new products, tips and tools for power and mobile applications benchmarks ? ultra small battery and load switching solutions offering designers a small-sized battery or load switching solution, with excellent thermal characteristics, two new single p-channel powertrench ? mosfets are now available. fairchilds fdma905p and FDME905PT feature low on-state resistance in a low profle 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. advantages ? saves board space with microfet package ? low profle package ? guaranteed low r ds(on) at 4.5v/2.5v/1.8v v gs ? excellent thermal performance applications ? handsets ? ultraportable devices for more information, please visit: www.fairchildsemi.com/pf/fd/fdma905p.html www.fairchildsemi.com/pf/fd/FDME905PT.html vol. 2, 2012 product number b vdss (v) v gs (v) v gs (th) (v) typ r ds(on) (m ) typ qg typ (nc) @ v gs = 4.5v i d (a) p d (w) package 4.5v 2.5v 1.8v fdma905p 12 8 0.7 14 17 21 21 10 2.4 2.0mm x 2.0mm x 0.8mm FDME905PT 12 8 0.7 18 22 28 14 8 2.1 1.6mm x 1.6mm x 0.55mm
single-stage pfc primary side regulation led drivers simplify design complexity in led lighting applications 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. to improve power factor (0.9) and thd (class-c), both devices feature constant on-time control with an internal error amplifer 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. advantages ? excellent pf (0.9) ? low thd (class-c) ? power effciency 85% ? minimizes bom for smaller lamp size ? accurate constant current (cc) control, independent online voltage, output voltage and magnetizing inductance variation ? linear frequency control for better effciency and simple design ? open-led protection ? short-led protection applications ? led lighting for more information, please visit: www.fairchildsemi.com/applications/diagrams/ led-lighting.html www.fairchildsemi.com/pf/fl/fl7730.html www.fairchildsemi.com/pf/fl/fl7732.html evaluation boards led lighting application evaluation boards are available at www.fairchildsemi.com/products/evaluationboards/. latest available board: febfl7701_l30u003a: 2.4w led ballast board with fl7701, non-isolation, pfc buck controller. tran s bridge diode triac dimmer comi di m gnd gnd vdd vs fl7730 ga te 1 3 6 5 8 7 2 4 fuse line input cs typical application diagram of fl7730 (dimmable) t r a n s br idg e dio de comi d i m gnd gnd vdd v s fl7 732 g a t e 1 3 6 5 8 7 2 4 f us e lin e i n put c s typical application diagram of fl7732 (non-dimmable) product number topology pfc dimming cc variance (%) internal mosfet package fl7730 psr pfc flyback ye s ye s 5 no soic-8 fl7732 psr pfc flyback ye s no 5 no soic-8
class-d audio amplifier 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 fairchilds 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. at low power output, the devices boost regulator automatically shuts down for greater effciency and lower quiescent current consumption, resulting in longer battery runtime. the fab3103 audio amplifer 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. 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. advantages ? low emi design allows flterless operation ? high noise rejection using differential audio inputs ? high effciency boost regulator provides higher output power over battery voltages ? boost shutdown at lower output power increases effciency and reduces quiescent current consumption ? agc monitors battery voltage and dynamically adjusts gain, extending battery runtime applications ? mobile handsets ? smart phones ? tablets ? multimedia internet devices (mid) ? portable media players for more information, please visit: www.fairchildsemi.com/pf/fa/fab3103.html product number supply voltage (v) output power at 10% thd+n output power at 1% thd+n thd+n at 0.1w features package (mm x mm) 3.6v, 8 (w) 3.6v, 8 (w) 3.6v, 8 (%) speaker amplifer integrated boost converter fab3103 2.5 to 5.2 2.3 1.85 0.01 filterless class-d class-g 12-wlcsp, 1.86 x 1.44 0.01 0 . 1 1 1 0 0.001 0.01 0.1 1 1 0 t hd+n (%) o u t put pow e r ( w ) vbatt= 4.8v vbatt= 4.2v vbatt= 3.6v vbatt= 2.8v f = 1kh z typical application circuit class-d amplifier out+ out- boost regulato r vbat t in+ in- c vbat t 10f batter y c in p 1f c in n 1f en sw c vre g 22 f l sw 2.2h agct pvdd batter y total harmonic distortion + noise vs. output power
meet audio standards with a single device audio jack detection switch advantages ? detects two different audio jack confgurations ? enables use of all existing headsets in new devices without manual confguration ? automatically routes gnd and mic to audio jack terminals ? ability to detect 3- or 4-pole audio accessories applications ? mobile handsets ? smart phones ? tablets ? laptops ? pmp/mp3 for more information, please visit: www.fairchildsemi.com/pf/fs/fsa8049.html designers no longer have to choose supporting one audio jack confguration 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 confgurations and connects properly to each standard, enabling the use of all existing headsets in new devices without manual confguration. this functionality allows the end-user to plug accessories, such as headsets, with different audio pole confgurations 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. mic mic/gnd 2 mic/gnd 1 v dd en cext lspkr rspkr 3pole 4pole to audio plug detection circuit audio sub system mic bias mic baseband processor gpio r mi c c mi c 5 t on /o ff capacitor gn d detectio n switch enable timing oscillator & logic 100m audio jack product number detection v dd (v) thd (mic) r on(gnda) esd (iec 61000-4-2) package fsa8049 audio plug, gnd & mic polarity 2.5 to 4.4 0.002% 80m 15kv (air gap), 8kv (contact) 1.16mm x 1.16mm 9 ball wlcsp typical application diagram of mobile phone audio jack with fsa8049
microdip bridge rectifier family low package height, critical for small space designs now designers can reduce space and simplify board layout with fairchilds new series of microdip bridge rectifers. with the ability to increase reliability and lower overall manufacturing costs, the series provides one of the lowest package heights for 1a bridge rectifers. 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 partsmdb6s (600v), mdb8s (800v) and mdb10s (1000v), with 50v C 400v versions in development. advantages ? low package profle, 1.45mm (max) ? requires only 35mm 2 of board space ? high surge current capability: 30a (max) ? glass passivated junction rectifers ? ul certifcation: 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 profle 1a bridge rectifers product number v rrm (v) v rms (v) i f(ave) (a) i fsm (a) v fm (v) i rm (a) r ja (c/w) mdb6s 600 420 1 30 1.1 10 250 mdb8s 800 560 1 30 1.1 10 250 mdb10s 1000 700 1 30 1.1 10 250
surface mount package schottky rectifier schottky rectifer offers high reverse voltage and smaller surface mount packages advantages ? low profle, surface mount package: smb/do-214aa ? high reverse voltage: v rrm = 200v ? low power loss, high effciency ? high surge current: i fsm = 80a applications ? power supplies ? output rectifcation ? flyback/free-wheeling diode ? polarity protection for more information, please visit: www.fairchildsemi.com/pf/s3/s320.html 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 rectifer. the s320 schottky rectifer offers both a maximum repetitive peak reverse voltage of 200v and a low profle, 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 rectifers resulting in a higher overall power effciency 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 fairchilds broad portfolio of schottky rectifers. package size 100 v rr m (v) 200 s320 s310 twice the performance in a smaller package product number v rrm (v) i f(ave) (a) i fsm (a) v fm (mv) r ja (c/w) i rm (a) package s320 200 3 80 0.9 160 7 smb
engineering connections challenges facing solar power generation higher cell efciency, lower system costs, reliability and geopolitical systems all pose challenges to this markets growth. te cost of a solar electric system is represented as dollar/watt. te 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. te diferent cost components that make up this system cost are provided in fgure below. te 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 efciency and therefore is critical. panel manufacturers have made signifcant progress in cost reductions through new manufacturing processes and improvements in the conversion efciencies 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. component choices for efcient, cost-efective and reliable implementations regardless of which topology is used, designers must make careful choices when selecting the individual components. te necessary improvements in performance, cost, reliability and efciency 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). tese 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. ? high-voltage silicon carbide (sic) devices that ofer signifcant improvement on both cost and efciency in energy conversion systems as well as higher reliability. 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 new semiconductor solutions meet the challenges of effcient and effective generation of renewable power 2010 $3.40 $3.50 $3.00 $2.50 $2.00 $1.50 $1.00 $0.50 $0.0 $0.22 $1.48 $1.70 $0.18 $0.97 $1.05 $0.18 $0.97 $0.50 $2.20 utility system with $1/w goal $1.00 2016 $1/w att power electronics bos/installation module ener gy ef ficiency & renewable energ y reaching cost reduction t argets will require advances in all pv system components te following article is an abridged version with sections from fairchilds backgrounder on solutions for the generation of renewable power. engineering connections offers blogs, videos, online seminars and podcasts that help designers solve their design challenges and speed time- to-market. get the latest information at www.fairchildsemi.com/engineeringconnections.
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 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. about fairchild design support products applications 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 rectifer 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 motion control ? bldc/pmsm controller ? motion-spm ? (smart power modules) ? pfc spm ? (smart power modules) diodes & rectifers ? bridge rectifers ? circuit protection & transient voltage suppressors (tvs) ? diacs ? rectifers ? schottky diodes & rectifers ? small signal diodes ? zener diodes 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 p ath ics amplifers & comparators ? comparators ? operational amplifers audio amplifers ? audio subsystems ? audio headphone amplifers ? digital microphone amplifers ? audio speaker amplifers battery protection ics ? battery protection ics interface ? lvds ? serializers/deserializers (serdes?) ? usb transceivers signal conditioning ? video filter drivers ? video switch matrix/multiplexers 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 ? confgurable gates multiplexer/demultiplexer/ decoders ? decoders ? demultiplexers ? multiplexers ? multivibrators voltage level translators ? voltage level translators lighting ics ? fluorescent lamp ics ? hid ics ? led lighting ics ? portable led drivers optoelectronics high performance optocouplers ? low voltage, high performance ? high speed logic gate ? high performance transistor ? igbt/mosfet gate driver ? specifc function infrared ? emitting diodes ? photo sensors ? photo sensor C transistors ? ambient light sensors ? refective sensors ? optical interrupt switches phototransistor optocouplers ? isolated error amplifer ? 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 rectifers automotive high voltage gate drivers (hvics) ? automotive high voltage gate drivers (hvics) high side smart switches ? high side smart switches solutions for y our success ?
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