UC2843B

The UC3842B, UC3843B series are high performance fixed

frequency current mode controllers. They are specifically designed for

Off−Line and DC−DC converter applications offering the designer a

cost−effective solution with minimal external components. These

integrated circuits feature a trimmed oscillator for precise duty cycle

control, a temperature compensated reference, high gain error

amplifier, current sensing comparator, and a high current totem pole

output ideally suited for driving a power MOSFET.

Also included are protective features consisting of input and

reference undervoltage lockouts each with hysteresis, cycle−by−cycle

current limiting, programmable output deadtime, and a latch for single

pulse metering.

These devices are available in an 8−pin dual−in−line and surface

mount (SOIC−8) plastic package as well as the 14−pin plastic surface

mount (SOIC−14). The SOIC−14 package has separate power and

ground pins for the totem pole output stage.

The UCX842B has UVLO thresholds of 16 V (on) and 10 V (off),

ideally suited for off−line converters. The UCX843B is tailored for

lower voltage applications having UVLO thresholds of 8.5 V (on) and

7.6 V (off).

UC2843B图片

UC2843B参数：

型号：UC2843B

品牌：ON

封装规格：SOP8

存储温度：-55-100°

存储环境：常温

主营品牌：TI德州仪器、风华、ST意法、ON安森美、YAGEO国巨、江苏长电、TDK、Sunlord、美国微芯、Infineon、ADI、松下、先科、金升阳、STC、NXP、台湾厚声、HOLTEK、威世、DIODES、宏发、村田、EVERLIGHT、LRC、安世、上海贝岭、KOA、基美、三星、东芝、AVX、OMRON、台湾圆达、圣邦微、红宝石、康奈克斯、UTC、菲尼克斯、新唐、美信、美国泰科、ROHM罗姆、BOURNS、爱普生、凌特、3M、Honeywell、强茂、台湾立隆、复旦、台湾立锜、富士通、太诱、广濑、ISOCOM、KEC、KDS、HTC、汉仁等。

主营产品：各种类IC芯片、集成电路，二极管、三极管、电阻、电容、电感、连接器、晶振、传感器、处理器及微控制器、光耦、红外、发光管、射频、滤波器、放大器、存储器、蜂鸣器、功能模块等。

企业名：深圳市锐视安科技有限公司

类型：贸易/代理/分销

电话： 0755-28570020

手机：13556864191

联系人：聂小姐 黄小姐 方先生

QQ：

微信：

邮箱：szsanx@163.com

地址：广东深圳深圳市龙岗区布吉京南华庭B幢9楼9F,柜台：福田区华强北华强电子三店3楼3C097