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UC3943数据手册集成电路(IC)的电压基准规格书PDF

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厂商型号

UC3943

参数属性

UC3943 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)的电压基准;产品描述:IC VREF SHUNT ADJ 0.39% 8SOIC

功能描述

HIGH PERFORMANCE CURRENT MODE CONTROLLERS

封装外壳

8-SOIC(0.154",3.90mm 宽)

制造商

UTC Unisonic Technologies

中文名称

友顺 友顺科技股份有限公司

数据手册

下载地址下载地址二

更新时间

2025-8-7 11:47:00

人工找货

UC3943价格和库存,欢迎联系客服免费人工找货

UC3943规格书详情

描述 Description

The UTC UC3943 is specifically designed for off-line anddc-to-dc converter applications offering the designer acost-effective solution with minimal external components.The UTC UC3943 has UVLO thresholds 8.4V (on) and7.6V(off), ideally suited for off-line converters.

特性 Features

With burstmode for lower standby power With greenmode for higher light load efficiency Oscillator frequency guaranteed at 250kHz 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 hysteresis Low startup and operating current

技术参数

  • 制造商编号

    :UC3943

  • 生产厂家

    :UTC

  • Vcc(MAX)(V)

    :30

  • Vcc(ON)(TYP)(V)

    :8.4

  • Vcc(OFF)(TYP)(V)

    :7.6

  • Freq.(TYP)(KHz)

    :-

  • Freq.(MXA)(KHz)

    :250

  • Duty Cycle%

    :96

  • Start-up current(mA)

    :0.25

  • Operatingcurrent(mA)

    :12

  • BVDSS (MIN)(V)

    :-

  • RDS(on)(MAX)(Ω)

    :-

  • Package

    :SOP-8

供应商 型号 品牌 批号 封装 库存 备注 价格
TEXAS
24+
PDIP
2659
原装正品!公司现货!欢迎来电洽谈!
询价
Unitro
25+
25000
原厂原包 深圳现货 主打品牌 假一赔百 可开票!
询价
TI
25+
PDIP (P)
6000
原厂原装,价格优势
询价
TI
24+
SOP8
2978
绝对原装自家现货!真实库存!欢迎来电!
询价
TI/德州仪器
24+
PDIP
9600
原装现货,优势供应,支持实单!
询价
TI
24+
8-PDIP
66800
原厂授权一级代理,专注汽车、医疗、工业、新能源!
询价
TI/UDIT
21+
SOP8
12588
原装正品,自己库存 假一罚十
询价
TI
25+23+
DIP8
54259
绝对原装正品现货,全新深圳原装进口现货
询价
UC
23+
DIP8
11200
原厂授权一级代理、全球订货优势渠道、可提供一站式BO
询价
TI
11+
DIP8
8000
全新原装,绝对正品现货供应
询价