ZHCSD93A january   2015  – december 2020 UCC28700-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
    1. 5.1 Pin Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings #GUID-6657BD5B-29CE-4F76-A6A3-BA4B57482A18/SLUSB418335
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics
  8. 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 CBC (Cable Compensation)
      2. 7.3.2 Fault Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Primary-Side Voltage Regulation
      2. 7.4.2 Primary-Side Current Regulation
      3. 7.4.3 Valley-Switching
      4. 7.4.4 Start-Up Operation
  9. 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 Transformer Parameter Verification
        2. 8.2.2.2 Output Capacitance
        3. 8.2.2.3 VDD Capacitance, CDD
        4. 8.2.2.4 VDD Start-Up Resistance, RSTR
        5. 8.2.2.5 VS Resistor Divider, Line Compensation, and Cable Compensation
        6. 8.2.2.6 Input Bulk Capacitance and Minimum Bulk Voltage
        7. 8.2.2.7 Transformer Turns Ratio, Inductance, Primary-Peak Current
        8. 8.2.2.8 Standby Power Estimate
      3. 8.2.3 Application Curves
  10. 9 Power Supply Recommendations
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Device Nomenclature
        1. 11.1.1.1  Capacitance Terms in Farads
        2. 11.1.1.2  Duty Cycle Terms
        3. 11.1.1.3  Frequency Terms in Hertz
        4. 11.1.1.4  Current Terms in Amperes
        5. 11.1.1.5  Current and Voltage Scaling Terms
        6. 11.1.1.6  Transformer Terms
        7. 11.1.1.7  Power Terms in Watts
        8. 11.1.1.8  Resistance Terms in Ω
        9. 11.1.1.9  Timing Terms in Seconds
        10. 11.1.1.10 Voltage Terms in Volts
        11. 11.1.1.11 AC Voltage Terms in VRMS
        12. 11.1.1.12 Efficiency Terms
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Trademarks
  13.   Mechanical, Packaging, and Orderable Information

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6.1 Absolute Maximum Ratings(1)

over operating free-air temperature range (unless otherwise noted)
MINMAXUNIT
Bias supply voltageVVDD38V
Continuous gate current sinkIDRV50mA
Continuous gate current sourceIDRVSelf-limiting
Peak VS pin currentIVS−1.2
Gate-drive voltage at DRVVDRV−0.5Self-limitingV
Voltage rangeVS−0.757
CS, CBC−0.55
Operating junction temperature rangeTJ−55150°C
Lead temperature 0.6 mm from case for 10 seconds260
Storage temperature, Tstg–65150°C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under Section 6.3 is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltages are with respect to GND. Currents are positive into, negative out of the specified terminal. These ratings apply over the operating ambient temperature ranges unless otherwise noted.
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