ZHCSEQ1A February   2016  – February 2016 UCC28704

PRODUCTION DATA.  

1. 1 特性
2. 2 应用
3. 3 说明
4. 4 修订历史记录
5. 5 Pin Configuration and Functions
6. 6 Specifications
   1. 6.1 Absolute Maximum Ratings
   2. 6.2 ESD Ratings
   3. 6.3 Recommended Operating Conditions
   4. 6.4 Thermal Information
   5. 6.5 Electrical Characteristics
   6. 6.6 Typical Characteristics
7. 7 Detailed Description
   1. 7.1 Overview
   2. 7.2 Functional Block Diagram
   3. 7.3 Feature Description
      1. 7.3.1 Detailed Pin Description
         1. 7.3.1.1 VDD (Device Bias Voltage Supply)
         2. 7.3.1.2 GND (Ground)
         3. 7.3.1.3 VS (Voltage-Sense)
         4. 7.3.1.4 DRV (Gate Drive)
         5. 7.3.1.5 CS (Current Sense)
         6. 7.3.1.6 NTC/SU (NTC Thermistor Shutdown and External Start Up Control)
      2. 7.3.2 Primary-Side Regulation (PSR)
      3. 7.3.3 Primary-Side Constant Voltage (CV) Regulation
      4. 7.3.4 Primary-Side Constant Current (CC) Regulation
      5. 7.3.5 Valley-Switching and Valley-Skipping
      6. 7.3.6 Start-Up Operation
         1. 7.3.6.1 Initial Power-On with a Start-Up Resistor
         2. 7.3.6.2 Initial Power-On with A Depletion-Mode FET
      7. 7.3.7 Fault Protection
      8. 7.3.8 Constant Current Under-Voltage Protection
      9. 7.3.9 Load Transient Response
   4. 7.4 Device Functional Modes
8. 8 Applications and Implementation
   1. 8.1 Application Information
   2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
         1. 8.2.2.1 VDD Capacitance, CDD
         2. 8.2.2.2 VDD Start-Up Resistance, RSTR
         3. 8.2.2.3 Input Bulk Capacitance and Minimum Bulk Voltage
         4. 8.2.2.4 Transformer Turns Ratio, Inductance, Primary-Peak Current
         5. 8.2.2.5 Transformer Parameter Verification
         6. 8.2.2.6 VS Resistor Divider, Line Compensation, and NTC
         7. 8.2.2.7 Standby Power Estimate
         8. 8.2.2.8 Output Capacitance
         9. 8.2.2.9 Design Considerations in Using with Synchronous Rectifiers
      3. 8.2.3 Application Curves
   3. 8.3 Do's and Don'ts
9. 9 Power Supply Recommendations
10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
11. 11器件和文档支持
    1. 11.1 器件支持
       1. 11.1.1 器件命名规则
          1. 11.1.1.1  电容术语（以法拉为单位）
          2. 11.1.1.2  占空比术语
          3. 11.1.1.3  频率术语（以赫兹为单位）
          4. 11.1.1.4  电流术语（以安培为单位）
          5. 11.1.1.5  电流和电压调节术语
          6. 11.1.1.6  变压器术语
          7. 11.1.1.7  功率术语（以瓦特为单位）
          8. 11.1.1.8  电阻术语（以 Ω 为单位）
          9. 11.1.1.9  时序术语（以秒为单位）
          10. 11.1.1.10 电压术语（以伏特为单位）
          11. 11.1.1.11 交流电压术语（以 VRMS 为单位）
          12. 11.1.1.12 效率术语
    2. 11.2 文档支持
       1. 11.2.1 相关文档　
    3. 11.3 社区资源
    4. 11.4 商标
    5. 11.5 静电放电警告
    6. 11.6 Glossary
12. 12机械、封装和可订购信息