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位置：首页 > IC中文资料 > UC3843A

UC3843A价格

参考价格：￥3.7183

型号：UC3843AD 品牌：TI 备注：这里有UC3843A多少钱，2026年最近7天走势，今日出价，今日竞价，UC3843A批发/采购报价，UC3843A行情走势销售排行榜，UC3843A报价。

型号	功能描述	生产厂家企业	LOGO
UC3843A	CURRENT MODE PWM CONTROLLER DESCRIPTION The UC184xA family of control ICs provides all the necessary features to implement off-line fixed-frequency, current-mode switching power supplies with a minimum of external components. The current mode architecture demonstrates improved load regulation, pulse-by-pulse current limitin	MICROSEMI 美高森美	MICROSEMI
UC3843A	CURRENT MODE PWM CONTROL CIRCUITS DESCRIPTION The UTC UC3842A/3843A provide the necessary functions to implement off-line or DC to DC fixed frequency current mode , controlled switching circuits with a minimal external part count FEATURES * Low external part count. * Low start up current ( Typical 0.12mA ) * Automatic feed fo	UTC 友顺	UTC
UC3843A	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER DESCRIPTION The UC384xA family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under volta	STMICROELECTRONICS 意法半导体	STMICROELECTRONICS
UC3843A	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER DESCRIPTION The UC384xA family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequencycurrent mode control schemes with a minimal external parts count. Internally implemented circuits includea trimmed oscillator for precise DUTY CYCLE CONTROL under voltage	STMICROELECTRONICS 意法半导体	STMICROELECTRONICS
UC3843A	具有 8.4V/7.6V UVLO 100% 占空比、温度范围为 0°C 至 70°C 的 30V、1A、500KHz 电流模式 PWM 控制器 The UCx84xA family of control devices is a pin-for-pin compatible improved version of the UCx84x family. Providing the necessary features to control current-mode or switched-mode power supplies, this family of devices has many improved features: startup current is less than 0.5 mA, oscillator discha • Optimized for Off-Line and DC-DC Converters\n• Low Start-Up Current (WEBENCH® Power Designer;	TI 德州仪器	TI
UC3843A	DC-DC电源芯片	TDSEMIC	TDSEMIC
UC3843A	AC/DC Switching Regulators	UTC 友顺	UTC
UC3843A	High Performance Current Mode Controller 文件：263.91 Kbytes Page：6 Pages	FCI 富加宜	FCI
UC3843A	CURRENT MODE PWM CONTROL CIRCUITS 文件：96.87 Kbytes Page：9 Pages	UTC 友顺	UTC
UC3843A	Current Mode PWM Controller 文件：517.22 Kbytes Page：11 Pages	TI 德州仪器	TI
UC3843A	Current Mode PWM Controller 文件：517.22 Kbytes Page：7 Pages	TI 德州仪器	TI
UC3843A	Current-Mode PWM Controller 文件：1.81918 Mbytes Page：45 Pages	TI 德州仪器	TI
UC3843A	Current Mode PWM Controller 文件：3.93857 Mbytes Page：29 Pages	TI 德州仪器	TI
UC3843AN	描述脉冲宽度调制解调器电流型脉宽调制器 Descriptions The UC3843 is a fixed frequency current mode PWM controllers, It is specifically designed for OffLine and DCDC converter applications. This integrated circuits feature a temperature compensated reference, high gairerror amplifier, current sense comparator, and a high Push	XBLW 芯伯乐 PDF上传者：深圳市博伟奇电子有限公司	XBLW
UC3843A-BW	Current Mode PWM Controller Low Start-Up and Operating Current DESCRIPTION The UC3842A-BW/43A-BW/44A-BW/45A-BW are fixed frequency current mode PWM controller. They are specially designed for OFF−Line and DC to DC converter applications with a minimal external components. Internally implemented circuits include a trimmed oscillator for precise duty cycle con	FCI 富加宜	FCI
UC3843AD	HIGH PERFORMANCE CURRENT MODE CONTROLLERS The UC3842A, UC3843A series of high performance fixed frequency current mode controllers are specifically designed for off–line and dc–to–dc converter applications offering the designer a cost effective solution with minimal external components. These integrated circuits feature a trimmed oscillat	MOTOROLA 摩托罗拉	MOTOROLA
UC3843AD	CURRENT MODE PWM CONTROLLER DESCRIPTION The UC184xA family of control ICs provides all the necessary features to implement off-line fixed-frequency, current-mode switching power supplies with a minimum of external components. The current mode architecture demonstrates improved load regulation, pulse-by-pulse current limitin	MICROSEMI 美高森美	MICROSEMI
UC3843AD	SMPS Controller Description The UC3842A/UC3843A are fixed PWM controller for Off-Line and DC to DC converter applications. The internal circuits include UVLO, low start up current circuit, temperature compensated reference, high gain error amplifier, current sensing comparator, and high current totem-pole output	FAIRCHILD 仙童半导体	FAIRCHILD
UC3843AD	HIGH PERFORMANCE CURRENT MODE CONTROLLERS The UC3842A, UC3843A series of high performance fixed frequency current mode controllers are specifically designed for off−line and DC−to−DC converter applications offering the designer a cost effective solution with minimal external components. These integrated circuits feature a trimmed oscillat	ONSEMI 安森美半导体	ONSEMI
UC3843AD1	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER 1 FEATURES ■ TRIMMED OSCILLATOR DISCHARGE CURRENT ■ CURRENT MODE OPERATION TO 500kHz AUTOMATIC FEED FORWARD COMPENSATION ■ LATCHING PWM FOR CYCLE-BY-CYCLE CURRENT LIMITING ■ INTERNALLY TRIMMED REFERENCE WITH UNDERVOLTAGE LOCKOUT ■ HIGH CURRENT TOTEM POLE OUTPUT UNDERVOLTAGE LOCKOUT WITH	STMICROELECTRONICS 意法半导体	STMICROELECTRONICS
UC3843AD1	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER DESCRIPTION The UC384xA family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under volta	STMICROELECTRONICS 意法半导体	STMICROELECTRONICS
UC3843AD1	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER DESCRIPTION The UC384xA family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequencycurrent mode control schemes with a minimal external parts count. Internally implemented circuits includea trimmed oscillator for precise DUTY CYCLE CONTROL under voltage	STMICROELECTRONICS 意法半导体	STMICROELECTRONICS
UC3843ADM	CURRENT MODE PWM CONTROLLER DESCRIPTION The UC184xA family of control ICs provides all the necessary features to implement off-line fixed-frequency, current-mode switching power supplies with a minimum of external components. The current mode architecture demonstrates improved load regulation, pulse-by-pulse current limitin	MICROSEMI 美高森美	MICROSEMI
UC3843ADX	SMPS Controller Description The UC3842A/UC3843A are fixed PWM controller for Off-Line and DC to DC converter applications. The internal circuits include UVLO, low start up current circuit, temperature compensated reference, high gain error amplifier, current sensing comparator, and high current totem-pole output	FAIRCHILD 仙童半导体	FAIRCHILD
UC3843AM	CURRENT MODE PWM CONTROLLER DESCRIPTION The UC184xA family of control ICs provides all the necessary features to implement off-line fixed-frequency, current-mode switching power supplies with a minimum of external components. The current mode architecture demonstrates improved load regulation, pulse-by-pulse current limitin	MICROSEMI 美高森美	MICROSEMI
UC3843AN	HIGH PERFORMANCE CURRENT MODE CONTROLLERS The UC3842A, UC3843A series of high performance fixed frequency current mode controllers are specifically designed for off−line and DC−to−DC converter applications offering the designer a cost effective solution with minimal external components. These integrated circuits feature a trimmed oscillat	ONSEMI 安森美半导体	ONSEMI
UC3843AN	SMPS Controller Description The UC3842A/UC3843A are fixed PWM controller for Off-Line and DC to DC converter applications. The internal circuits include UVLO, low start up current circuit, temperature compensated reference, high gain error amplifier, current sensing comparator, and high current totem-pole output	FAIRCHILD 仙童半导体	FAIRCHILD
UC3843AN	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER DESCRIPTION The UC384xA family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequency current mode control schemes with a minimal external parts count. Internally implemented circuits include a trimmed oscillator for precise DUTY CYCLE CONTROL under volta	STMICROELECTRONICS 意法半导体	STMICROELECTRONICS
UC3843AN	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER 1 FEATURES ■ TRIMMED OSCILLATOR DISCHARGE CURRENT ■ CURRENT MODE OPERATION TO 500kHz AUTOMATIC FEED FORWARD COMPENSATION ■ LATCHING PWM FOR CYCLE-BY-CYCLE CURRENT LIMITING ■ INTERNALLY TRIMMED REFERENCE WITH UNDERVOLTAGE LOCKOUT ■ HIGH CURRENT TOTEM POLE OUTPUT UNDERVOLTAGE LOCKOUT WITH	STMICROELECTRONICS 意法半导体	STMICROELECTRONICS
UC3843AN	HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER DESCRIPTION The UC384xA family of control ICs provides the necessary features to implement off-line or DC to DC fixed frequencycurrent mode control schemes with a minimal external parts count. Internally implemented circuits includea trimmed oscillator for precise DUTY CYCLE CONTROL under voltage	STMICROELECTRONICS 意法半导体	STMICROELECTRONICS
UC3843AN	HIGH PERFORMANCE CURRENT MODE CONTROLLERS The UC3842A, UC3843A series of high performance fixed frequency current mode controllers are specifically designed for off–line and dc–to–dc converter applications offering the designer a cost effective solution with minimal external components. These integrated circuits feature a trimmed oscillat	MOTOROLA 摩托罗拉	MOTOROLA
UC3843A_15	CURRENT MODE PWM CONTROL CIRCUITS 文件：340.32 Kbytes Page：9 Pages	UTC 友顺	UTC
UC3843AD	封装/外壳：14-SOIC（0.154"，3.90mm 宽）功能：升压，降压，升压/降压包装：卷带（TR）剪切带（CT）Digi-Reel® 得捷定制卷带描述：IC REG CTRLR MULT TOP 14SOIC 集成电路（IC） PMIC - 稳压器 - DC DC 开关式控制器	TI 德州仪器	TI
UC3843AD	封装/外壳：8-SOIC（0.154"，3.90mm 宽）功能：升压，升压/降压包装：卷带（TR）描述：IC REG CTRLR 8SOIC 集成电路（IC） DC-DC 开关控制器	ONSEMI 安森美半导体	ONSEMI
UC3843AD	Current Mode PWM Controller 文件：3.93857 Mbytes Page：29 Pages	TI 德州仪器	TI
UC3843AD	High Performance Current Mode Controllers 文件：359.99 Kbytes Page：18 Pages	ONSEMI 安森美半导体	ONSEMI
UC3843AD	Current Mode PWM Controller 文件：517.22 Kbytes Page：11 Pages	TI 德州仪器	TI
UC3843AD	Current-Mode PWM Controller 文件：1.81918 Mbytes Page：45 Pages	TI 德州仪器	TI
UC3843A-D08-T	CURRENT MODE PWM CONTROL CIRCUITS 文件：96.87 Kbytes Page：9 Pages	UTC 友顺	UTC
UC3843AD1	High Performance Current Mode Controllers 文件：359.99 Kbytes Page：18 Pages	ONSEMI 安森美半导体	ONSEMI
UC3843AD1G	High Performance Current Mode Controllers 文件：359.99 Kbytes Page：18 Pages	ONSEMI 安森美半导体	ONSEMI
UC3843AD1R2	High Performance Current Mode Controllers 文件：359.99 Kbytes Page：18 Pages	ONSEMI 安森美半导体	ONSEMI
UC3843AD1R2G	High Performance Current Mode Controllers 文件：359.99 Kbytes Page：18 Pages	ONSEMI 安森美半导体	ONSEMI
UC3843AD2R2	High Performance Current Mode Controllers 文件：359.99 Kbytes Page：18 Pages	ONSEMI 安森美半导体	ONSEMI
UC3843AD2R2G	High Performance Current Mode Controllers 文件：359.99 Kbytes Page：18 Pages	ONSEMI 安森美半导体	ONSEMI
UC3843AD8	Current Mode PWM Controller 文件：517.22 Kbytes Page：11 Pages	TI 德州仪器	TI
UC3843AD8	Current Mode PWM Controller 文件：3.93857 Mbytes Page：29 Pages	TI 德州仪器	TI
UC3843AD8	Current-Mode PWM Controller 文件：1.81918 Mbytes Page：45 Pages	TI 德州仪器	TI
UC3843AD8G4	Current Mode PWM Controller 文件：3.93857 Mbytes Page：29 Pages	TI 德州仪器	TI
UC3843AD8G4	Current-Mode PWM Controller 文件：1.81918 Mbytes Page：45 Pages	TI 德州仪器	TI
UC3843AD8G4	Current Mode PWM Controller 文件：517.22 Kbytes Page：11 Pages	TI 德州仪器	TI
UC3843AD8TR	Current Mode PWM Controller 文件：517.22 Kbytes Page：11 Pages	TI 德州仪器	TI
UC3843AD8TR	Current-Mode PWM Controller 文件：1.81918 Mbytes Page：45 Pages	TI 德州仪器	TI
UC3843AD8TR	Current Mode PWM Controller 文件：3.93857 Mbytes Page：29 Pages	TI 德州仪器	TI
UC3843AD8TRG4	Current-Mode PWM Controller 文件：1.81918 Mbytes Page：45 Pages	TI 德州仪器	TI
UC3843AD8TRG4	Current Mode PWM Controller 文件：3.93857 Mbytes Page：29 Pages	TI 德州仪器	TI
UC3843AD8TRG4	Current Mode PWM Controller 文件：517.22 Kbytes Page：11 Pages	TI 德州仪器	TI
UC3843ADG	High Performance Current Mode Controllers 文件：359.99 Kbytes Page：18 Pages	ONSEMI 安森美半导体	ONSEMI
UC3843ADG4	Current Mode PWM Controller 文件：517.22 Kbytes Page：11 Pages	TI 德州仪器	TI
UC3843ADG4	Current-Mode PWM Controller 文件：1.81918 Mbytes Page：45 Pages	TI 德州仪器	TI

UC3843A产品属性

类型
描述
Duty cycle (Max) (%)：
100
Supply voltage (Max) (V)：
28
UVLO thresholds on/off (V)：
8.4/7.6
Features：
Adjustable Switching Frequency
Operating temperature range (C)：
0 to 70
Rating：
Catalog
Frequency (Max) (kHz)：
500
Gate drive (Typ) (A)：
1

UC3843A供应商更多...

更新时间：2026-7-23 9:35:00

IC供应商	芯片型号	品牌	批号	封装	库存	备注	价格
深圳市高捷芯城科技有限公司	UC3843AD1R2G	ON(安森美)	24+	标准封装	15048	全新原装正品/价格优惠/质量保障	询价
深圳市得捷芯城科技有限公司	UC3843AD8	TI	25+	SOIC-8	7786	原装正品现货,原厂订货,可支持含税原型号开票。	询价
深圳市芯祺盛科技有限公司	UC3843AD8G4	TI(德州仪器)	2613+	SOIC-8	8474	原装认证库存-更多数量可原厂发货	询价
深圳市创新迹电子有限公司	UC3843ADTR	TI	2021+	SOIC14	6800	原厂原装,欢迎咨询	询价
千层芯半导体(深圳)有限公司	UC3843AD	TI	24+	SOIC14	5630	TI一级代理原厂授权渠道实单支持	询价
深圳市英卓尔科技有限公司	UC3843AD8TR	TI/德州仪器	22+	SOP8	30000	原装正品现货	询价
深圳市澳亿芯电子科技有限公司	UC3843AN	TI/德州仪器	25+	DIP	98900	原厂原装正品现货!!	询价
深圳市科达星科技有限公司	UC3843AD	TI	25+	SOP8	26200	原装现货,诚信经营!	询价
深圳市美思瑞电子科技有限公司	UC3843AP-S08-R	友顺 UTC	23+	SOP-8	33170	原装正品，实单请联系	询价
深圳市百诺芯科技有限公司	UC3843ADTR	TI/德州仪器	23+	SOIC14	18204	原装正品代理渠道价格优势	询价

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UC3843D1-开关电源控制器
说明是固定的UC3842/UC3843/UC3844/UC3845 frequencycurrent模式PWM控制器。他们是专门为离线和直流到直流转换器应用设计以最少的外部元件。这些集成电路功能进行精确修剪占空比振荡器控制，温度补偿的参考，高增益误差放大器，电流检测比较器和一个高当前totempole输出用于驱动功率MOSFET。该与UC3844 UC3842的16V的欠压锁定阈值有（上）和10V（关闭）。 UC3843与UC3845的是8.5V时（ON）和7.9V（关闭）。 UC3842的和UC3843的范围内可以操作100％占空比。 UC3844与UC3845的可以操作
2013-3-6

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找IC，尽在114IC

UC3843A价格

UC3843A产品属性

UC3843A供应商更多...

UC3843A芯片相关品牌

UC3843A规格书下载地址

UC3843A参数引脚图相关

UC3843A数据表相关新闻

UC3843AP-SOP8R-TW0G_UTC代理商

UC3842AN

UC3842BD1013TR原装现货

UC3842BD1R2G原装现货

UC3844BNG公司原装现货

UC3843D1-开关电源控制器

DdatasheetPDF页码索引