Shikues‘ Control IC UC3845 Series is Specified for Operation from -30℃ to 85℃, Ideal for Offline Power Supplies and DC-DC Applications

时间： 2023-05-09 来源：Shikues News

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The UC3845 control IC provides the functions necessary to implement offline or DC-to-DC fixed frequency current mode control schemes with a minimum number of external components.

Internally implemented circuitry includes an undervoltage lockout (UVLO) characterized by a start-up current of less than 1 mA and a precision reference trimmed precisely at the error amplifier input.

Other internal circuitry includes logic to ensure latched operation, a pulse-width modulation (PWM) comparator to provide current-limit control, and a totem-pole output stage to source or sink peak currents. The output stage is low in the off-state and is suitable for driving n-channel MOSFETs. The UC3845 offers a variety of package options, temperature range options, maximum duty cycle options, turn-on and turn-off thresholds, and hysteresis range options.

Devices with higher turn-on or turn-off hysteresis are ideal for offline power supplies, while devices with narrower hysteresis ranges are suitable for DC-DC applications. The UC3845 series is specified for operation from -30℃ to 85℃.

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本文由上山打老虎转载自Shikues News，原文标题为:Ideal for offline power supplies UC3845，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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时科新品应用领域

时科公司提供多种元器件，包括肖特基二极管、场效应管、整流二极管、TVS保护管、低压差稳压器、GAN整合IC等。产品应用领域涵盖通信电源、大功率适配器、太阳能、PC电源、TV电源、大功率照明电源、充电桩、无人机、逆变器、电机驱动、激光脉冲电源、HID照明、PD电源、适配器、汽车电源、E-BIKE充电器、服务器电源模块、开关调节器、变压器耦合DC-DC转换器、蜂窝无线电、GPS接收机、DBS调谐器、PCN、天线、高频头、卫星电视调谐器、CATV放大器、模拟数字无绳电话、雷达感应探测器、无线安防报警器、射频模块、光纤模块、对讲机、振动器、天线、商用网络和服务器电源单元、多功能打印机、电源和移动充电器、电机控制、台式计算机和主板、室内外空调、洗衣机、烘干机、冰箱、UPS不间断电源等。产品参数包括反向耐压、正向电流、正向压降、封装等。

时科 - PWM控制器,电源基准IC,GAN整合IC,开关二极管,整流桥堆,双向可控硅,IGBT,低压MOS,整流二极管,TVS保护管,高压MOS,锂电池保护IC,SIC肖特基二极管,ESD保护管,宽带放大器,高频三极管,稳压二极管,三端稳压IC,可控硅,肖特基二极管,中压MOS,运算放大器,肖特基整流管,双极性晶体管,场效应管,低压差稳压器,SK02N06E,SK04N90B-TF,SK10N70B-TF,SKIS40N120-T7,LM358-T8,SM36,SKG45N10-T,SK50P04,SKG60N03-T,SM18,UC3845-P8,Q-SSC10120-T,SKQ18P02AD,SKIS50N65-T7,SK14N80B-TF,SRF957,SKG130N10-T,SKG90N10-T,SM24,Q-SSC08120-T,SK07N80B-TF,SM20,SKG365N10-T7,SKG60N03AD,SK12N90B-TF,LM358-M8,UC3844-D8,SKQ40N04AD,Q-SSC1565-T,SKQ90N03AD,SK80N03,LM358-E8,Q-SSC1065,SKG10N04-P8,SK50P04-P8,SKQ40N04BD,Q-SSC1065-TF,SKQ30N04AD,SKQ80N03AD,SKGI8020B165,Q-SSC2090-T7,SK240N04-TF,BFG93A/X,SK10N03-P8,Q-SSC20120-T,SKQ14N15AD,SKIS75N65-T7,SK18N20B-T,SK03N120B,SKQ30N04BD,Q-SSC1565,2SC3585,PCT801,SK03N06L,SK240N04,SKG195N04,SK18N03-P8,SK10N03,UPC2712,BFG540,SK22P04-P8,SKQ35P03AD,BFG93A,SKG100N12-T,SK20N65A-TF,Q-SSC10120,SKG100N06AD,SKG10N04,SKG195N04AD,SKQ40P02AD,UC3845-D8,SKG100N06,SKQ90N10AD,Q-SSC05120-T,BT151-800,SK05U45AAP,SBR951,BFG540/X,SM08,SK22P04,SK80N03-T,UC3844-P8,SKG210N08-T7,SKQ50P03AD,SKG195N04-T,Q-SSC0865-TF,SKG130N10AD,SBR941,SDV301N3,SKG100N15-T,Q-SSC0865,SKG60N03,LM358-P8,SKQ56P03AD,SK09N150-T7,SM03,SK35P10,Q-SSC05120,变频器,电机控制,UPS不间断电源,大功率照明电源,冰箱,HID照明,SMPS备用电源,掌上电脑,室内外空调,便携式仪器,笔记本适配器,适配器,CATV 放大器,移动充电器,电池供电系统,DBS调谐器,多功能打印机,高效DC-DC转换器,太阳能逆变器,PC电源,显示屏,便携式电器,大功率无人机,高频开关电源,电焊机,洗衣机,手机电话听筒和部件,网络,UPS转换器,电源开关应用,模拟数字无绳电话,主板,无线安防报警器,逆变器,快充,太阳能,电源管理,蜂窝无线电,卫星电视调谐器,PCN,E-BIKE充电器,台式机,汽车电源,天线,射频模块,LED灯,开关电源,高频头,台式计算机,暖气系统,开关调节器,光纤模块,TV电源,PDA,基于微处理器的设备,笔记本,雷达感应探测器,振动器,SMPS用同步整流器,烘干机,智能家居,DC-DC转换器,PD电源,家庭照明,工业,工控设备,储能,激光脉冲电源,电机驱动,电信领域,外设,工业UPS电源,充电桩,充电器,GPS接收机,串行和并行端口,变压器耦合DC-DC转换器,对讲机,发光二极管背光应用,商用网络和服务器电源单元,电源,大功率适配器,通信电源,静态开关,服务器电源模块,高频电路,负载开关,运放

2022/11/30 - 应用及方案代理服务技术支持采购服务

UC3845电流模式PWM控制电路

该资料介绍了UC3845电流模式PWM控制电路的特点和应用。它是一种适用于离线或DC到DC转换器的固定频率电流模式控制器，具有低启动电流、自动前馈补偿、脉冲电流限制等功能。

时科 - CURRENT MODE PWM CONTROL CIRCUITS,电流模式PWM控制电路,UC3845,UC3845-D8,UC3845-P8

2022/10/10 - 数据手册 - REV.08.1 代理服务技术支持采购服务

Silanna Semiconductor Announces World‘s First Buck Converter IC to Feature Intelligent, Adaptive Power Sharing

Silanna Semiconductor has launched the world‘s first buck converter Power IC SZPL3002A to feature intelligent power sharing. It is with a built-in USB PD/FC port controller that reduces the number of components needed to implement 65W fast charger and adapter applications with up to four ports.

2022-08-12 - 新产品

一个集成电路用于多种DC-DC拓扑：双输出降压集成电路也可用于SEPIC和Boost应用设计说明

本文介绍了如何使用Analog Devices的LTC3892双输出降压控制器，在 SEPIC（升压和降压）和升压应用中。LTC3892是一款适用于汽车和工业应用的同步降压控制器，具有4.5V至60V的输入输出电压范围。文章详细描述了电路设计和功能，包括如何通过LTC3892实现两个输出：VOUT1为10A的3.3V和VOUT2为3A的12V，以及如何在电压下降或电压尖峰情况下保持输出电压稳定。此外，文章还展示了如何将DC2727A演示电路的SEPIC部分重配置为升压拓扑。

ADI - 柔性控制器,STEP-DOWN CONTROLLER,降压控制器,DC-TO-DC CONVERTER,双路输出降压IC,FLEXIBLE CONTROLLER,DUAL OUTPUT STEP-DOWN IC,直流-直流转换器,LTC3892,LTC3892EUH-2,DC2727A,SEPIC AND BOOST CONVERTER APPLICATIONS,汽车,SEPIC和升压转换器应用,INDUSTRIAL,同步降压转换器,AUTOMOTIVE,SYNCHRONOUS BUCK CONVERTERS,工业

2019/04/27 - 应用笔记或设计指南产品选型

应对通用照明应用的电源挑战

本文探讨了LED驱动器在通用照明应用中的挑战，包括降低组件尺寸、提高能源效率、支持多种配置和精确控制以保持LED光特性。文章详细讨论了高功率LED照明、低/中功率LED照明、红外二极管用于机器视觉系统和低功率LED照明的挑战和解决方案。

MAXIM - LED CONTROLLER IC,DC-DC CONVERTER,LED控制器IC,LED驱动器IC,LED DRIVERS IC,DC-DC变换器,MAX20090,MAX16823,MAX20050,MAX20096,MAX25600,MAX20078,MAX25610A

February 2020 - 白皮书

用于精密电磁阀控制应用的MC33816 SD6可编程电磁阀控制器

MC33816是一款用于精密电磁阀控制的可编程栅极驱动集成电路。该IC包含五个外部MOSFET高边预驱动器和七个外部MOSFET低边预驱动器，提供灵活的MOSFET栅极驱动解决方案。它具有高边/低边预驱动器、DC-DC转换器、电流测量和诊断功能，以及电源和监控功能。该IC支持多种应用，包括汽车、船舶、卡车和工业动力系统。

NXP - MC33816

2019/02/24 - 商品及供应商介绍 - REV 5

ZLED7000/ZLED7020应用说明-降压转换器LED驱动器应用

本资料介绍了ZLED7000和ZLED7020两款控制器IC，用于构建高效率的DC-DC转换器，特别适用于驱动LED负载。资料详细阐述了Buck转换器的工作原理、LED电流纹波、开关频率、调光能力和效率等方面的内容，并提供了应用实例和元件选择指南。

IDT - 控制器集成电路,CONTROLLER ICS,ZLED7020,ZLED7000,BUCK CONVERTER LED DRIVER APPLICATIONS,构建DC-DC转换器,BUILDING DC-DC CONVERTERS,降压转换器LED驱动器应用

April 18, 2016 - 应用笔记或设计指南

电源管理指南2019

本指南深入探讨了功率管理领域的最新技术和产品，涵盖了能源生成与分配、可穿戴设备、LED照明与控制、电动交通、工业电力与工具以及家用电器等多个应用领域。重点介绍了ST公司提供的广泛产品组合，包括AC-DC转换IC、电池管理IC、DC-DC转换IC、数字电源控制器和微控制器、二极管和整流器、热插拔电源管理、IGBT、智能功率开关、LED驱动器、线性稳压器、LNB电源和光伏IC等。指南还提供了丰富的参考设计和评估工具，以帮助工程师设计和优化高效电源解决方案。

ST - 电压控制器,离线LED驱动器,SERVER,E-FUSES,谐振控制器,无线电力接收器,SIC DIODES,晶闸管,功率金氧半电晶体,DC-DC开关转换IC,家用电池存储系统,适配器,DC-DC控制器,串逆变器,不间断电源,碳化硅二极管,汽车微控制器,TELECOM POWER,HOME BATTERY STORAGE SYSTEM,智能选择器,ADAPTERS,VOLTAGE CONTROLLERS,MICROINVERTER,DC-DC SWITCHING CONVERTER,POWER BREAKERS,LED ARRAY DRIVERS,整流器,DC-DC SWITCHING CONVERSION ICS,NON ISOLATED AUXILIARY SMPS,电池管理集成电路,SIC MOSFET,PFC CONTROLLERS,WIRELESS POWER TRANSMITTERS,OFFLINE CONTROLLER,STRING INVERTER,CONFIGURATORS,LOW-VOLTAGE POWER MOSFETS,DC-DC CONTROLLERS,PFC控制器,辅助SMPS,电源优化器,直流-直流开关变换器,非隔离辅助SMPS,LED ROW DRIVERS,CURRENT CONTROLLERS,隔离式辅助SMPS,AC-DC CONVERSION ICS,LED阵列驱动器,微型逆变器,SIC MOSFETS,WIRELESS CHARGING,BATTERY MANAGEMENT ICS,离线控制器,电流检测放大器,OPERATIONAL AMPLIFIERS,高压变频器,发光二极管,CENTRAL INVERTER,计量IC,SMART SELECTOR,CURRENT SENSE AMPLIFIER,DIODES,门驱动器,MCU,电流控制器,THYRISTORS,中央逆变器,伺服器,LINEAR VOLTAGE REGULATORS,POWER OPTIMIZER,LED行驱动器,数字电源控制器,SMART CHARGERS,牵引主逆变器,电源断路器,WIRELESS POWER RECEIVERS,DC-DC CONVERTERS,COMPARATORS,车载充电器,AUXILIARY SMPS,太阳能逆变器,无线充电,UNINTERRUPTABLE POWER SUPPLIES,GATE DRIVERS,TRACTION MAIN INVERTER,电流感测放大器,BATTERY CHARGERS,RECTIFIER,以太网供电IC,PHOTOVOLTAIC ICS,IGBTS,ISOLATED AUXILIARY SMPS,低压功率MOSFET,OFFLINE LED DRIVERS,LED DRIVERS,DC FAST CHARGING STATION,电源AC-DC适配器,AUTOMOTIVE MICROCONTROLLERS,硅二极管,蓄电池充电器,比较器,电子保险丝,同步整流控制器,POWER OVER ETHERNET ICS,DC-DC LED DRIVERS,智能充电器,METERING ICS,RESONANT CONTROLLERS,CAN TRANSCEIVER,COMMERCIAL BATTERY STORAGE SYSTEM,WEARABLE DEVICES,POWER MOSFETS,LED驱动器,电信电力,SOLAR INVERTERS,AC-DC转换集成电路,POWER AC-DC ADAPTERS,DC-DC LED驱动器,线性调压器,直流快速充电站,DC-DC转换器,HIGH-VOLTAGE CONVERTERS,DIGITAL POWER CONTROLLERS,SYNCHRONOUS RECTIFICATION CONTROLLERS,穿戴式设备,LED,无线电力发射器,ON-BOARD CHARGER,商用电池存储系统,MCUS,运算放大器,CAN 收发器,光伏集成电路,电源,配置器,SILICON DIODES,CURRENT SENSING AMPLIFIERS,POWER SUPPLIES,二极管,ST1CC40,STEVAL-ILL074V1,PM8834,SPBTLE-RF0,PM677*,STPSC*12,LDBL20,STG*H65DFB,STTH*L06,STIPQ*M60T-H,TSM*,LDFM,STEVAL-ILL074V2,LD39100,ST*12N170K5,STEVAL-ILL085V1,STUSB4710,LDK220/320,TN*050H-12W,L6591,STPS* FERD*45,STEVAL-DPSLLCK1,LD39115,STPS*,STTH*08,ST1S4*,L6565,STSW-DALI001,STPSXX,STL*N10F7,STTH*06,ST1S40,STUSB4700,STNRGPF01,LD39200,PM8805,PM8804,ST1S32,PM8803,STEVAL-ISA152V1,STSW-DALI002,ST25R3913,STSW-STM8025,ST25R3912,STM32F301,L6699,ESDA17P20-1U1M,PM6764,ST1S50,STLM2,PM676*,ST*90K5,STWBC,ST25R3916,STGAP*,STEVAL-ISA205V1,STM32F334,STEVAL-POE002V1,ST*150K5,DK5,STPM34,STPM33,STEVAL-ILL053V2,STPM32,STL10N3LLH5,STEVAL-ISC005V1,IIS2DH,ST1S*,STEVAL-ISA195V1,STEVAL-ISA172V2,STWBC-EP,STM32H743,PM8801,EVLHVLED815W15,ESDA25P35-1U1M,STNRGPF12,F6,F7,STL8DN6LF3,HVLED002,STEVAL-ISA160V1,STEVAL-LLL004V1,STEVAL-ISA184V1,STEVAL-POE001V1,LED2000,LED2001,DM2,SCT*N120,ESDA15P60,EVL6699-HVSL,DM6,STP16,L649*,ST25R,STEVAL-VP26K01F,STEVAL-ILL077V1,STEVAL-ISC004V1,STPDDC60,L6377,STEVAL-ISA196V1,ESDA24P140-1U1M,2STM32G081,STP04,STP08,H6,STSW-USB2TYPEC1,L6375,TSC1031IYPT,ST25R3911B,ESDA17P100-1U2M,LD39130,ST25DV-DISCOVERY,STM32F0,STEF05S,STM32F1,STM32F4,STM32F3,BLUENRG-2,STSW-STLUXSMED02,BLUENRG-1,STEF05L,STM32F7,VIPER122,STTS75,STUSB1600,SPC58EC-DISP,STPS*100,LNBH25S,STGAP1AS,STG*H120DF2,STM32G0,LD39020/30,STEVAL-ISA178V1,STL*N40F7,STM32G4,ST*65DM2,EVLSTNRG-1KW,ESDA13P70-1U1M,ST*N8F7,STEVAL-ILL066V2,STEVAL-LDO001V1,LD59100,ST1L08,STSW-STLUXLIB02,STNRG011,STSAFE-A,AEK-USB-2TYPEC1,STEVAL-POE003V1,K5,SMA4F,VIPER122 VIPER*6,LDLN025/30,STG*M120DF3,L6566A,L6566B,STUSB1700,HTS22,STEVAL-LLL006V1*,STUSB4710A,STL6N3LLH6,FERD*100,HVLED001*,STEF033,STCH03,STCH02,LD1117A,LNBH26S,LIS2DW12,ST*60M2-EP,TSV*,LD56050,ST*105K5,ESDA7P120-1U1M,STG*M65DF2,STP4CMP,PM6697,L6564*,SMB15F,STBC02,M2,TN*015H-6,SCT*N65G2,ST*65M2,M5,STEVAL-POE006V1,M6,TS*,LDO40L,EVALSTWBC-EP,ST*N10F7,SPC58NE84C3,ST*65M6,ST*65M5,LD59150,STCMB1,M2-EP,STTH*10,STGYA120M65DF2AG,ALTAIR*,STTH*12,ESDA13P70,ST*N6F7,ESDL20-1BF4,STEVAL-1PS01GJR*,STEF12S,ST25R3916-DISCO,STNRG,M24SR,L6566*,STG*V60DF,EVLCMB1-90WADP,STPS100,STEVAL-POE005V1,TSC102,STM32H7,LDF,LD59015,STEVAL-USBC2DP,L6562A*,STM32,STM32G081B-EVAL,STPS*200,L6599*,STL8DN10LF3,ST25R3911B-DISCO,L6563*,ST*9*K5,PM8800A,L5973AD,SPV1050,ESDZV053-1BU2,STKNX,PM6680,LED8102S,STGIB*CH60(T)S-L(E),L6599A,EVLSTNRG011-150,TN*050H-8,STEVAL-IHT008V1,SEA*,STEVAL-ILL069V2,EVAL-SCS001V1,STEF12,STNS01,STEVAL-ISB045V1,LDK130,ESDA15P50-1U1M,FERD*45,L6566*; L6599A*,SPV1040,L6566BH,STEVAL-ISA159V1,STBCFG01,SPC58,FERD*50,STEF01,ST715,TWBC,LED1642,STEF05,ESD051-1F4,STPW12,LDL112,ST*N4F7,L6599A*,FER*100,STEVAL-ISA147V3,NUCLEO-G071RB,EVLCMB1-AIO210W,USBLC6-2SC6Y,SRK2001,STM32L1,SM4T26AY,STWBC-WA,STM32L5,STEVAL-ISB044V1,L4981*,STG*H65DFB2,STPW05,PEP01-5841,STD28P3LLH6AG,STELPD01*,M24512-A125,L6986F,LD56100,STRIPFET F7,SRK2000A,L5964**,L5972D,BAR46,STLD4X,STGIF*CH60(T)S-L(E),STLA02,STBR*12,SMA6F,STEF4S,STEVAL-USBPD45C,SPBTLE-1S,LPS22HB,SCT*N120G2,STL*N80F7,STTH*W04,STTH*W03,STTH*W02,LDK220,STUSB1602A,STEVAL-1PS01EJR,VIPER*1,IIS3DHHC,LD56030,VIPER*5,L6743B,VIPER*6,VIPER*7,STTH240F0,VIPER*8,SCT3117,STLQ015,FERD*60,STEVAL-ISB042V1,ST25DV-I2C,ST*N2VH5,STPSC*065,STC4054,SRK1000,LED77*,EVL185W-LEDTV,L6983*,SRK1001,STEVAL-ISA203V1*,LED1642GW,ST*N120K5,L5964,L5963,LDL212,STBB3J,STEF512,STEVAL-ILL070V4,STPS*45,STEVAL-POEL45W1,FERD,PM88*1,TSC*,STEVAL-IPM*,L6924U,2STN1360,STUSB1702Y,ESDA17P100,M95512-A125,STEVAL-ISA181V1,STEVAL-ISA204V1,STD45P4LLF6AG,ST*60M6,LED6001,STPS*60,LED6000,ST*60M2,L672*,STEVAL-1PS01BJR*,STLQ020,STEVAL-ISA170V1,LD39050,ESDA25W,LM135Z,L673*,STTH*R06,STM32G474,LDK320,LED600*,STBB1-AXX,ST*120K5,SPBTLE-RF,TDE1707,STUSB4761,STEVAL-ISB047V1,SRK2001A,L6668,VIPER0P,STM8,STNRG328A,STWBC-MC,STEVAL-ISA115V1,STTH15AC06*,LNBH29,ST1S12,ST25DV-PWM-ESET,ST1S14,STEVAL-ILL083V1,L5974D,TDE1897,ST1S3*,TDE1898,SM6T28AY,LED5000,STTH*S12,STPS60,EVL150W-HVSL,ESDL121-1BU2,STEVAL-1PS01AJR,BAT30F4,LNBH30,STC3115,STEVAL-IPFC12V1,ST*60DM6,STWLC33,STUSB4500,L59745AD,ST*80K5,ST*60DM2,T*432,T*431,STPRDC02,TCPP01-M12,ST*N4LF7,STM32G071B-DISCO,STPS*L30,SSTBC03,STPRDC01,STEVAL-IPFC01V1,BLUENRG-MS,L7986,L7987,STPS*30,STTH*T06,L7981,STEVAL-ILM001V1,L4984D,STUSB45,LMV*,STUSB47,LED2472G,STP24DP05,STEVAL-SMACH15V1,IPS161H,COMMERCIAL,TV,TABLETS,RESIDENTIAL,照明,车辆安全,REMOTE ASSISTANCE,PARKING SERVICES,停车服务,远程协助,体育保健用品,COMMERCIAL BUILDING,不间断电源,通用串口总线,UPS,住宅的,TELECOMS,STREET LIGHTING,AIO,FACTORY AUTOMATION,TVS,DESKTOP PCS,商业的,CONSUMER ELECTRONICS,GRID-CONNECTED SOLAR APPLICATIONS,机顶盒,台式电脑,蓝牙配件,电信,空调,消费电子,SMART HOME,SMART METERING,SET-TOP BOXES,笔记本,空中传送软件,SMARTPHONES,HOME APPLIANCES,航空工业组织,SOFTWARE OVER-THE-AIR,LIGHTING,智能手机,SMARTPHONES,智能计量,BLUETOOTH ACCESSORIES,商业建筑,AIR CONDITIONING,NOTEBOOK,USB,平板,并网太阳能应用,路灯,智能家居类,RESIDENTIAL,家用电器,工厂自动化,LAPTOPS,笔记本电脑,FITNESS,VEHICLE SECURITY

June 2019 - 选型指南产品选型