主頁(yè) 電源管理 交流/直流和直流/直流控制器（外部 FET）

UCC38051

正在供貨

符合 IEC61000-3-2 標(biāo)準(zhǔn)、溫度范圍為 0°C 至 70°C、具有 12.5V/9.7V UVLO 的轉(zhuǎn)換模式 PFC 控制器

產(chǎn)品詳情

Rating Catalog Topology Boost, PFC controller Vin (max) (V) 18 Control mode TM Features < 150 W applications, < 150W Applications, > 750 W applications, > 750W Applications, Average current mode, Continuous Control Mode, Enable, OVP, Overvoltage 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 < 150 W applications, < 150W Applications, > 750 W applications, > 750W Applications, Average current mode, Continuous Control Mode, Enable, OVP, Overvoltage protection Operating temperature range (°C) 0 to 70 Duty cycle (max) (%) 99
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.

下載

您可能感興趣的相似產(chǎn)品

功能與比較器件相似
UCC28056 正在供貨 6 引腳高性能 CRM/DCM PFC 控制器 Lower standby, fewer pins, simpler magnetics design, improved noise immunity, and long-term supply on newer technology process

技術(shù)文檔

star =有關(guān)此產(chǎn)品的 TI 精選熱門(mén)文檔
未找到結(jié)果。請(qǐng)清除搜索并重試。
查看全部 1
類型 標(biāo)題 下載最新的英語(yǔ)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

訂購(gòu)和質(zhì)量

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)

支持和培訓(xùn)

可獲得 TI 工程師技術(shù)支持的 TI E2E? 論壇

所有內(nèi)容均由 TI 和社區(qū)貢獻(xiàn)者按“原樣”提供，并不構(gòu)成 TI 規(guī)范。請(qǐng)參閱使用條款。

如果您對(duì)質(zhì)量、包裝或訂購(gòu) TI 產(chǎn)品有疑問(wèn)，請(qǐng)參閱 TI 支持。??????????????