ZHCSDI3A September 2014 – March 2015 UCC29950
PRODUCTION DATA.
- 1 特性
- 2 應用
- 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 相關文檔
- 《采用數字輔助模擬器件實現峰值電流模式控制與平均電流模式控制相結合》；Seamus O’Driscoll，德州儀器 (TI) 和 David A. Grant，德州儀器；2014 IEEE 電力電子技術及應用國際會議暨展示會 (APEC 2014)，PP76
- TI 應用手冊《UCC29950 的 LLC 設計》（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置 ESD 保護。 存儲或裝卸時，應將導線一起截短或將裝置放置于導電泡棉中，以防止 MOS 門極遭受靜電損傷。