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UC3843中文资料友台半导体数据手册PDF规格书

UC3843
厂商型号

UC3843

参数属性

UC3843 封装/外壳为8-SOIC(0.154",3.90mm 宽);包装为卷带(TR);类别为集成电路(IC) > DC-DC 开关控制器;产品描述:IC REG CTRLR 8SOIC

功能描述

Low Start-Up and Operating Current

文件大小

874.34 Kbytes

页面数量

7

生产厂商 UMW Rightway Semiconductor Co., Ltd.
企业简称

UMW友台半导体

中文名称

广东友台半导体有限公司(简称UMW®)官网

原厂标识
数据手册

下载地址一下载地址二原厂数据手册到原厂下载

更新时间

2024-9-26 3:35:00

UC3843规格书详情

Description

The 3842/43/44/45 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 control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current

totempole output ideally suited for driving a power MOSFET. Protection circuitry includes built undervoltage lockout and current

limiting. The 3842 and 3844 have UVLO thresholds of 16 V (on) and 10 V (off). The corresponding thresholds for the 3843/

45 are 8.4V (on) and 7.6V (off). The 3842) and 3843 can operate within 100 duty cycle. The 3844 and 3845 can operate within 50 duty

cycle.

The 384X has Start-Up Current 0.5mA (typ).

Features

Low Start-Up and Operating Current

High Current Totem Pole Output

Undervoltage Lockout With Hysteresis

Operating Frequency Up To 500KHz

产品属性

  • 产品编号:

    UC3843AD

  • 制造商:

    onsemi

  • 类别:

    集成电路(IC) > DC-DC 开关控制器

  • 包装:

    卷带(TR)

  • 输出类型:

    晶体管驱动器

  • 功能:

    升压,升压/降压

  • 输出配置:

    正,可提供隔离

  • 拓扑:

    反激,升压

  • 输出阶段:

    1

  • 电压 - 供电 (Vcc/Vdd):

    7.6V ~ 30V

  • 频率 - 开关:

    最高 500kHz

  • 占空比(最大):

    96%

  • 同步整流器:

  • 时钟同步:

  • 控制特性:

    频率控制

  • 工作温度:

    0°C ~ 70°C(TA)

  • 安装类型:

    表面贴装型

  • 封装/外壳:

    8-SOIC(0.154",3.90mm 宽)

  • 供应商器件封装:

    8-SOIC

  • 描述:

    IC REG CTRLR 8SOIC

供应商 型号 品牌 批号 封装 库存 备注 价格
ST
22
DIP8
25000
3月31原装,微信报价
询价
ON
23+
DIP
20000
全新原装假一赔十
询价
ON
2018+
SOP8
6000
全新原装正品现货,假一赔佰
询价
ON/安森美
22+
SOP-8
100000
代理渠道/只做原装/可含税
询价
ON
11+
SOP8
2000
原装现货价格有优势量多可发货
询价
ON
20+
DIP
26580
全新原装长期特价销售
询价
DP
1926+
SOP-8
6852
只做原装正品现货!或订货假一赔十!
询价
ON
2018+
SO-8
30000
一级代理进口原装现货假一赔十
询价
DLZ
22+
SOP-8
354000
询价
ST
99+
DIP8
47
询价