ZHCSIB2B December 2017 – October 2019 UCC28064A
PRODUCTION DATA.
- 1 特性
- 2 應(yīng)用
- 3 說明
- 4 修訂歷史記錄
- 5 說明 （續(xù)）
- 6 Pin Configuration and Functions
- 7 Specifications
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1 Principles of Operation
- 8.3.2 Natural Interleaving
- 8.3.3 On-Time Control, Maximum Frequency Limiting, Restart Timer and Input Voltage Feed-Forward compensation
- 8.3.4 Distortion Reduction
- 8.3.5 Zero-Current Detection and Valley Switching
- 8.3.6 Phase Management and Light-Load Operation
- 8.3.7 Burst Mode Operation
- 8.3.8 External Disable
- 8.3.9 Improved Error Amplifier
- 8.3.10 Soft Start
- 8.3.11 Brownout Protection
- 8.3.12 Line Dropout Detection
- 8.3.13 VREF
- 8.3.14 VCC
- 8.3.15
System Level Protections
- 8.3.15.1 Failsafe OVP - Output Over-voltage Protection
- 8.3.15.2 Overcurrent Protection
- 8.3.15.3 Open-Loop Protection
- 8.3.15.4 VCC Undervoltage Lock-Out (UVLO) Protection
- 8.3.15.5 Phase-Fail Protection
- 8.3.15.6 CS - Open, TSET - Open and Short Protection
- 8.3.15.7 Thermal Shutdown Protection
- 8.3.15.8 Fault Logic Diagram
- 8.4 Device Functional Modes
-
9 Application and Implementation
- 9.1 Application Information
- 9.2
Typical Application
- 9.2.1 Design Requirements
- 9.2.2
Detailed Design Procedure
- 9.2.2.1 Custom Design With WEBENCH® Tools
- 9.2.2.2 Inductor Selection
- 9.2.2.3 ZCD Resistor Selection RZA, RZB
- 9.2.2.4 HVSEN
- 9.2.2.5 Output Capacitor Selection
- 9.2.2.6 Selecting RS For Peak Current Limiting
- 9.2.2.7 Power Semiconductor Selection (Q1, Q2, D1, D2)
- 9.2.2.8 Brownout Protection
- 9.2.2.9 Converter Timing
- 9.2.2.10 Programming VOUT
- 9.2.2.11 Voltage Loop Compensation
- 9.2.3 Application Curves
- 10Power Supply Recommendations
- 11Layout
- 12Package Option Addendum
- 13器件和文檔支持
- 14機(jī)械、封裝和可訂購信息
封裝選項(xiàng)
機(jī)械數(shù)據(jù) (封裝 | 引腳)
- D|16
散熱焊盤機(jī)械數(shù)據(jù) (封裝 | 引腳)
訂購信息
3 說明
與之前的同類產(chǎn)品相比，UCC28064A 交錯(cuò)式 PFC 控制器具有更高的功率額定值。該器件采用了 Natural Interleaving™ 技術(shù)。兩個(gè)通道均作為主通道運(yùn)行（即沒有從通道），而且這兩個(gè)通道同步至同一頻率。這種方法可以實(shí)現(xiàn)更快的響應(yīng)、出色的相間導(dǎo)通時(shí)間匹配以及每個(gè)通道的轉(zhuǎn)換模式。該器件具有突發(fā)模式功能，可獲得較高的輕負(fù)載效率。由于具有突發(fā)模式，因此在輕負(fù)載運(yùn)行期間無需關(guān)閉 PFC 即可實(shí)現(xiàn)待機(jī)功率目標(biāo)。而且，由于具有該模式，在與 UCC25630x LLC 控制器和 UCC24624 同步整流器控制器配對使用時(shí)，該器件無需使用輔助反激式轉(zhuǎn)換器。
器件信息(1)
| 器件型號 | 封裝 | 封裝尺寸（標(biāo)稱值） |
|---|---|---|
| UCC28064A | SOIC (16) | 9.90mm x 3.91mm |
- 如需了解所有可用封裝，請參閱數(shù)據(jù)表末尾的可訂購產(chǎn)品附錄。
