ZHCSDI3A September 2014 – March 2015 UCC29950
PRODUCTION DATA.
- 1 特性
- 2 應(yīng)用
- 3 說明
- 4 修訂歷史記錄
- 5 Pin Configuration and Functions
- 6 Specifications
-
7 Detailed Description
- 7.1 Overview
- 7.2 Functional Block Diagram
- 7.3
Feature Description
- 7.3.1 Sense Networks
- 7.3.2 Sense Network Fault Detection
- 7.3.3 PFC Stage Soft-Start
- 7.3.4 AC Line Voltage Sensing
- 7.3.5 VBLK Sensing
- 7.3.6 AC Input UVLO and Brownout Protection
- 7.3.7 Dither
- 7.3.8 Active X-Cap Discharge
- 7.3.9 LLC Stage Soft Start
- 7.3.10 PFC Stage Current Sensing
- 7.3.11 Input Power Limit
- 7.3.12 PFC Stage Soft Start
- 7.3.13 Hybrid PFC Control Loop
- 7.3.14 PFC Stage Second Current Limit
- 7.3.15 PFC Inductor and Bulk Capacitor Recommendations
- 7.3.16 PFC Stage Over Voltage Protection
- 7.3.17 LLC Stage Control
- 7.3.18 Driver Output Stages and Characteristic
- 7.3.19 LLC Stage Dead Time Profile
- 7.3.20 LLC Stage Current Sensing
- 7.3.21 LLC Three Level Over-Current Protection
- 7.3.22 Over-Temperature Protection
- 7.3.23 Fault Timer and Control
- 7.4 Device Functional Modes
-
8 Application and Implementation
- 8.1 Application Information
- 8.2
Typical Application
- 8.2.1 Design Requirements
- 8.2.2
Detailed Design Procedure
- 8.2.2.1 LLC Stage
- 8.2.2.2 LLC Switching Frequency
- 8.2.2.3 LLC Transformer Turns Ratio
- 8.2.2.4 LLC Stage Equivalent Load Resistance
- 8.2.2.5 LLC Gain Range
- 8.2.2.6 Select LN and QE
- 8.2.2.7 LLC No-Load Gain
- 8.2.2.8 Parameters of the LLC Resonant Circuit
- 8.2.2.9 Verify the LLC Resonant Circuit Design
- 8.2.2.10 LLC Primary-Side Currents
- 8.2.2.11 LLC Secondary-Side Currents
- 8.2.2.12 LLC Transformer
- 8.2.2.13 LLC Resonant Inductor
- 8.2.2.14 Combining the LLC Resonant Inductor and Transformer
- 8.2.2.15 LLC Resonant Capacitor
- 8.2.2.16 LLC Stage with Split Resonant Capacitor
- 8.2.2.17 LLC Primary-Side MOSFETs
- 8.2.2.18 LLC Output Rectifier Diodes
- 8.2.2.19 LLC Stage Output Capacitors
- 8.2.2.20 LLC Stage Over-Current Protection, Current Sense Resistor
- 8.2.2.21 Detailed Design Procedure for the PFC stage
- 8.2.2.22 PFC Stage Output Current Calculation
- 8.2.2.23 Line Current Calculation
- 8.2.2.24 Bridge Rectifier
- 8.2.2.25 PFC Boost Inductor
- 8.2.2.26 PFC Input Capacitor
- 8.2.2.27 PFC Stage MOSFET
- 8.2.2.28 PFC Boost Diode
- 8.2.2.29 Bulk Capacitor
- 8.2.2.30 PFC Stage Current Sense Resistor
- 8.2.3 Application Curves
- 8.3 Do's and Don'ts
- 9 Power Supply Recommendations
- 10Layout
- 11器件和文檔支持
- 12機械封裝和可訂購信息
11 器件和文檔支持
11.1 文檔支持
11.1.1 相關(guān)文檔
- 《采用數(shù)字輔助模擬器件實現(xiàn)峰值電流模式控制與平均電流模式控制相結(jié)合》；Seamus O’Driscoll，德州儀器 (TI) 和 David A. Grant，德州儀器；2014 IEEE 電力電子技術(shù)及應(yīng)用國際會議暨展示會 (APEC 2014)，PP76
- TI 應(yīng)用手冊《UCC29950 的 LLC 設(shè)計》（德州儀器 (TI) 文獻編號：SLUA733）
11.2 商標
is a registered trademark of ECOVA, INC..
All other trademarks are the property of their respective owners.
11.3 靜電放電警告
這些裝置包含有限的內(nèi)置 ESD 保護。 存儲或裝卸時，應(yīng)將導(dǎo)線一起截短或?qū)⒀b置放置于導(dǎo)電泡棉中，以防止 MOS 門極遭受靜電損傷。