SLUS829G August   2008  – February 2020 UCC2897A

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
    1.     Device Images
      1.      Typical Application Diagram
  4. Revision History
  5. Device Options
  6. Pin Configuration and Functions
    1.     Pin Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Detailed Pin Descriptions
        1. 8.3.1.1  RDEL
        2. 8.3.1.2  RON
        3. 8.3.1.3  ROFF
        4. 8.3.1.4  VREF
        5. 8.3.1.5  SYNC
        6. 8.3.1.6  GND
        7. 8.3.1.7  CS
        8. 8.3.1.8  RSLOPE
        9. 8.3.1.9  FB
        10. 8.3.1.10 SS/SD
        11. 8.3.1.11 PGND
        12. 8.3.1.12 AUX
        13. 8.3.1.13 OUT
        14. 8.3.1.14 VDD
        15. 8.3.1.15 LINEUV
        16. 8.3.1.16 VIN
        17. 8.3.1.17 LINEOV
      2. 8.3.2 JFET Control and UVLO
      3. 8.3.3 Line Undervoltage Protection
      4. 8.3.4 Line Overvoltage Protection
      5. 8.3.5 Pulse Skipping
      6. 8.3.6 Synchronization
      7. 8.3.7 Gate Drive Connection
      8. 8.3.8 Bootstrap Biasing
    4. 8.4 Device Functional Modes
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Oscillator
        2. 9.2.2.2 Soft Start
        3. 9.2.2.3 VDD Bypass Requirements
        4. 9.2.2.4 Delay Programming
        5. 9.2.2.5 Input Voltage Monitoring
        6. 9.2.2.6 Current Sense and Slope Compensation
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
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订购信息

Typical Characteristics

UCC2897A UVLO_volt_thres_vs_junc_temp_SLUS829.gif
Figure 2. UVLO Voltage Thresholds vs. Junction Temperature
UCC2897A sup_curr_vs_sup_vol_SLUS829.gif
Figure 4. Supply Current vs. Supply Voltage
UCC2897A line_vol_thresh_vs_junc_temp_SLUS829.gif
Figure 6. Line UV/OV Voltage Threshold vs. Junction Temperature
UCC2897A soft_thresh_vol_vs_junc_temp_SLUS829.gif
Figure 8. Soft Start/Shutdown Threshold Voltage vs. Junction Temperature
UCC2897A osci_freq_vs_junc_temp_SLUS829.gif
Figure 10. Oscillator Frequency vs. Junction Temperature
UCC2897A curr_sen_thresh_vol_vs_junc_temp_SLUS829.gif
Figure 12. Current Sense Threshold Voltage vs. Junction Temperature
UCC2897A out_and_aux_rise_vs_junc_temp_SLUS829.gif
Figure 14. Out And AUX Rise And Fall Time vs. Junction Temperature
UCC2897A del_tim_vs_junc_temp_250_SLUS829.gif
Figure 16. Delay Time vs. Junction Temperature
UCC2897A ref_vol_vs_temp_SLUS829.gif
Figure 18. Reference Voltage vs. Temperature
UCC2897A quies_curre_vs_sup_vol_SLUS829.gif
Figure 3. Quiescent Current vs. Supply Voltage
UCC2897A startup_v_temp_SLUS829.gif
Figure 5. Typical Startup Current Available From VDD vs. Temperature
UCC2897A soft_curr_vs_temp_SLUS829.gif
Figure 7. Softstart Currents vs. Temperature
UCC2897A swi_freq_vs_pro_res_SLUS829.gif
Figure 9. Switching Frequency vs. Programming Resistance
UCC2897A max_duty_cyc_vs_junc_temp_SLUS829.gif
Figure 11. Maximum Duty Cycle vs. Junction Temperature
UCC2897A sync_thresh_vol_vs_junc_temp_SLUS829.gif
Figure 13. Synchronization Threshold Voltage vs. Junction Temperature
UCC2897A del_tim_vs_del_res_SLUS829.gif
Figure 15. Delay Time vs. Delay Resistance
UCC2897A del_tim_vs_junc_temp_800_SLUS829.gif
Figure 17. Delay Time vs. Junction Temperature