SLUSA29D April   2010  – August 2015 UCC28250

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  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  VDD (5/12)
      2. 7.3.2  VREF (Reference Generator) (20/7)
      3. 7.3.3  EN (Enable Pin) (18/5)
      4. 7.3.4  RT (Oscillator Frequency Set and Synchronization) (15/2)
      5. 7.3.5  SP (Synchronous Rectifier Turnoff to Primary Output Turnon Dead Time Programming) (13/19)
      6. 7.3.6  PS (Primary Output Turnoff to Synchronous Rectifier Turnon Dead Time Programming) (11/18)
      7. 7.3.7  RAMP/CS (PWM Ramp Input or Current Sense Input) (16/3)
        1. 7.3.7.1 RAMP: Voltage Mode Control With Feed-Forward Operation
        2. 7.3.7.2 CS: Current Mode Control
      8. 7.3.8  REF/EA+ (1/8)
      9. 7.3.9  FB/EA- (2/9)
      10. 7.3.10 COMP (3/10)
      11. 7.3.11 VSENSE (14/1)
      12. 7.3.12 SS (Soft Start Programming Pin) (13/20)
      13. 7.3.13 ILIM (Current Limit for Cycle-By-Cycle Overcurrent Protection) (17/4)
      14. 7.3.14 HICC (10/17)
      15. 7.3.15 OVP/OTP (19/6)
      16. 7.3.16 OUTA (9/16) and OUTB (8/15)
      17. 7.3.17 SRA (7/14) and SRB (6/13)
      18. 7.3.18 GND (4/11)
    4. 7.4 Device Functional Modes
  8. 8 Applications and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Error Amplifier and PWM Generation
      2. 8.1.2 Prebiased Start-Up
        1. 8.1.2.1 Secondary-Side Control
        2. 8.1.2.2 Primary-Side Control
        3. 8.1.2.3 Voltage Mode Control and Input Voltage Feed-Forward
          1. 8.1.2.3.1 Condition 1
          2. 8.1.2.3.2 Condition 2
          3. 8.1.2.3.3 Condition 3
        4. 8.1.2.4 Peak Current Mode Control
        5. 8.1.2.5 Cycle-by-Cycle Current Limit and Hiccup Mode Protection
    2. 8.2 Typical Applications
      1. 8.2.1 Design Example
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Step 1, Power Stage Design
          2. 8.2.1.2.2 Step 2, Feedback Loop Design
          3. 8.2.1.2.3 Step 3, Programming the Device
            1. 8.2.1.2.3.1 Step 3-1
            2. 8.2.1.2.3.2 Step 3-2, Determine RAMP Resistance and Capacitance
          4. 8.2.1.2.4 Step 3-3, Determine Soft-Start Capacitance
          5. 8.2.1.2.5 Step 3-4, Determine Dead-Time Resistance
          6. 8.2.1.2.6 Step 3-5, Determine OCP Hiccup Off-Time Capacitance
          7. 8.2.1.2.7 Step 3-6, Determine Primary-Side OVP Resistance
          8. 8.2.1.2.8 Step 3-7, Select Capacitance for VDD and VREF
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Secondary-Side Half-Bridge Controller with Synchronous Rectification
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Thermal Protection
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

4 Revision History

Changes from C Revision (July 2011) to D Revision

  • Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section Go

Changes from B Revision (October 2010) to C Revision

  • Changed Operating junction temperature range from (-40 to 125) to (125 to 150).Go
  • Changed Functional Block DiagramGo

Changes from A Revision (April, 2010) to B Revision

  • Added note, "The minimum value for RPS/RSP is 5 kΩ and the maximum value is 250 kΩ." in two places.Go
千亿体育app官网登录(中国)官方网站IOS/安卓通用版/手机APP | 米乐app下载官网（中国）|ios|Android/通用版APP最新版 | 米乐|米乐·M6（中国大陆）官方网站 | 千亿体育登陆地址 | 华体会体育（中国）HTH·官方网站 | 千赢qy国际_全站最新版千赢qy国际V6.2.14安卓/IOS下载 | 18新利网v1.2.5|中国官方网站 | bob电竞真人（中国官网）安卓/ios苹果/电脑版【1.97.95版下载】 | 千亿体育app官方下载(中国)官方网站IOS/安卓/手机APP下载安装 |