重要元器件选型推荐

1、ApplicationsSystem Power Rail Voltage conversion,Battery Powered Portable devicesmetering market (gas and water)Building controls (HVAC, communicatiogeneral purpose POL regulatorprofessional handheld/PDAsBenefitsReduces battery current and extends application run-timeDisconnects additional circuitry

2、 during shut-down or sleep modeAllows to reduce leackage currents during shut downMaintains an accurate output voltage through a fast AC line and load transient response and a seamless transition into Power Save ModeSupports a total solution size of 31mm2 and allows selection of cost efficient compo

3、nentsProvides design flexibility and active system communicationFeatures360nA quiescent current and up to 95% efficiencyIntegrated Load Switch4-pin voltage selectDCS-Control? topologyAvailable in a 3x2 SON package and works with small inductor and low ESR capacitorsA Power Good Output plus Capacitor

4、 Discharge FunctionalityTPS62740Enabling the next wave of low power regulationHow low can you go?TPS62740Market trendsIndustrial and beyondCutting the CordFaster time to marketConsumer, industrial, medical and automotive Higher capacity batteries, new chemistriesIncreased battery back-up for non-por

5、table applicationsDevelopment times are shorter for designersDevelopment tools need to be operational in minutes not hoursWireless charging, energy harvesting to avoid “Dead Battery Anxiety”Adoption continues to growLowest power applications Hard to ReachConvenienceWearableEnvironmental AwarenessPip

6、elinesOil RigSmoke DetectorsDesigns with low data rate, low duty cycle, ultra-low powerImplantablesHomeIndustrialExtended battery lifeMeteringCustomers wantLow BOM count to:Reduce BOM costIncrease reliability (MTBF)Either reduce application form factor or add more features to a given form factorIncr

7、ease manufacturing throughput (finished goods per day)Increase system efficiencyHigh efficiency across full load range:Reduces power consumption, meets official regulations like Energy Star, European lawReduces operating temperature, increases system reliability (MTBF)Extends application run time, i

8、n (backup-) battery operated systemsUse synchronous rectification(avoids external diode)Low system cost through:Less components (low BOM count):No external diode (want a synchronous converter)Integrated compensation networkLess output capacitanceNo boot capacitorSimple devices like ceramic capsPhysi

9、cally smaller external components(all 3 dimensions), e.g. inductorHigh (long term) reliability (= high MTBF):Through low component countThrough low operating temperature(devices and so entire system)System-level approach to power is requiredCHALLENGEWHAT IS NEEDEDPower is criticalThe lowest power so

10、lutions for any applicationTI DELIVERSHarvesting power and stretching battery lifeThermalRF LightVibrationTechnology for billions of battery- or harvested-powered devicesPower management & precision analog ICsLow-power microcontrollersMSP430MCUsTivaC SeriesMCUsLow-power wireless connectivityWi-FiBlu

11、etoothZigBeeSub-1 GHzTPS62740: Ultra-low power DC/DCLowest power buck converter for 300-mA designs360nA quiescent current lq during active operation, 70nA during standby 90% efficiency down to 10 uASmallest size:Integrated load switchtotal solution size of 31mm2Programmable output voltage, DCS-Contr

12、ol feature powers MCUs, LPRF (CC254x)Ultra-low power applicationsBluetooth Low Energy, ZigbeeIndustrial metering/sensorsEnergy harvestingTPS62740360-nA Iq step down converter for ultra low power applicationsTPS62740EVM-186BenefitsFeaturesApplicationsBluetooth Low Energy, RF4CE, ZigbeeIndustrial Mete

13、ringBuilding and HVAC controlProfessional PDAsWearable consumer and medicalEnergy HarvestingVIN range 2.2V to 5.5V300mA output currentOutput Version:TPS62740: 1.8V - 3.3VTPS62741: 1.3V 2.8VReduces battery current and extends application run-timeDisconnects additional circuitry during shut-down or sl

14、eep modeProvides design flexibility, reduces leakage currents during shut downMaintains an accurate output voltage at fast AC line and load transients plus a seamless transition between PWM and power save modeSupports a total solution size of 31mm2 (8mm2 for TPS82670); allows selection of cost effic

15、ient componentsProvides design flexibility and active system communication360nA quiescent current, up to 95% efficiencySleep rate controlled, integrated Load Switch16 pin selectable voltages(100mV increments)RF friendly DCS-Control TopologyAvailable in a 3x2 SON package, works with small inductor an

16、d low ESR capacitorsPower Good Output plus Capacitor DischargeEfficiency TPS627403V to 2.5V 10uA IOUT: 90% efficiencyEfficiency TPS627403V to 1.8V 10uA IOUT: 90% efficiencyEfficiently powering MCUs and connectivityUse Power Down Signal of CC2540 to control power up / down of other system componentsR

17、educe leakage current consumption of temporarily used componentsEfficiently powering MCUs and connectivityMaster MCU can control power up / down of other system componentsReduce leakage current consumption of temporarily used componentsMajor Target Applications: ExamplesMetering, HVAC,Wireless Senso

18、rsCustomers:Siemens, Fanuc, Schneider, Rockwell, ABB, Itron, Landis & Gyr, Johnson Controls, Honeywell Application: Thermostats, Gas & Water meter, SensorsWearable / MedicalCustomers:Philips, GE, Abbott, Johnson & Johnson, Masimo, Nike, Garmin, JawboneApplication: VRs in the 2nd power stageProfessio

19、nal HandheldCustomers:Motorola Solutions, Datalogic, Intermec,Application:PDA, barcode reader, POS, instrumentationTargeting applications requiering a highly efficient solution at a very small solution size while achieving a high output voltage accuracy at good overall total BOM cost.Major benefit i

20、s in reducing battery current to either achieve a required run-time or reduce battery capacity for a given run-time.Competition LandscapeElectrical Specification for TPS62740Conclusion:TPS62740 provides the highest design flexibility and lowest system power consumptionTPS62740 provides the highest c

21、urrent densityCompetition LandscapeSolution Size / Feature for TPS62740Conclusion:TPS62740 allows a very small solution footprint with a minimum of externally required components while providing a high design flexibilityThe Ease Of UseMicroSiP module for ultra space limited applicationsTPS82740: Mic

22、roSiP package optionTPS62740 Integrated in MicroSiP Module:IC:step-down converter with 360nA quiescent current4-pin adjustable output voltage (100mV steps)Integrated load switchPassive components: all L & CSize: 2.6mm x 2.9mm x 1mmRTP 1Q14System Block DiagramsDesign ToolsTechnical TrainingReference

23、Designs / Application NotesTools to speed design time29 Reference Designs at “Getting Started” Web page with FAQs, videos and development tools. Available in English, Chinese and Japanese73 applicationsPatient MonitoringGas MeterBar Code ScannerHVACRetail AutomationBuilding TechnologiesWeigh ScaleIP

24、 PhoneSolarRadarWearablesWeBenchModify design criteria and observe effectsGet complete BOMEvaluation Board“Solar Dice Demo” Designed for Tech Days and Seminars: Ask your TI sales representative for availability in your regionTPS62740EVM-186DCS-Control architecture overview Energy Harvesting: Solar D

25、ice DemoTPS62740 + CC430F5147DC-DC TPS62740 spec digest:Super low quiescent current: 360nASlew Rate Controlled Load Switch16 Pin-selectable output voltagesbetween 1.8V 3.3VThe dice transmits wirelessly its position and so the result to a computer. Energy is harvested from 6 solar panels (Sanyo 4.9V,

26、 one on each side) and the position is determined by an acceleration sensor.MCU CC430F5147 features digest:Transmission frequency 868MHz IMS and bandwidth 250kBpsFilter BW 541kHz, 36bit data, 16bit CRCRF Protocol length 50Byte total, RF Power level -1dBmSoftware optimized protocol to reduce current

27、consumptionThe PortfolioCheat Sheet: Naming OverviewLow Power DC-DC convertersTPS60. Switched Capacitor ConvertersTPS61. Inductor based Boost ConvertersTPS62. Inductor based Step-Down ConvertersTPS63. Buck-Boost ConvertersTLV61 Value Line Inductor based Boost ConvertersTLV62 Value Line Inductor base

28、d Step-Down ConvertersTPS81 Modules: Fully Integrated (L&C) Boost ConvertersTPS82 Modules: Fully Integrated (L&C) Step-Down ConvertersTPS83 Modules: Fully Integrated (L&C) Buck-Boost ConvertersLow-power DCDC industrial overviewVin up to 17VTPS62175 (28Vin)TPS62170TPS62150TPS62160TPS62140TPS62130Vin

29、up to 6VTPS62240 (300mA)TPS62230 (500mA)TPS62260 (600mA)TPS62080TPS62065TPS62090TPS62085Ultra-low IqTPS62125 (17Vin)TPS62120 (15Vin)TPS62740 (5.5Vin)Vin up to 5.5VTPS63036TPS63050TPS63010TPS63000TPS63020Vin up to 12VTPS63060Vin up to 6VTPS61070/TPS61240TPS61040 (28Vout)TPS61020TPS61252TPS61085(18Vou

30、t)TPS61087(18Vout)TPS61030 TPS61230Vin up to 18VTPS61170(38Vout)TPS61175(38Vout)Ultra-low IqTPS61220TPS61291TPS61251BuckTPS82670TPS82693TPS82740TPS82681TPS82661BoostTPS81256Buck-BoostTPS83051Currents0.9A1A2A3A4ABUCKBUCK-BOOSTBOOSTModuleMicroSIP:industrys only modules with integrated caps and inducto

31、rs!New products in red, Preview products in blue.X-axis: Buck: output current. Buck-boost; boost: switch current limitApplications移动电话Lower Power Handheld DevicesApplications that use a PMUBenefitsMaximum safety protection for battery and systemReduces BOM and solution sizeOver voltage protection fo

32、r downstream devicesSafe with car adapters and high input transientsPrevents inrush current and voltage spikesFeaturesProvides protection for three variables: 1.Input over-voltage 2.Input over-current 3.Battery over-voltageIntegrated charging FETLDO mode operation30V maximum input voltageSoft start

33、and soft stopSmall 2mm x 2mm 8pin DFN packageOver-Voltage and Over-Current Charger Front-End Protection IC With FET, 6.1BQ24350Features / BenefitsOptimized Dual NexFET MOSFETs - Delivers higher efficiency in a typical high current POL design1/2 the PCB area vs discrete 3x3 QFN MOSFETs - Improves pow

34、er densityUltra Low Qg & Qgd - Enables higher switching frequency C up to double frequency for same power loss vs comp - improved transient response for less output capacitors needed. Reduction in size by up to 1/2 for the output filter (caps & inductor)Unique ground pad leadframe and pinout - Simpl

35、ifies the customers layout and improves operating and thermal perfomanceSynchronous Buck NexFET Power Block MOSFET PairCSD86330Q3DTarget ApplicationsPOL Synchronous buck convetersend equip that uses 5V, 12V or 19VinApplications电机控制：无刷直流电机控制：永久磁性打印机Medical ApplicationsBenefitsMinimized board space an

36、d design time while maximizing performanceUltra Low Rdson FETs and thermally efficient package with thermal pad allows for maximum heat dissipation without external heat-sinksHigh linearity of output signals to guarantee precise and smooth operationAdvanced on-chip protection reduces design complexi

37、ty and enables higher system reliabilityClick here to view the Overview in PowerPoint.FeaturesThe highest power heatsink-less drive on the market - Supply Voltage up to 52V (50V +/- 5%) - Output Current 3.5A RMS/6.5A Peak (10ms)Advanced architecture with high efficiency up to 97% - PWM operation fre

38、quency up to 500kHz - Low Rdson MOSFETs (110mohm)Intelligent gate drive and cross conduction prevention - Short dead time (5ns) - Spike voltage control to reduce overshootIntegrated Protection Features - Programmable CBC current limit - Two stage thermal protectionPower Point Overview3-Phase PWM Mot

39、or Driver with Cycle-by-Cycle Overcurrent ProtectionDRV8312Motor Drive Business UnitTIs Motor DriversSupport up to 60V/60A Stepper Drivers 1.8V to 60V; Up to 12A Indexers / high count microstepping Stall Detect / Advanced current control Pre-drivers & drivers (w/ integrated FETS)Brushed DC Drivers 1

40、.8V to 60V; Up to 24A Inrush current protection Pre-drivers & drivers (w/ integrated FETs) 3-Phase BrushlessDrivers 1.65 to 60V; Up to 13A Integrated current sense amps / buck On-chip commutation (sensored and sensorless) Pre-drivers & drivers (w/ integrated FETs)Open Loop Control Reliability & Effi

41、ciency Simplicity & Low CostTIs Motor Driver FeaturesEmbedded Intelligence Minimal MCU support required Basic to advanced commutation engines Sensored and sensorless support Digital control loops Robust, Reliable & Fully Protected Over current / Short circuit protection Thermal protection Under volt

42、age lock out Shoot-through protectionFullyIntegrated Solutions Reduced Board Space / BOM Improved Reliability No discrete design experience needed. Just drop in and spin.DRV83123-Phase PWM Motor Driver with Cycle-by-Cycle Overcurrent Protection The highest power heatsink-less drive on the marketSupp

43、ly Voltage up to 52V (50V +/- 5%)Output Current 3.5A RMS / 6.5A Peak (10ms)Advanced architecture with high efficiency up to 97%PWM operation frequency up to 500kHzLow Rdson MOSFETs (110mohm)Intelligent gate drive and cross conduction preventionShort dead time (5ns)Spike voltage control to reduce ove

44、rshootIntegrated Protection Features Short circuit and cycle-by-cycle current protectionTwo stage thermal protectionNo External Snubber or Schottky Diode requiredMinimized board space and design time while maximizing performanceUltra Low Rdson FETs and thermally efficient package with thermal pad al

45、lows for maximum heat dissipation without external heat-sinksHigh linearity of output signals to guarantee precise and smooth operationAdvanced on-chip protection reduces design complexity and enables higher system reliabilityBrushless DC MotorsPermanent magnet synchronous motors14 x 8.1mm, 44-pin T

46、SSOP, package (PP)OTWController0 to 52VFaultPWM Inputs+12VMEVM Details/3.5A RMSRoadmapApplicationsFeaturesBenefitsDRV8312Motor Driver1K Pricing: $3.30In Production No External Schottkys DRV8312: 3-Phase PWM Motor DriverOperation up to 52VCBC Overcurrent, 2-stage Thermal, and UVP Protection 3x Independent Half Bridges3.5A Continuous 6.5A Peak (10ms)ControllerDRV8312Up to 97% Efficiency (110m FETS) RoadmapNewNewSolenoid / Relay Drivers(High Side or Low Side Switching)Selection MatrixQuad DriversDual DriversSynchronous Rectifi