TI,TI公司,TI代理商
TI(德州仪器)| TI产品型号搜索
专营TI元器件,强大的现货交付能力,解决您的采购难题
全流程提供TI现货供应链服务
当前位置:TI公司 > > TI芯片 >> UCC2819A
UCC2819A技术文档下载:
UCC2819A技术文档产品手册下载
UCC2819A - 产品图解:
UCC2819A-BiCMOS 功率因子前置稳压器
承诺原装正品
专营TI,真正优化您的供应链
TI产品 - UCC2819A介绍
UCC2819A - BiCMOS 功率因子前置稳压器

UCC2819A是TI公司的一款功率因数校正产品,UCC2819A是BiCMOS 功率因子前置稳压器,本页介绍了UCC2819A的产品说明、应用、特性等,并给出了与UCC2819A相关的TI元器件型号供参考。

UCC2819A - BiCMOS 功率因子前置稳压器 - 功率因数校正 - 离线隔离型DC/DC控制器和转换器 - TI公司(Texas Instruments,德州仪器)

产品描述

The UCC2819A/UCC3819A provides all the functions necessary for active power factor corrected preregulators. The controller achieves near unity power factor by shaping the ac-input line current waveform to correspond to that of the ac-input line voltage. Average current mode control maintains stable, low distortion sinusoidal line current.

Designed in Texas Instrument’s BiCMOS process, the UCC3819A offers new features such as lower start-up current, lower power dissipation, overvoltage protection, a shunt UVLO detect circuitry and a leading-edge modulation technique to reduce ripple current in the bulk capacitor.

The UCC3819A allows the output voltage to be programmed by bringing out the error amplifier noninverting input.

The UCC3819A is directly pin for pin compatible with the UCC3819. Only the output stage of UCC3819A has been modified to allow use of a smaller external gate drive resistor values. For some power supply designs where an adequately high enough gate drive resistor can not be used, the UCC3819A offers a more robust output stage at the cost of increasing the internal gate resistances. The gate drive of the UCC3819A remains strong at ±1.2 A of peak current capability.

Available in the 16-pin D, N, and PW packages.

产品特性

  • Controls Boost Preregulator to Near-Unity Power Factor
  • World Wide Line Operation
  • Over-Voltage Protection
  • Accurate Power Limiting
  • Average Current Mode Control
  • Improved Noise Immunity
  • Improved Feed-Forward Line Regulation
  • Leading Edge Modulation
  • 150-µA Typical Start-Up Current
  • Low-Power BiCMOS Operation
  • 10.8-V to 17-V Operation
  • Programmable Output Voltage (Tracking Boost Topology)

下面可能是您感兴趣的TI公司功率因数校正元器件
  • TPS2224 - 具有串行接口且采用 24 引脚封装的 1A 双槽位 PC 卡电源开关
  • ISO121 - 精密低成本隔离放大器
  • LM57-Q1 - 具有电阻可编程温度开关的汽车类温度传感器
  • CD54HC688 - 高速 CMOS 逻辑 8 位幅度比较器
  • TPS7A4001-DIE - 超高压线性稳压器
  • DAC1280 - 用于地震应用的极低失真数模转换器
  • LP38798 - 用于 RF/An 的 LP38798-ADJ Hi PSRR 超低噪声 800mA 低输入电压稳压器
  • LM4312 - Mobile Pixel Link Two (MPL-2), RGB Display Differential Interface Serializer with Optional Ditherin
  • LM49251 - 具有 G 类耳机放大器和 D 类扬声器放大器(带扬声器保护)的立体声音频子系统
  • SN74AVCBH324245 - 具有可配置电压转换和 3 态输出的 32 位双电源总线收发器
  • 节约时间成本,提高采购效率,TI官网授权代理
    TI公司|TI德州仪器|德州仪器TI公司代理商|TI芯片代理商
    TI公司产品现货专家,订购TI公司产品不限最低起订量,TI产品大陆现货即时发货,香港库存3-5天发货,海外库存7-10天发货
    寻找全球TI代理商现货货源 - TI公司(德州仪器)电子元件在线订购