BENCHMarks ™ New Products, Tips and Tools for Power and Mobile Applications VOL. 2, 2012 Ultra Small Battery and Load Switching Solutions Advantages • Saves board space with MicroFET package • Low profile package • Guaranteed low RDS(ON) at 4.5V/2.5V/1.8V VGS • Excellent thermal performance Offering designers a small-sized battery or load switching solution, with excellent thermal characteristics, two new single P-Channel PowerTrench® MOSFETs are now available. Fairchild’s FDMA905P and FDME905PT feature low on-state resistance in a low profile MicroFET™ package (0.8mm and 0.55mm max, respectively). The devices offer exceptional thermal performance for their physical size, and are also well-suited for linear mode applications. Applications • Handsets • Ultraportable devices For more information, please visit: www.fairchildsemi.com/pf/FD/FDMA905P.html www.fairchildsemi.com/pf/FD/FDME905PT.html Product Number RDS(ON) (mΩ) Typ Qg Typ (nC) @ VGS = 4.5V ID (A) PD (W) Package 21 21 10 2.4 2.0mm x 2.0mm x 0.8mm 28 14 8 2.1 1.6mm x 1.6mm x 0.55mm BVDSS (V) VGS (V) VGS (th) (V) Typ 4.5V 2.5V 1.8V FDMA905P 12 ±8 0.7 14 17 FDME905PT 12 ±8 0.7 18 22 SINGLE-STAGE PFC PRIMARY SIDE REGULATION LED DRIVERS Advantages Simplify Design Complexity in LED Lighting Applications • Minimizes BOM for smaller lamp size Implementing dimming capabilities in a conventional TRIAC dimmer infrastructure is challenging because of compatibility issues. Additionally, small space requirements remain a consideration in ≤20W LED lighting applications. To address these obstacles, Fairchild developed the FL7730 single-stage primary side regulation (PSR) controller with power factor correction (PFC), TRIAC and analog dimming compatibility, as well as the FL7732 for non-dimmable applications. • Accurate Constant Current (CC) control, independent online voltage, output voltage and magnetizing inductance variation To improve power factor (≥0.9) and THD (Class-C), both devices feature constant on-time control with an internal error amplifier and low bandwidth compensator. Precise Constant Current accuracy/control (±5%) regulates accurate output current, independent of input and output voltage, allowing designers to achieve high and improved lighting quality. • Excellent PF (≥0.9) • Low THD (Class-C) • Power efficiency ≥85% • Linear frequency control for better efficiency and simple design • Open-LED protection • Short-LED protection TRIAC DIMMER BRIDGE DIODE TRANS LINE INPUT FUSE Applications FL7730 4 5 7 3 • LED lighting For more information, please visit: VDD GATE DIM GND COMI VS GND CS 2 8 6 1 Typical Application Diagram of FL7730 (Dimmable) www.fairchildsemi.com/applications/diagrams/ led-lighting.html www.fairchildsemi.com/pf/FL/FL7730.html BRIDGE DIODE TRANS www.fairchildsemi.com/pf/FL/FL7732.html LINE INPUT Evaluation Boards FUSE LED lighting application evaluation boards are available at 4 5 7 3 www.fairchildsemi.com/products/evaluationboards/. Latest available board: FEBFL7701_L30U003A: 2.4W LED ballast board with FL7701, non-isolation, PFC Buck controller. FL7732 VDD GATE DIM GND COMI VS GND CS 2 8 6 1 Typical Application Diagram of FL7732 (Non-Dimmable) Product Number Topology PFC Dimming CC Variance (%) Internal MOSFET Package FL7730 PSR PFC Flyback Yes Yes 5 No SOIC-8 FL7732 PSR PFC Flyback Yes No 5 No SOIC-8 CLASS-D AUDIO AMPLIFIER Advantages • Low EMI design allows filterless operation • High noise rejection using differential audio inputs • High efficiency boost regulator provides higher output power over battery voltages Achieve Loud and Clear Sound While Extending Battery Life Customer demand is driving the need for louder and clearer speaker sound in mobile devices. While minimizing impact on battery life, designers can achieve the performance they require with Fairchild’s FAB3103. The 2.3W Class-D audio amplifier with integrated boost regulator and battery automatic gain control (AGC) allows for high audio output power over a power supply range of 2.5V to 5.2V from a 3.6V Li-Ion battery. • Boost shutdown at lower output power increases efficiency and reduces quiescent current consumption At low power output, the device’s boost regulator automatically shuts down for greater efficiency and lower quiescent current consumption, resulting in longer battery runtime. The FAB3103 audio amplifier also features battery AGC that reduces gain when the power supply voltage is low in order to limit maximum power consumption, reducing distortion and preventing early device software shutdown. • AGC monitors battery voltage and dynamically adjusts gain, extending battery runtime Available in a 12-bump, WLCSP, the FAB3103 device also offers several protection features including short circuit protection, low voltage shutdown, and click-and-pop suppression. L SW 2.2μH BATTERY VBATT • Mobile handsets • Smart phones • Tablets • Multimedia Internet devices (MID) 10 f = 1KHz C VBATT 10μF Boost Regulator 1 PVDD C VREG 22μF EN C INP 1μF VBATT=4.8V VBATT=4.2V VBATT=3.6V VBATT=2.8V SW Class-D Amplifier IN+ OUT+ IN- OUT- C INN 1μF AGCT THD+N (%) Applications 0.1 BATTERY 0.01 0.001 0.01 • Portable media players Typical Application Circuit Product Number FAB3103 Supply Voltage (V) 2.5 to 5.2 1 10 Total Harmonic Distortion + Noise vs. Output Power For more information, please visit: www.fairchildsemi.com/pf/FA/FAB3103.html 0.1 Output Power (W) Output Power at 10% THD+N Output Power at 1% THD+N THD+N at 0.1W 3.6V, 8Ω (W) 3.6V, 8Ω (W) 3.6V, 8Ω (%) Speaker Amplifier Integrated Boost Converter 2.3 1.85 0.01 Filterless Class-D Class-G Features Package (mm x mm) 12-WLCSP, 1.86 x 1.44 AUDIO JACK DETECTION SWITCH Advantages • Detects two different audio jack configurations • Enables use of all existing headsets in new devices without manual configuration • Automatically routes GND and MIC to audio jack terminals • Ability to detect 3- or 4-pole audio accessories Meet Audio Standards with a Single Device Designers no longer have to choose supporting one audio jack configuration standard (OMTP or CTIA) over the other, or rely on a more complex design with additional components. Fairchild's FSA8049 MIC/GND cross point switch detects two different audio jack configurations and connects properly to each standard, enabling the use of all existing headsets in new devices without manual configuration. This functionality allows the end-user to plug accessories, such as headsets, with different audio pole configurations into the device and have them operate correctly. The FSA8049 is available in a space-saving 9-ball WLCSP 1.16mm x 1.16mm package. • Mobile handsets AUDIO JACK GPIO Applications TO AUDIO PLUG DETECTION CIRCUIT VDD Baseband Processor EN CEXT Audio Sub System OSCILLATOR & LOGIC DETECTION LSPKR RSPKR SWITCH ENABLE TIMING 3POLE 4POLE MIC Bias R MIC • Smart phones MIC C MIC • Tablets MIC/GND1 MIC MIC/GND2 5Ω tOn/Off Capacitor • Laptops 100mΩ GND • PMP/MP3 For more information, please visit: Typical Application Diagram of Mobile Phone Audio Jack with FSA8049 www.fairchildsemi.com/pf/FS/FSA8049.html Product Number FSA8049 Detection VDD (V) THD (MIC) RON(GNDA) ESD (IEC 61000-4-2) Package Audio Plug, GND & MIC Polarity 2.5 to 4.4 0.002% 80mΩ 15kV (Air Gap), 8kV (Contact) 1.16mm x 1.16mm 9 ball WLCSP MicroDip BRIDGE RECTIFIER FAMILY Advantages • Low package profile, 1.45mm (max) • Requires only 35mm2 of board space • High surge current capability: 30A (max) • Glass passivated junction rectifiers Low Package Height, Critical for Small Space Designs Now designers can reduce space and simplify board layout with Fairchild’s new series of MicroDIP bridge rectifiers. With the ability to increase reliability and lower overall manufacturing costs, the series provides one of the lowest package heights for 1A bridge rectifiers. The MDBxS family meets the need for small space design solutions critical for mobile device battery chargers, power adapters and Power-over-Ethernet (PoE) devices including IP surveillance cameras. The family currently consists of three parts—MDB6S (600V), MDB8S (800V) and MDB10S (1000V), with 50V – 400V versions in development. • UL certification: E352360 Applications • Mobile device battery chargers • Power adapters • Power-over-Ethernet (PoE) devices • IP surveillance cameras For more information, please visit: www.fairchildsemi.com/pf/MD/MDB6S.html www.fairchildsemi.com/pf/MD/MDB8S.html www.fairchildsemi.com/pf/MD/MDB10S.html MDBxS Family of Low Profile 1A Bridge Rectifiers Product Number VRRM (V) VRMS (V) IF(ave) (A) IFSM (A) VFM (V) IRM (µA) RJA (°C/W) MDB6S 600 420 1 30 1.1 10 250 MDB8S 800 560 1 30 1.1 10 250 1000 700 1 30 1.1 10 250 MDB10S SURFACE MOUNT PACKAGE SCHOTTKY RECTIFIER Advantages • Low profile, surface mount package: SMB/DO-214AA • High reverse voltage: VRRM = 200V • Low power loss, high efficiency • High surge current: IFSM = 80A Schottky Rectifier Offers High Reverse Voltage and Smaller Surface Mount Packages Designers of power supplies for industrial, wireless infrastructure and alternative energy systems no longer have to trade off between a high reverse voltage and a small surface mount package when choosing a rectifier. The S320 Schottky rectifier offers both a maximum repetitive peak reverse voltage of 200V and a low profile, industry-standard, mini surface mount package (SMB/DO-214AA). With a maximum forward voltage of 0.9V, the S320 has lower power loss than similar standard silicon rectifiers resulting in a higher overall power efficiency of the power supply. In addition, the S320 has a wide operating temperature range of -65ºC to +150ºC. The S320 is just the latest addition to Fairchild’s broad portfolio of Schottky rectifiers. Applications • Polarity protection Package Size • Power supplies •Output rectification •Flyback/Free-wheeling diode S310 S320 For more information, please visit: www.fairchildsemi.com/pf/S3/S320.html 200 100 VRRM (V) Twice the Performance in a Smaller Package Product Number S320 VRRM (V) IF(ave) (A) IFSM (A) VFM (mV) RJA (°C/W) IRM (µA) Package 200 3 80 0.9 160 7 SMB ENGINEERING CONNECTIONS New Semiconductor Solutions Meet the Challenges of Efficient and Effective Generation of Renewable Power The following article is an abridged version with sections from Fairchild’s backgrounder on solutions for the generation of renewable power. Challenges Facing Solar Power Generation Higher cell efficiency, lower system costs, reliability and geopolitical systems all pose challenges to this market’s growth. The cost of a solar electric system is represented as dollar/watt. The current cost of a utility based solar electric system is $3.3/W (Source: DOE). Government programs are funding research to help drive down the cost to $1/W to help this market expansion. The different cost components that make up this system cost are provided in figure below. The panels represent more than 50% of the system cost; the balance of system (BOS) represents 43% and solar inverters represent 6%. In order to reach the aggressive $1/W target, advancement in all PV system components is compulsory. Power electronics, while a small portion of the total cost, will drive harvesting efficiency and therefore is critical. Reaching Cost Reduction Targets will require advances in all PV system components Energy Efficiency & Renewable Energy Utility System with $1/W Goal $3.50 $3.40 $0.22 Power Electronics $3.00 $2.50 BOS/Installation $1.48 $0.97 $1.50 $1.00 $0.18 $1.70 $1.05 $0.50 $0.0 Module $0.18 $2.00 $1.00 $2.20 $0.97 $0.50 2010 2016 $1/Watt Component Choices for Efficient, Cost-Effective and Reliable Implementations Regardless of which topology is used, designers must make careful choices when selecting the individual components. The necessary improvements in performance, cost, reliability and efficiency require special attention to the following factors and their ultimate impact on the overall system: Component count: cost, size, total power dissipation, reliability Heat/thermal management: reliability, size/weight, cost Minimization of losses and parasitics: system performance, total power dissipation Fairchild is committed to the development of components that will help designers implement systems optimized for these three important factors. Key building blocks for future harvesting and conversion implementations include: • IGBTs, and high- and mid-voltage MOSFETs (high-voltage includes SuperFET®, SuperFET® II and SupreMOS® MOSFETs; mid-voltage MOSFETs incorporate PowerTrench® technology). These products feature high current handling capability and low conduction and switching loss. • Gate drivers, with a wide range of options that include optically isolated; high-speed low side; and high-voltage. • Bypass and blocking diodes that maximize energy prevent energy loss in storage systems. Panel manufacturers have made significant progress in cost reductions through new manufacturing processes and improvements in the conversion efficiencies of the solar cells. As the panel costs drop further in the future, the BOS and Solar Inverter costs will become a dominant part of the total system cost. • High-voltage silicon carbide (SiC) devices that offer significant improvement on both cost and efficiency in energy conversion systems as well as higher reliability. Engineering Connections offers blogs, videos, online seminars and podcasts that help designers solve their design challenges and speed timeto-market. Get the latest information at www.fairchildsemi.com/engineeringconnections. To obtain the complete backgrounder that includes the discussion on Fairchild solutions, converter topologies and complementary renewable technologies visit www.fairchildsemi.com/applications/solar-inverter/index.html for a complete listing of sales representatives and sales offices, visit: www.fairchildsemi.com/cf/sales_contacts for information on fairchild products, tradeshows, seminars and other items, register here: www.fairchildsemi.com/my_fairchild For datasheets, application notes, samples and more, please visit: www.fairchildsemi.com PRODUCTS Power Management Power Factor Correction • Continuous Conduction Mode (CCM) PFC Controllers • Critical/Boundary Conduction Mode (CrCM/BCM) PFC Controllers • Interleaved PFC Controllers • PFC + PWM Combination (Combo) Controllers Off-Line and Isolated DC-DC • AC-DC Linear Regulators • Flyback & Forward PWM Controllers • Flyback & Forward PWM Controllers with Integrated MOSFET • LLC Resonant & Asymmetric Half Bridge PWM Controllers • LLC Resonant & Asymmetric Half Bridge PWM Controllers with Integrated MOSFETs • Primary-Side Regulation CV/CC Controllers • Primary-Side Regulation CV/CC Controllers with Integrated MOSFET • Standard PWM Controllers • Supervisory/Monitor ICs • Synchronous Rectifier Controllers Non-Isolated DC-DC • Charge-pump Converters • DrMOS FET plus Driver Multi-Chip Modules • Step-down Controllers (External Switch) • Step-down Regulators, Non-Synchronous (Integrated Switch) • Step-down Regulators, Synchronous (Integrated Switch) • Step-up Regulators (Integrated Switch) MOSFET and IGBT Gate Drivers • 3-Phase Drivers • Half-Bridge Drivers • High- & Low-Side Drivers • High-Side Drivers • Low-Side Drivers Voltage Regulators •LDOs • Positive Voltage Linear Regulators • Negative Voltage Linear Regulators • Shunt Regulators • Voltage Detector • Voltage Stabilizer • Voltage to Frequency Converter APPLICATIONS DESIGN SUPPORT ABOUT FAIRCHILD Motion Control • BLDC/PMSM Controller •Motion-SPM™ (Smart Power Modules) • PFC SPM® (Smart Power Modules) Interface • LVDS • Serializers/Deserializers (µSerDes™) • USB Transceivers Diodes & Rectifiers • Bridge Rectifiers • Circuit Protection & Transient Voltage Suppressors (TVS) •Diacs •Rectifiers • Schottky Diodes & Rectifiers • Small Signal Diodes • Zener Diodes Signal Conditioning • Video Filter Drivers • Video Switch Matrix/Multiplexers IGBTs • Discrete IGBTs • Ignition IGBTs MOSFETs • Discrete MOSFETs • Level-Shifted Load Switches • MOSFET/Schottky Combos Transistors •BJTs •Darlingtons • Digital/Bias-Resistor Transistors •JFETs • RF Transistors • Small Signal Transistors Advanced Load Switches • Advanced Current Limited Load Switches • Slew Rate Controlled Load Switches Battery Management • Battery Charger ICs • Current Sensing Ground Fault Interupt Controllers • Ground Fault Interrupt (GFI) Controllers Backlight Unit (BLU) • CCFL Inverter ICs Signal Path ICs Amplifiers & Comparators • Comparators • Operational Amplifiers Audio Amplifiers • Audio Subsystems • Audio Headphone Amplifiers • Digital Microphone Amplifiers • Audio Speaker Amplifiers LIGHTING ICs • Fluorescent Lamp ICs • HID ICs • LED Lighting ICs • Portable LED Drivers Signaling, Sensing & Timing • Signaling, Sensing & Timing • Timing Switches • Accessory Switches • Analog Switches • Audio Jack Detection Switches • Audio Switches • Bus Switches • MIPI Switches • Multi-media Switches • USB Switches • Video Switches Logic Buffers, Drivers, Transcievers • Buffers • Line Drivers • Transceivers Flip Flops, Latches, Registers • Counters • Flip Flops • Inverters • Latches • Registers Gates • AND Gates • NAND Gates • OR Gates • NOR Gates • Schmitt Triggers • Configurable Gates Multiplexer/Demultiplexer/ Decoders • Decoders • Demultiplexers • Multiplexers • Multivibrators Optoelectronics High Performance Optocouplers • Low Voltage, High Performance • High Speed Logic Gate • High Performance Transistor • IGBT/MOSFET Gate Driver • Specific Function Infrared • Emitting Diodes • Photo Sensors • Photo Sensor – Transistors • Ambient Light Sensors • Reflective Sensors • Optical Interrupt Switches Phototransistor Optocouplers • Isolated Error Amplifier • Phototransistor Output DC Sensing Input • Phototransistor Output AC Sensing Input • Photo Darlington Output TRIAC Driver Optocouplers • Random Phase TRIAC Driver • Zero Crossing TRIAC Driver AUTOMOTIVE PRODUCTS Automotive Discrete Power • Automotive Ignition IGBTs • Automotive IGBTs • Automotive N-Channel MOSFETs • Automotive P-Channel MOSFETs • Automotive Rectifiers Automotive High Voltage Gate Drivers (HVICs) • Automotive High Voltage Gate Drivers (HVICs) High Side Smart Switches • High Side Smart Switches Voltage Level Translators • Voltage Level Translators Battery Protection ICs • Battery Protection ICs Trademarks, service marks, and registered trademarks are the property of Fairchild Semiconductor or their respective owners. For a listing of Fairchild Semiconductor trademarks and related information, please see: www.fairchildsemi.com/legal Lit code: 970043-001 © 2012 Fairchild Semiconductor. All Rights Reserved. Solutions for Your Success™