UCC38050

正在供货

符合 IEC61000-3-2 标准、温度范围为 -40°C 至 85°C、具有 15.6V/9.7V UVLO 的转换模式 PFC 控制器

可提供此产品的更新版本

open-in-new 比较替代产品
该产品会持续为现有客户提供。新设计应考虑替代产品。
功能与比较器件相同,但引脚排列有所不同
UCC28051 正在供货 符合 IEC61000-3-2 标准、温度范围为 -40°C 至 105°C、具有 12.5V/9.7V UVLO 的转换模式 PFC 控制器 Wider operating temperature range

产品详情

Vin (max) (V) 18 Operating temperature range (°C) 0 to 70 Control mode TM Topology Boost, PFC controller Rating Catalog Features Overvoltage protection, Peak current mode, Transition Control Mode, Undervoltage protection Duty cycle (max) (%) 99
Vin (max) (V) 18 Operating temperature range (°C) 0 to 70 Control mode TM Topology Boost, PFC controller Rating Catalog Features Overvoltage protection, Peak current mode, Transition Control Mode, Undervoltage protection Duty cycle (max) (%) 99
PDIP (P) 8 92.5083 mm² 9.81 x 9.43 SOIC (D) 8 29.4 mm² 4.9 x 6
  • 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
  • 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

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.

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.

下载

您可能感兴趣的相似产品

open-in-new 比较替代产品
功能与比较器件相似
UCC28056 正在供货 6 引脚高性能 CRM/DCM PFC 控制器 Lower standby, fewer pins, simpler magnetics design, improved noise immunity, and long-term supply on newer technology process

技术文档

star =有关此产品的 TI 精选热门文档
未找到结果。请清除搜索并重试。
查看全部 1
类型 标题 下载最新的英语版本 日期
* 数据表 UCC2805x, UCC3805x Transition Mode PFC Controller 数据表 (Rev. G) PDF | HTML 2015年 5月 5日

订购和质量

包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

支持和培训

视频