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参数

Device type Flyback Control method Current Operating supply (Max) (V) 18 Operating supply current (mA) 4 UVLO thresholds on/off (V) 15.8 / 9.7 Features Soft Start Rating Catalog Operating temperature range (C) -40 to 105 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) 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 Controller for Low Implementation Cost of AC Input LED Lighting Applications
  • Implements Single Stage Power Factor Corrected LED Driver
  • Enhanced Transient Response With Slew-Rate Comparator
  • Interfaces with Traditional Wall Dimmers
  • Accurate Internal VREF for Tight Output Regulation
  • Two UVLO Options
  • Overvoltage Protection (OVP), Open-Feedback Protection and Enable Circuits
  • ±750-mA Peak Gate Drive Current
  • Low Start-Up and Operating Currents
  • Lead (Pb)-Free Packages
  • APPLICATIONS
    • AC Input General Lighting Applications Using HB LEDs
    • Industrial, Commercial and Residential Lighting Fixtures
    • Outdoor Lighting: Street, Roadway, Parking, Construction and Ornamental LED Lighting Fixtures

All trademarks are the property of their respective owners.

open-in-new 查找其它 功率因数校正(PFC)控制器

描述

The UCC28810 and UCC28811 are general lighting power controllers for low to medium power lumens applications requiring power factor correction and EMC compliance. It is designed for controlling a flyback, buck or boost converter operating in critical conduction mode. It features a transconductance voltage amplifier for feedback error processing, a simple current reference generator 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 critical conduction mode operation, the PWM circuit is self-oscillating with the turn-on being governed by a transformer zero energy detector (TZE pin) and the turn-off being governed by the current sense comparator. Additionally, the controller provides features such as peak current limit, restart timer, overvoltage protection (OVP), and enable.

The efficient system performance is attained by incorporation of zero power detect function which allows the controller output to shut down at light load conditions without running into overvoltage. The device also features an innovative slew rate enhancement circuit which improves the large signal transient performance of the voltage error amplifier. The low start-up and operating currents of the device result in low power consumption and ease of start-up. The highly-accurate internal bandgap reference leads to tight regulation of the output voltage in normal and OVP conditions, resulting in higher system reliability. The enable comparator ensures that the controller is off if the feedback sense path is broken or if the input voltage is very low.

There are two key parametric differences between UCC28810 and UCC28811, the UVLO turn-on threshold and the gM amplifier source current. The UVLO turn-on threshold of the UCC28810 is 15.8 V and for the UCC28811 it is 12.5 V. The gM amplifier source current for UCC28810 is typically 1.3 mA, and for the UCC28811 it is 300µA. The higher UVLO turn-on threshold of the UCC28810 allows quicker and easier start-up with a smaller VDD capacitance while the lower UVLO turn-on threshold of UCC28811 allows operation of the critical conduction mode controller to be easily controlled by the downstream PWM controller in two-stage power converters. The UCC28810 gM amplifier also provides a full 1.3-mA typical source current for faster start-up and improved transient response when the output is low either at start-up or during transient conditions. The UCC28811 is suitable for applications such as street lights and larger area luminaires where a two-stage power conversion is needed. The UCC28810 is suitable for applications such as commercial or residential retrofit luminaires where there is no down-stream PWM conversion and the advantages of smaller VDD capacitor and improved transient response can be realized.

Devices are available in the industrial temperature range of –40°C to 105°C. Package offering is an 8-pin SOIC (D) package.

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 LED Lighting Power Controller 数据表 2008年 10月 22日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
应用手册 DRV10983 and DRV10975 Tuning Guide 2016年 8月 11日
应用手册 Isolated 70-W Streetlight LED Driver Using UCC28810 2015年 8月 14日
用户指南 用于 T8/T10 荧光投影灯更换的 19W 单级 AC/DC LED 驱动器 下载英文版本 2011年 5月 23日
用户指南 UCC28810EVM-003 110W Multiple String LED Driver with Universal Line Input and PF (Rev. B) 2010年 10月 1日
用户指南 Isolated 240W Offline LED Driver Reference Design Using UCC28810, UCC28811, and 2010年 6月 10日
用户指南 Non-Isolated 240W Offline LED Driver Using UCC28810, and UCC28811 2010年 6月 9日
用户指南 Using the UCC28810EVM-00, 25-W PFC Flyback LED Converter (Rev. B) 2009年 6月 18日
用户指南 Using the UCC28810EVM-002 A 0.9-A Constant Current Supply with PFC for 100-W LED (Rev. A) 2009年 6月 18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
99
说明

UCC28810EVM-003 是一款具有功率因数校正功能的 110W 离线式 AC-to-DC LED 电流驱动器。此设计采用三个阶段方法(具有通用输入升压 PFC 阶段和低侧降压阶段),提供了受控制的电流源和半桥接 DC 转换阶段,可以为 4 个 LED 灯串提供隔离。

特性
  • 90VRMS 至 265VRMS 操作
  • 升压跟随器或固定输出 PFC 级
  • PFC 禁用
  • 输出电流禁用
  • 外部或内部 PWM 明暗调节
  • 输出与线路输入隔离
  • 开路保护(如果某个 LED 灯串无法打开,其它灯串仍将亮起。)

设计工具和仿真

计算工具 下载
SLUC204A.ZIP (180 KB)
计算工具 下载
SLUC205.ZIP (212 KB)
原理图 下载
SLVR372.PDF (58 KB)

参考设计

很多TI参考设计会包含 UCC28810 。 通过我们的参考设计选择工具来审查并确定最适用于您应用和参数的设计。

CAD/CAE 符号

封装 引脚 下载
SOIC (D) 8 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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