ST’s Solutions for LED General Illumination ST LED Lighting Solutions Low Power (<15w) Medium Power (15w~75w) Demo High Power (>75w) Design Software HVLED8XX Controller + MOSFET • Embedded with 800V MOSFET • Primary Regulation CC and CV HVLED815PF • HPF and Low THD HVLED807PF RDSON 6 Ohm HVLED805 RDSON 11 Ohm RDSON 11 Ohm Eval Boards Evaluation boards (1/2) for analog solutions up to 15W EVLHVLED815W8CV 8W HPF Flyback primary side CV based on HVLED815PF Vin = 200-265 Vac Vout=25V, Iout=310mA Efficiency >86% Power Factor >0.98 THD <20% STEVAL-ILL045V1 9W HPF Buck-Boost Triac dimmable solution based on HVLED815PF Vin = 90-132 Vac Iled=175mA Efficiency >86% Power Factor >0.98 THD <20% STEVAL-ILL044V1 9W HPF Flyback Triac dimmable solution based on HVLED815PF Vin = 90-132 Vac Iled=175mA Efficiency >86% Power Factor >0.98 THD <20% AN4350 AN4130 AN4129 Available Dimmable HPF Flyback Controller Current Primary side controlled Dimmable: Triac/0-10/PWM Very High PF & Very Low THD Es Q1 2016 HVLED005 High Power Factor Flyback Controller Voltage Primary side controlled High Voltage components Integrated Dimmable: 0-10 and PWM High PF & Low THD HVLED003 HVLED001 HVLED Controllers: HVLED001/003/005 Full PSR HPF Flyback Controller Current Primary side controlled Dimmable: 0-10/PWM Very High PF & Very Low THD HV start up embedded Es Q2 2016 HVLED001 Constant voltage primary side flyback controller Key Features • Quasi Resonant Flyback (Peak Current Mode) • 800V HV startup & Multi fast start-up, high efficiency • Frequency fold-back for low-load dimming (0-10, PWM) • High Efficiency and output stability in wide voltage and current range • Primary side control of the output voltage • Full set of auto-restart protections • Overload • Short and Open Circuit • Opto-coupler failure • Input Overvoltage (Surge) & Undervoltage • Transformer/Inductor Saturation HVLED003 Triac dimmable constant current primary side flyback controller Key Features •Quasi Resonant Flyback (Peak Current Mode) •Primary sense current regulation (PSR) •± 3% accuracy on constant LED output current •TRIAC dimming compatible •PWM/0-10 dimming compatible •Very Low THD and High PF •Open or short Fault LED string management •Start-up and Self supply •Thermal protection HVLED003 Demo Board: Compatible with Triac Dimmer Active Bleeder & HV start-up Thermal Protection PF & CC loop Configuration mode programmability Active Bleeder management HVLED005 0-10v dimmable constant current primary side flyback controller Key Features •Quasi Resonant Flyback (Peak Current Mode) •Primary sense current regulation (PSR) •± 3% accuracy on constant LED output current •PWM/0-10 dimming compatible •800V HV startup & Mult: fast start-up, high efficiency •Very Low THD and High PF •Open or short Fault LED string management •Start-up and Self supply •Thermal protection Eval Boards VIN = 90 to 305 Vrms OUT=700 mA (VLED = 0 to 48 V) 0-10/PWM Dimming: 100% to 10% (any condition) Efficiency: > 90% @ full load No-load: better than 300 mW @ 230 VIN VIN = 90-305 Vrms Output voltage=48 V / 730 mA Full load efficiency: better than 90% No-load: better than 400 mW @ 230 Vin Short circuit protection with auto restart Improved THD for Single Stage Flyback: Issue • Current reference is proportional to Vin(θ) • Switch ON-time is constant along a line cycle • Peak primary current is sinusoidal, input current is not (uneven chopping effect: TON is constant, TSW(θ) is variable) I pkp (θ ) = I PKp sin θ T 1 I in (θ ) = I PKp sin θ ON 2 TSW (θ ) } Iin(θ) is NOT sinusoidal uneven chopping effect 20% 10% Kv=Vkp/Vr Improved THD for Single Stage Flyback: Solution Rectified input voltage Control voltage KP Transformer’s demag sensing To transformer’s primary winding ZCD gm VCt (θ) Multiplier (KM) Rt Q SW Ct t Vc Vc Ich(θ) Vin(θ) Delay TR Vcsref (θ) S R Q t Gate Driver Ich (θ) + Ip (t, θ)Vcsref (θ) t Ip(t,θ) Is(t,θ) t Vcs (t, θ) Rs Iin(θ) • Boxed block generates VCt(θ) with an appropriate predistortion so that cycle-by-cycle averaged primary current is sinusoidal. • Vc (control voltage of outer CV/CC loop) and multiplier adjust amplitude of VCt(θ), generating Vcsref(θ) . • Turn-on & turn-off conditions for SW are unchanged • Ct is an external component t 0 t • Key waveforms @ line cycle time-scale Improved THD for Single Stage Flyback: THD<10% for high line CS Vin = 230 Vac, Pout = 35 W, THD = 3.6% Digital Controller STLUX • The STLUX is a flexible digital platform with a full set of specific features and peripherals for AC/DC and DC/DC Power Conversion • Suitable for: • Digital Power Supply (DPS): PFC control, LLC, Asymmetrical Half Bridge, Fly-back, Full Bridge topologies and Buck/Boost single/multi channel synchronous rectification • SMART LIGHTING: LED, HID , Fluorescent applications - Dimming capability (PWM and/or LINEAR) and integration with sensors • Wireless Battery Chargers: STLUX handles energy transfer and communication – Qi, PMA & proprietary • Wired or wireless communications, simple installation in large indoor and outdoor area, reducing maintenance costs State Machine Event Driven Block • SIX configurable PWM State Machine Event Driven (SMED) 1.3ns resolution (with automatic dithering) – 10.4 native. • 4 Analog Comparators and 6 fast digital inputs synchronized with 96MHz clock • 8 channels 10 bit ADC with programmable op amp GAIN resolution, 2.4 µs conversion time, • -40 ºC to 105 ºC temperature range • TSSOP38 STLUX digital power converters are the right solution for digital power conversion applications. ST programmable SMED peripherals + Switch matrix and 8 bits ST core provide flexible and complete power management functionalities in a single IC. By providing high–speed PWMs (96MHz), dedicated 8ch ADCs with selectable gain, STLUX exploits system performance and reliability Block Diagram of STLUX385 • STM8 core based (up to 20 MIPS) Ext. 24MHz 96MHz PLL Clock Controlle r STM8 Core @ 16 MHz Nested IT Ctrl 12 GP I/Os Address & Data Bus 12 ext.IT SWIM SMED1 Voltage Reg. SMED2 32kB Flash Memory SMED3 2kB SRAM SMED5 SMED4 System Timer 1kB E2PROM 6 Digital Comparator s4 Analog ® DM/EMU SMED0 Reset POR/BOR system Comparator s 8channels 10bit ADC with gain WDG • 16-bit/8-bit and 16-bit/16-bit divisions • Faster 8-bit*8-bit multiplication, signed arithmetic operation • 6 software configurable State Machine Event Driven (SMED) and Connection Box for maximum flexibility AWU Address & Data Bus Int. RC 16MHz Int. RC 153.6kHz UART I²C • 4 Analog Comparators and 6 independent Digital comparators synchronized with 96 MHz clock DALI • Built-in DALI communication hardware Eval Board:100W LED Streetlight 100V (max. 1A) nVLED SMED3 Fast input DIGIN5 DALI UART Analog Comparator CPP2 Integrated Controller SMED0 10bit ADC with gain SMED1 Analog Comparator CPP0 SMED2 100 W (100V Vout @ 1A) Single string LED driver Primary side regulation (no opto-coupler needed) LC resonant Half Bridge, extremely high efficiency (> 90%) Accurate light regulation PWM digital dimming: >1kHz, 11bit (OPTIONAL) Communication: DALI, UART ctrl and 0-10V dimming Eval Board: Multi-String LED Driver L6562A T L6599T STEVAL-ILL057V1 STLUX385A 4 channel independently dimming (PWM and Analog) Input Voltage 12~48V, max output current 1A eDesign Suite – Power Conversion Simulation Tool The new, easy power management design tool tool •AC-DC Conversion •DC-DC Conversion •AC-DC LED Driving •DC-DC LED Driving www.st.com/edesignsuite Login on my.st.com (register yourself if not yet done) Complete, Interactive Schematic and BOM Screwdriver and Wrench icon: the user can refine sections of the schematic The user can customize some aspects of the design by interacting with the schematic The BOM window provides an effective user interface (table) for all the circuit components and their characteristics Evaluate the Performance of the Design Waveforms simulator Bode plots Loss distribution Efficiency Simulates key voltage and current waveforms, displays bode plots, power losses and efficiency analysis Transformer Design The user can customize the Flyback transformer Designs Are Portable Export the current design project for PSpice Simulation in OrCAD. Save your project to ST server/edesign suite My Projects folder. You can then open it from ANY machine.