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参数

Device type Single-phase PFC Control method TM Operating supply (Max) (V) 18 Operating supply current (mA) 4 UVLO thresholds on/off (V) 15.8/9.7 Features OVP, Transition Mode Control Rating Catalog Operating temperature range (C) 0 to 70 open-in-new 查找其它 功率因数校正(PFC)控制器

封装|引脚|尺寸

PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 3.91 x 4.9 open-in-new 查找其它 功率因数校正(PFC)控制器

特性

  • Transition Mode PFC Controller for Low Implementation Cost
  • Industry Pin Compatibility With Improved Feature Set
  • Improved Transient Response With Slew-Rate Comparator
  • Zero Power Detect to Prevent Overvoltage Protection (OVP) During Light Load Conditions
  • Accurate Internal VREF for Tight Output Regulation
  • Two UVLO Options
  • OVP, Open-Feedback Protection, and Enable Circuits
  • ±750-mA Peak Gate Drive Current
  • Low Start-Up and Operating Currents
  • Lead (Pb)-Free Packages
open-in-new 查找其它 功率因数校正(PFC)控制器

描述

The UCC38050 and UCC38051 are PFC controllers for low-to-medium power applications requiring compliance with IEC 1000-3-2 harmonic reduction standard. The controllers are designed for a boost preregulator operating in transition mode (also referred to as boundary-conduction mode or critical conduction-mode operation). They feature a transconductance voltage amplifier for feedback error processing, a simple multiplier for generating a current command proportional to the input voltage, a current-sense (PWM) comparator, PWM logic, and a totem-pole driver for driving an external FET.

In the transition mode operation, the PWM circuit is self-oscillating, with the turnon being governed by an inductor zero-current detector (ZCD pin), and the turnoff being governed by the current-sense comparator. Additionally, the controller provides features such as peak current limit, default timer, overvoltage protection (OVP) and enable.

open-in-new 查找其它 功率因数校正(PFC)控制器
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技术文档

= 特色
未找到结果。请清除搜索,并重试。 查看所有 4
类型 标题 下载最新的英文版本 发布
* 数据表 UCC2805x, UCC3805x Transition Mode PFC Controller 数据表 2015年 5月 5日
用户指南 PR320 UCC28050 100-W PFC Ballast Pre-Regulator 2004年 8月 16日
应用手册 UCC38050 100W Critical Conduction (PFC) Reference Design 2004年 5月 3日
用户指南 100-W Universal Line Input PFC Boost Converter Using the UCC38050 2004年 2月 12日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

硬件开发

评估板 下载
UCC28051 评估模块
UCC28051EVM
document-generic 用户指南
$99.00
说明
UCC28051 Evaluation Module is a 100-W offline AC-DC voltage converter with power factor correction (PFC). The power module was designed to show how the UCC28051 could be configured in an off-line power factor corrected preregulator. The module was designed to operate over a universal input range of (...)

设计工具和仿真

计算工具 下载
用于 UCC38050 转换模式 PFC 控制器的 MathCAD 计算工具
UCC38050-CALC MathCAD application design tool for use with the UCC38050.

参考设计

参考设计 下载
PMP2614 是隔离式无光纤单级 PFC 反向。 初级侧环路关闭
PMP2614 — PMP2614 是隔离式无光纤单级 PFC 反向。初级侧环路已关闭。典型应用为 34V LED 总线电压发生器。

CAD/CAE 符号

封装 引脚 下载
PDIP (P) 8 视图选项
SOIC (D) 8 视图选项

订购与质量

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