SLUSD69 November   2017 UCC256302

PRODUCTION DATA.  

1. 1 Features
2. 2 Applications
3. 3 Description
4. 4 Pin Configuration and Functions
5. 5 Specifications
   1. 5.1 Absolute Maximum Ratings
   2. 5.2 ESD Ratings
   3. 5.3 Recommended Operating Conditions
   4. 5.4 Thermal Information
   5. 5.5 Electrical Characteristics
   6. 5.6 Switching Characteristics
   7. 5.7 Typical Characteristics
6. 6 Detailed Description
   1. 6.1 Overview
   2. 6.2 Functional Block Diagram
   3. 6.3 Feature Description
      1. 6.3.1  Hybrid Hysteretic Control
      2. 6.3.2  Regulated 12-V Supply
      3. 6.3.3  Feedback Chain
      4. 6.3.4  Optocoupler Feedback Signal Input and Bias
      5. 6.3.5  System External Shut Down
      6. 6.3.6  Pick Lower Block and Soft Start Multiplexer
      7. 6.3.7  Pick Higher Block and Burst Mode Multiplexer
      8. 6.3.8  VCR Comparators
      9. 6.3.9  Resonant Capacitor Voltage Sensing
      10. 6.3.10 Resonant Current Sensing
      11. 6.3.11 Bulk Voltage Sensing
      12. 6.3.12 Output Voltage Sensing
      13. 6.3.13 High Voltage Gate Driver
      14. 6.3.14 Protections
          1. 6.3.14.1 ZCS Region Prevention
          2. 6.3.14.2 Over Current Protection (OCP)
          3. 6.3.14.3 Over Output Voltage Protection (VOUTOVP)
          4. 6.3.14.4 Over Input Voltage Protection (VINOVP)
          5. 6.3.14.5 Under Input Voltage Protection (VINUVP)
          6. 6.3.14.6 Boot UVLO
          7. 6.3.14.7 RVCC UVLO
          8. 6.3.14.8 Over Temperature Protection (OTP)
   4. 6.4 Device Functional Modes
      1. 6.4.1 Burst Mode Control
      2. 6.4.2 High Voltage Start-Up
      3. 6.4.3 Soft-Start and Burst-Mode Threshold
      4. 6.4.4 System States and Faults State Machine
      5. 6.4.5 Waveform Generator State Machine
7. 7 Application and Implementation
   1. 7.1 Application Information
   2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
         1. 7.2.2.1  Custom Design With WEBENCH® Tools
         2. 7.2.2.2  LLC Power Stage Requirements
         3. 7.2.2.3  LLC Gain Range
         4. 7.2.2.4  Select Ln and Qe
         5. 7.2.2.5  Determine Equivalent Load Resistance
         6. 7.2.2.6  Determine Component Parameters for LLC Resonant Circuit
         7. 7.2.2.7  LLC Primary-Side Currents
         8. 7.2.2.8  LLC Secondary-Side Currents
         9. 7.2.2.9  LLC Transformer
         10. 7.2.2.10 LLC Resonant Inductor
         11. 7.2.2.11 LLC Resonant Capacitor
         12. 7.2.2.12 LLC Primary-Side MOSFETs
         13. 7.2.2.13 Design Considerations for Adaptive Dead-Time
         14. 7.2.2.14 LLC Rectifier Diodes
         15. 7.2.2.15 LLC Output Capacitors
         16. 7.2.2.16 HV Pin Series Resistors
         17. 7.2.2.17 BLK Pin Voltage Divider
         18. 7.2.2.18 BW Pin Voltage Divider
         19. 7.2.2.19 ISNS Pin Differentiator
         20. 7.2.2.20 VCR Pin Capacitor Divider
         21. 7.2.2.21 Burst Mode Programming
         22. 7.2.2.22 Soft-Start Capacitor
      3. 7.2.3 Application Curves
8. 8 Power Supply Recommendations
   1. 8.1 VCC Pin Capacitor
   2. 8.2 Boot Capacitor
   3. 8.3 RVCC Pin Capacitor
9. 9 Layout
   1. 9.1 Layout Guidelines
   2. 9.2 Layout Example
10. 10Device and Documentation Support
    1. 10.1 Device Support
       1. 10.1.1 Development Support
          1. 10.1.1.1 Custom Design With WEBENCH® Tools
    2. 10.2 Documentation Support
       1. 10.2.1 Related Documentation
    3. 10.3 Receiving Notification of Documentation Updates
    4. 10.4 Community Resources
    5. 10.5 Trademarks
    6. 10.6 Electrostatic Discharge Caution
    7. 10.7 Glossary
11. 11Mechanical, Packaging, and Orderable Information