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参数

Device type Interleaved PFC Control method TM Operating supply (Max) (V) 21 Operating supply current (mA) 5 UVLO thresholds on/off (V) 10.35/9.6 Features < 150W Applications, > 750W Applications, Audible noise minimization circuitry, Brown Out, Burst mode for no load regualtion, Enable, Feed-forward correction for near unity PF, Interleaved, Leading Edge Blanking, OVP, Soft Start, Transition Mode Control Rating Catalog Operating temperature range (C) -40 to 125 open-in-new 查找其它 功率因数校正(PFC)控制器

封装|引脚|尺寸

SOIC (D) 16 59 mm² 9.9 x 6 open-in-new 查找其它 功率因数校正(PFC)控制器

特性

  • Input filter and output capacitor ripple-current reduction
    • Reduced current ripple for higher system reliability and smaller bulk capacitor
    • Reduced EMI filter size
  • Higher switching frequency support
    • Up-to 800-kHz switching frequency, reducing boost inductor size to at least one-half in size
    • Improved input-current THD
  • High light-load efficiency
    • User adjustable phase management with input voltage compensation
    • Burst mode operation with adjustable burst threshold
    • Helps enable compliance to EUP Lot6 tier II, CoC tier II and DOE Level VI standards
  • Sensorless current-shaping simplifies board layout and improves efficiency
  • Input line feed-forward for fast line transient response
  • Inrush-safe current limiting:
    • Prevents MOSFET conduction during inrush
    • Eliminates CCM operation and reverse recovery events in output rectifier

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open-in-new 查找其它 功率因数校正(PFC)控制器

描述

The UCC28065 interleaved PFC controller enables transition mode PFC at higher power ratings than previously possible. The device uses a Natural Interleaving™ technique to maintain a 180-degree phase shift. Both channels operate as masters (there is no slave channel) synchronized to the same frequency. This approach enables faster response time, accurate phase shift, and transition mode operation for each channel. The device has a burst mode function to get high light-load efficiency. Burst mode eliminates the need to turn off the PFC during light load operation to meet standby power targets, eliminating the need for an auxiliary Flyback when paired with UCC25640x LLC controller and the UCC24612 or UCC24624 synchronous rectifier controllers. The increased frequency clamping doubles the switching frequency capability compared with previous generation devices. The increased switching frequency range also allows the design to fully utilize the benefits of GaN MOSFETs such as LMG3410 and SiC MOSFETs.

Expanded system level protections features include input brownout and dropout recovery, output over-voltage, open-loop, overload, soft-start, phase-fail detection, and thermal shutdown. The additional fail-safe over-voltage protection (OVP) feature protects against shorts to an intermediate voltage that, if undetected, could lead to catastrophic device failure. Advanced non-linear gain results in rapid, yet smooth response to line and load transient events. Special line-dropout handling avoids significant current disruption. Strong reduction of bias current when not switching during burst mode operation, improves stand-by performance.

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

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类型 标题 下载最新的英文版本 日期
* 数据表 UCC28065 Natural Interleaving™ Transition-Mode PFC Controller with High Light-Load Efficiency Supporting High-Frequency Switching up-to 800 kHz 数据表 (Rev. B) 2020年 5月 19日
应用手册 Upgrade UCC28064A to Higher Switching Frequency Using UCC28065 2020年 6月 4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
document-generic 用户指南
149
说明
该前置稳压器使用 UCC28064 转换模式交错式 PFC 控制器使输入电流波成形,以提供功率因数校正功能。此器件可提供高功率级别下的交错双相运行、较低功率级别下的单相运行以及极低功率级别下的突发模式运行。用户指南提供了典型应用的原理图、BOM、电气规格以及测试结果。
特性
  • 交错转换模式 PFC 适用于高功率应用
  • 单相运行可在中等功率级别下获得高效率
  • 突发模式可在极低功率级别下获得高效率
  • 线电压前馈适用于快速线路瞬态响应
  • 非线性放大器增益适用于快速动态响应。

软件开发

支持软件 下载
SLUC697.ZIP (84 KB)

设计工具和仿真

仿真模型 下载
SLUM726.ZIP (347 KB) - SIMPLIS Model

CAD/CAE 符号

封装 引脚 下载
SOIC (D) 16 了解详情

订购与质量

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/FIT 估算
  • 材料成分
  • 认证摘要
  • 持续可靠性监测

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