 3.50 3.85 V 0.50 0.75 V 12 15 μA Continued on the following page… © 2012 Fairchild Semiconductor Corporation FLS0116 • Rev. 1.0.2 www.fairchildsemi.com 4 FLS0116 — MOSFET Integrated Smart LED Lamp Driver IC with PFC Function Electrical Characteristics Typical values are at TA = +25°C. Specifications to -40°C ~ 125°C are guaranteed by design based on final characterization results. Symbol Parameter Condition Min. VCC=0 V, ID=250 μA 550 Typ. Max. Unit 250 μA 10.0 Ω MOSFET Section BVDSS Breakdown Voltage ILKMOS Internal MOSFET Leakage Current VDS=550 VDC, VGS=0 V RON(ON) Drain-Source On Resistance CISS COSS Input Capacitance (3) (3) Output Capacitance (3) CRSS Reverse Transfer Capacitance td(ON) Turn-On Delay tr td(OFF) tf (3) Rise Time (3) (3) Turn-Off Delay Fall Time (3) (3) V VGS=10 V, VDGS=0 V, TC=25°C 7.3 VGS=0 V,VDS=25 V, f=1 MHz 135 pF VGS=0 V,VDS=25 V, f=1 MHz 21 pF VGS=0 V,VDS=25 V, f=1 MHz 3.2 pF VDD=350 V, ID=1 A 10 ns VDD=350 V, ID=1 A 13.4 ns VDD=350 V, ID=1 A 14.9 ns VDD=350 V, ID=1 A 36.8 ns Note: 3. These parameters, although guaranteed, are not 100% tested in production. © 2012 Fairchild Semiconductor Corporation FLS0116 • Rev. 1.0.2 www.fairchildsemi.com 5 FLS0116 — MOSFET Integrated Smart LED Lamp Driver IC with PFC Function Electrical Characteristics (Continued) The FLS0116 is a basic PWM controller for buck converter topology in Continuous Conduction Mode (CCM) with an intelligent PFC function that uses a digital control algorithm. An internal self-biasing circuit uses the high-voltage switching device. The IC does not need an auxiliary powering path to the VCC pin typical in flyback control ICs or PSR product family. power for the IC, has voltage ripple as well as the rectification voltage after bridge, changing voltage level according to the VCC capacitor value. Using this kind of voltage fluctuation on the VCC pin, the IC can detect the time reference and create the internal ZCD signal. For precise and reliable internal reference for input voltage signal, the FLS0116 uses a digital technique (sigma/delta modulation) and creates a new internal signal (DAC_OUT) that has the same phase as the input voltage, as shown in Figure 5. This signal enters the final comparator and is compared with current information from the sensing resistor. When the input voltage applied to the HV pin is within operating range (25 V to 500 V), the FLS0116 maintains a 15.5 V DC voltage at the VCC pin for stable operation. The UVLO block functions such that when the VCC voltage rises higher than VCCST+, the internal UVLO block releases and starts operation. Otherwise, the VCC goes down to the VCCST- and IC operation stops. Normally, the hysteresis function provides stable operation even if the input voltage is operating under very noisy or unstable circumstances. Vbridge Bridge Diode Output Voltage JFET Output Voltage Input Voltage Peak The FLS0116 has a “smart” internal digital block for determining input condition: AC or DC. When an AC source with 50 Hz or 60 Hz is applied to the IC, the IC automatically changes its internal reference signal, which is similar to input signal, for creating high power factor. When a DC source connects to the IC, the internal reference immediately changes to DC. t VDD Charging Voltage VCC JFET Output Voltage t ZCD t DAC_OUT t Soft-Start Function Figure 5. Internal PFC Function The FLS0116 has an internal soft-start function to reduce inrush current at startup. When the IC starts operation following an internal sequence, the internal reference slowly increases for a pre-determined fixed time. After this transient period, the internal reference goes to a steady-state level. In this time, the IC continually tries to find phase information from the VCC pin. If the IC succeeds in getting phase information, it automatically follows a similar shape reference made during the transient times, 7 periods. If not, the IC has a DC reference level. Self-Biasing Function The self-biasing function, using an HV device, can supply enough operating current to the IC and guarantee similar startup time across the whole input voltage range (80 V~308 VAC). However, self-biasing has a weakness in high-voltage condition. Normally, the HV device acts as constant current source, so the internal HV device has power loss when high input voltage connects to the HV pin. This power loss is proportional to input voltage. To reduce this power loss, one of the possible solutions is an additional resistor between the input voltage source and the HV pin, as shown in Figure 6. Vbridge ILED L1 LED D1 T/2 = 1/(Input Frequency * 2) 7*(T/2) CS Figure 4. Soft-Start Function in AC Input Mode DRAIN BD C1 VCC C2 HV R3 GND RT Internal PFC Function: How to Achieve High Power Factor R1 ADIM C3 R2 C4 L2 The FLS0116 has a simple, “smart”, internal PFC function that does not require additional pins for detecting input phase information or an electrolytic capacitor for supply voltage stabilization. For achieving high PF, the FLS0116 does not use the rectification capacitor after the bridge diode. This is important because the IC instead uses fluctuation in the signal on the VCC pin. Basically, the VCC pin, which is supplies © 2012 Fairchild Semiconductor Corporation FLS0116 • Rev. 1.0.2 L3 FLS0116 Fuse Normal Operation Figure 6. High-Voltage Application www.fairchildsemi.com 6 FLS0116 — MOSFET Integrated Smart LED Lamp Driver IC with PFC Function Functional Description The FLS0116 uses the ADIM pin for analog or 0 V to 10 V dimming by using a resistive divider. The peak voltage of internal reference, which is DAC_OUT signal in Figure 5, is changed by the VADIM level, as shown in Figure 7, and has different peak level according to the operating mode. Lm n V f (1 Dmin ) f s i rip VDAC _ OUT AC Mode I LED ( rms) 0. 5 V 3 . 5V irip (3) [A] 2 In FL7701, the LED RMS current determines the inductance parameter. To drive for CCM Mode, define LED RMS current first, as: DC Mode 0.365V (2) If the peak current is fixed at 350 mApk, the formula for the peak current is: I LED ( ave. peak) icon 0 .5 V [H ] I LED ( ave. peak) [A] 2 (4) Substituting Equation (2) for Equation inductance of inductor is obtained. VADIM (4), the Figure 7. VADIM vs. VDAC_OUT(peak) VIN Inductor Design Π The fixed internal duty ratio range is below 50%, or around 400 ns, from a timing point of view. The range is dependent on the input voltage and number of LEDs in its string. Dmin 4Π t Bridge Diode Output Voltage Vbridge Input Voltage Peak Minimum duty is calculated as: 3Π 2Π VDD Charging Voltage t ZCD t n V f DAC (1) Vin (max) t VLED where: η = efficiency of system; VIN(max)= maximum input voltage; Vf = forward drop voltage of LED; and n = LED number in series connection. Vdrain t Input Voltage Peak t ILED Input Voltage Peak Current Limit t Average LED Current ∆irip IFRD t IMOSFET ton toff Dmin 1-Dmin t (a) DCM Mode Iinput Current peak at LED current maximum point (ILED(peak)) Current peak at LED average current maximum point (ILED(ave.peak)) DCM Average LED Current (ILED(ave)) ∆i 0.5∆i t T/2 = 1/(Input Frequency * 2) DCM T = 1/Input Ferquency 0.5∆i Figure 9. Typical Performance Characteristics CCM Current min at LED current maximum point (ILED(min)) Dmin 1-Dmin ton toff (b) CCM Mode Figure 8. DCM and CCM Operation © 2012 Fairchild Semiconductor Corporation FLS0116 • Rev. 1.0.2 www.fairchildsemi.com 7 FLS0116 — MOSFET Integrated Smart LED Lamp Driver IC with PFC Function In DCM Mode, inductance is: Dimming Function FLS0116 — MOSFET Integrated Smart LED Lamp Driver IC with PFC Function Example Application Circuits L1 LED D1 L3 FLS0116 Fuse CS DRAIN BD C1 HV VCC C2 GND RT R1 ADIM C3 C4 R2 L2 Figure 10. Application Circuit without Electrolytic Capacitor L1 LED ZD C5 D1 L3 FLS0116 Fuse CS DRAIN BD C1 VCC C2 HV GND RT ADIM R1 C3 C4 R2 L2 Figure 11. Application Circuit with Electrolytic Capacitor L1 FLS0116 CS Fuse VCC DRAIN HV R1 GND BD C1 C2 RT L3 ADIM C4 R2 C3 LED D1 C5 ZD L2 Figure 12. Application Circuit of High-Side Operation with Electrolytic Capacitor © 2012 Fairchild Semiconductor Corporation FLS0116 • Rev. 1.0.2 www.fairchildsemi.com 8 17.0 6.0 16.5 5.5 VCCHV [V] VCC[V] 16.0 15.5 5.0 15.0 4.5 14.5 14.0 -40 -20 0 20 40 60 80 100 4.0 -40 120 -20 0 Temperature [°C] Figure 13. 20 40 60 80 100 120 Temperature [°C] VCC vs. Temperature Figure 14. 14.0 VCCHYS vs. Temperature 150 140 130 IST[A] VCCST+[V] 13.5 13.0 120 110 12.5 100 12.0 -40 -20 0 20 40 60 80 100 90 -40 120 -20 0 Temperature [°C] Figure 15. 20 40 60 80 100 120 100 120 Temperature [°C] VCCST+ vs. Temperature Figure 16. 9.0 IST vs. Temperature 48 47 fOSC [kHz] VCCST-[V] 8.5 8.0 46 45 7.5 44 7.0 -40 -20 0 20 40 60 80 100 43 -40 120 -20 Temperature [°C] Figure 17. 20 40 60 80 Temperature [°C] VCCST- vs. Temperature © 2012 Fairchild Semiconductor Corporation FLS0116 • Rev. 1.0.2 0 Figure 18. fOSC vs. Temperature (RT=Open) www.fairchildsemi.com 9 FLS0116 — MOSFET Integrated Smart LED Lamp Driver IC with PFC Function Typical Characteristics 1.7 22 1.6 VRT[V] fOSC [kHz] 24 20 18 1.5 1.4 16 -40 -20 0 20 40 60 80 100 1.3 -40 120 -20 0 Temperature [°C] Figure 19. Figure 20. fOSC vs. Temperature (RT=87kΩ) 60 80 100 120 VRT vs. Temperature 0.375 280 0.370 260 VCS1 [V] fOSC [kHz] 40 Temperature [°C] 300 0.365 240 0.360 220 0.355 200 -40 -20 0 20 40 60 80 100 0.350 -40 120 -20 0 Temperature [°C] Figure 21. 20 40 60 80 100 120 Temperature [°C] Figure 22. fOSC vs. Temperature (RT=5.95kΩ) 52 19.5 51 19.0 OVPVCC [V] DMAX [%] 20 50 49 VCS vs. Temperature 18.5 18.0 48 -40 -20 0 20 40 60 80 100 17.5 -40 120 -20 Temperature [°C] Figure 23. 20 40 60 80 100 120 Temperature [°C] DMAX vs. Temperature © 2012 Fairchild Semiconductor Corporation FLS0116 • Rev. 1.0.2 0 Figure 24. OVPVCC vs. Temperature www.fairchildsemi.com 10 FLS0116 — MOSFET Integrated Smart LED Lamp Driver IC with PFC Function Typical Characteristics 15 640 14 620 BVDSS [V] IAD[A] 13 12 11 600 580 10 560 9 -40 -20 0 20 40 60 80 100 120 -40 -20 0 Temperature [°C] Figure 25. 20 40 60 80 100 120 Temperature [°C] IAD vs. Temperature Figure 26. BVDSS vs. Temperature 0.5 IDSS [A] 0.4 0.3 0.2 0.1 0.0 -40 -20 0 20 40 60 80 100 120 Temperature [°C] Figure 27. IDSS vs. Temperature © 2012 Fairchild Semiconductor Corporation FLS0116 • Rev. 1.0.2 www.fairchildsemi.com 11 FLS0116 — MOSFET Integrated Smart LED Lamp Driver IC with PFC Function Typical Characteristics 5.00 4.80 A 3.81 0.65TYP 3.81 7 6 5 B 1.75TYP 6.20 5.80 PIN #1 4.00 3.80 4 2 3 1 3.85 7.35 1.27 0.25 C B A 1.27 (0.33) TOP VIEW LAND PATTERN RECOMMENDATION SEE DETAIL A 0.25 0.10 0.25 0.19 C 1.75 MAX OPTION A - BEVEL EDGE 0.51 0.33 FRONT VIEW 0.10 C OPTION B - NO BEVEL EDGE 0.50 x 45° 0.25 R0.10 NOTES: GAGE PLANE R0.10 0.36 A) THIS PACKAGE DOES NOT FULLY CONFORMS TO JEDEC MS-012 VARIATION AA. B) ALL DIMENSIONS ARE IN MILLIMETERS. 8° 0° 0.90 0.406 SEATING PLANE (1.04) C) DIMENSIONS DO NOT INCLUDE MOLD FLASH OR BURRS. D) DRAWING FILENAME : M07Brev3 DETAIL A SCALE: 2:1 Figure 28. 7-Lead, Small-Outline Integrated Circuit (SOIC), JEDEC MS-012, .150-Inch Narrow Body Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2012 Fairchild Semiconductor Corporation FLS0116 • Rev. 1.0.2 www.fairchildsemi.com 12 FLS0116 — MOSFET Integrated Smart LED Lamp Driver IC with PFC Function Physical Dimensions FLS0116 — MOSFET Integrated Smart LED Lamp Driver IC with PFC Function © 2012 Fairchild Semiconductor Corporation FLS0116 • Rev. 1.0.2 www.fairchildsemi.com 13