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UCC38050

正在供貨

符合 IEC61000-3-2 標(biāo)準(zhǔn)、溫度范圍為 -40°C 至 85°C、具有 15.6V/9.7V UVLO 的轉(zhuǎn)換模式 PFC 控制器

可提供此產(chǎn)品的更新版本

功能與比較器件相同，但引腳排列有所不同
UCC28051 正在供貨 符合 IEC61000-3-2 標(biāo)準(zhǔn)、溫度范圍為 -40°C 至 105°C、具有 12.5V/9.7V UVLO 的轉(zhuǎn)換模式 PFC 控制器 Wider operating temperature range

產(chǎn)品詳情

Rating Catalog Topology Boost, PFC controller Vin (max) (V) 18 Control mode TM Features Overvoltage protection, Peak current mode, Transition Control Mode, Undervoltage protection Operating temperature range (°C) 0 to 70 Duty cycle (max) (%) 99
Rating Catalog Topology Boost, PFC controller Vin (max) (V) 18 Control mode TM Features Overvoltage protection, Peak current mode, Transition Control Mode, Undervoltage protection Operating temperature range (°C) 0 to 70 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.

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類型 標(biāo)題 下載最新的英語版本 日期
* 數(shù)據(jù)表 UCC2805x, UCC3805x Transition Mode PFC Controller 數(shù)據(jù)表 (Rev. G) PDF | HTML 2015年 5月 5日

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包含信息：
  • RoHS
  • REACH
  • 器件標(biāo)識(shí)
  • 引腳鍍層/焊球材料
  • MSL 等級(jí)/回流焊峰值溫度
  • MTBF/時(shí)基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續(xù)可靠性監(jiān)測(cè)
包含信息：
  • 制造廠地點(diǎn)
  • 封裝廠地點(diǎn)

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