SLUSEM9A September   2022  – June 2024 UCC21755-Q1

PRODUCTION DATA  

  1.   1
  2. Features
  3. Applications
  4. Description
  5. Pin Configuration and Functions
  6. 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  Power Ratings
    6. 5.6  Insulation Specifications
    7. 5.7  Safety Limiting Values
    8. 5.8  Electrical Characteristics
    9. 5.9  Switching Characteristics
    10. 5.10 Insulation Characteristics Curves
    11. 5.11 Typical Characteristics
  7. Parameter Measurement Information
    1. 6.1 Propagation Delay
      1. 6.1.1 Non-Inverting and Inverting Propagation Delay
    2. 6.2 Input Deglitch Filter
    3. 6.3 Active Miller Clamp
      1. 6.3.1 Internal On-Chip Active Miller Clamp
    4. 6.4 Undervoltage Lockout (UVLO)
      1. 6.4.1 VCC UVLO
      2. 6.4.2 VDD UVLO
    5. 6.5 Desaturation (DESAT) Protection
      1. 6.5.1 DESAT Protection with Soft Turn-OFF
  8. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Power Supply
      2. 7.3.2  Driver Stage
      3. 7.3.3  VCC and VDD Undervoltage Lockout (UVLO)
      4. 7.3.4  Active Pulldown
      5. 7.3.5  Short Circuit Clamping
      6. 7.3.6  Internal Active Miller Clamp
      7. 7.3.7  Desaturation (DESAT) Protection
      8. 7.3.8  Soft Turn-Off
      9. 7.3.9  Fault (FLT), Reset and Enable (RST/EN)
      10. 7.3.10 Isolated Analog to PWM Signal Function
    4. 7.4 Device Functional Modes
  9. 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 Input Filters for IN+, IN-, and RST/EN
        2. 8.2.2.2 PWM Interlock of IN+ and IN-
        3. 8.2.2.3 FLT, RDY, and RST/EN Pin Circuitry
        4. 8.2.2.4 RST/EN Pin Control
        5. 8.2.2.5 Turn-On and Turn-Off Gate Resistors
        6. 8.2.2.6 Overcurrent and Short Circuit Protection
        7. 8.2.2.7 Isolated Analog Signal Sensing
          1. 8.2.2.7.1 Isolated Temperature Sensing
          2. 8.2.2.7.2 Isolated DC Bus Voltage Sensing
        8. 8.2.2.8 Higher Output Current Using an External Current Buffer
      3. 8.2.3 Application Curves
  10. 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 Third-Party Products Disclaimer
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Support Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information

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Typical Characteristics

UCC21755-Q1 Output High
            Drive Current vs TemperatureFigure 5-4 Output High Drive Current vs Temperature
UCC21755-Q1 IVCCQ Supply Current vs Temperature
IN+ = High IN- = Low
Figure 5-6 IVCCQ Supply Current vs Temperature
UCC21755-Q1 IVCCQ Supply Current vs Input Frequency
Figure 5-8 IVCCQ Supply Current vs Input Frequency
UCC21755-Q1 IVDDQ Supply Current vs Temperature
IN+ = Low IN- = Low
Figure 5-10 IVDDQ Supply Current vs Temperature
UCC21755-Q1 VCC UVLO vs
            TemperatureFigure 5-12 VCC UVLO vs Temperature
UCC21755-Q1 Propagation
            Delay tPDLH vs Temperature
VCC = 3.3V VDD=18V CL = 100pF
RON = 0Ω ROFF = 0Ω
Figure 5-14 Propagation Delay tPDLH vs Temperature
UCC21755-Q1 tr
            Rise Time vs Temperature
VCC = 3.3 V VDD=18 V CL = 10 nF
RON = 0 Ω ROFF = 0 Ω
Figure 5-16 tr Rise Time vs Temperature
UCC21755-Q1 VOUTPD Output Active Pulldown Voltage vs TemperatureFigure 5-18 VOUTPD Output Active Pulldown Voltage vs Temperature
UCC21755-Q1 VCLP-OUT(L) Short Circuit Clamping Voltage vs TemperatureFigure 5-20 VCLP-OUT(L) Short Circuit Clamping Voltage vs Temperature
UCC21755-Q1 ICLMPI Miller Clamp Sink Current vs TemperatureFigure 5-22 ICLMPI Miller Clamp Sink Current vs Temperature
UCC21755-Q1 tDESATLEB DESAT Leading Edge Blanking Time vs TemperatureFigure 5-24 tDESATLEB DESAT Leading Edge Blanking Time vs Temperature
UCC21755-Q1 tDESATFLT DESAT Sense to /FLT Low Delay Time vs TemperatureFigure 5-26 tDESATFLT DESAT Sense to /FLT Low Delay Time vs Temperature
UCC21755-Q1 ICHG
            DESAT Charging Current vs TemperatureFigure 5-28 ICHG DESAT Charging Current vs Temperature
UCC21755-Q1 Output Low
            Driver Current vs TemperatureFigure 5-5 Output Low Driver Current vs Temperature
UCC21755-Q1 IVCCQ Supply Current vs Temperature
IN+ = Low IN- = Low
Figure 5-7 IVCCQ Supply Current vs Temperature
UCC21755-Q1 IVDDQ Supply Current vs Temperature
IN+ = High IN- = Low
Figure 5-9 IVDDQ Supply Current vs Temperature
UCC21755-Q1 IVDDQ Supply Current vs Input Frequency
Figure 5-11 IVDDQ Supply Current vs Input Frequency
UCC21755-Q1 VDD UVLO vs
            TemperatureFigure 5-13 VDD UVLO vs Temperature
UCC21755-Q1 Propagation
            Delay tPDHL vs Temperature
VCC = 3.3 V VDD=18 V CL = 100 pF
RON = 0 Ω ROFF = 0 Ω
Figure 5-15 Propagation Delay tPDHL vs Temperature
UCC21755-Q1 tf
            Fall Time vs Temperature
VCC = 3.3 V VDD=18 V CL = 10 nF
RON = 0 Ω ROFF = 0 Ω
Figure 5-17 tf Fall Time vs Temperature
UCC21755-Q1 VCLP-OUT(H) Short Circuit Clamping Voltage vs TemperatureFigure 5-19 VCLP-OUT(H) Short Circuit Clamping Voltage vs Temperature
UCC21755-Q1 VCLMPTH Miller Clamp Threshold Voltage vs TemperatureFigure 5-21 VCLMPTH Miller Clamp Threshold Voltage vs Temperature
UCC21755-Q1 tDCLMPI Miller Clamp ON Delay Time vs TemperatureFigure 5-23 tDCLMPI Miller Clamp ON Delay Time vs Temperature
UCC21755-Q1 tDESATOFF DESAT Propagation Delay to OUT(L) 90% vs TemperatureFigure 5-25 tDESATOFF DESAT Propagation Delay to OUT(L) 90% vs Temperature
UCC21755-Q1 tDESATFIL DESAT Deglitch Filter vs TemperatureFigure 5-27 tDESATFIL DESAT Deglitch Filter vs Temperature
UCC21755-Q1 IDCHG DESAT Discharge Current vs TemperatureFigure 5-29 IDCHG DESAT Discharge Current vs Temperature