SLUSFY3 December   2025 UCC21751-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-Related Certifications
    8. 5.8  Safety Limiting Values
    9. 5.9  Electrical Characteristics
    10. 5.10 Switching Characteristics
    11. 5.11 Insulation Characteristics Curves
    12. 5.12 Typical Characteristics
  7. Parameter Measurement Information
    1. 6.1 Propagation Delay
      1. 6.1.1 Regular Turn-OFF
    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
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. Device and Documentation Support
    1. 9.1 Third-Party Products Disclaimer
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • DW|16
散热焊盘机械数据 (封装 | 引脚)
订购信息

Typical Characteristics

UCC21751-Q1 Output High Drive Current
                        vs TemperatureFigure 5-4 Output High Drive Current vs Temperature
UCC21751-Q1 IVCCQ Supply Current vs Temperature
IN+ = HighIN- = Low
Figure 5-6 IVCCQ Supply Current vs Temperature
UCC21751-Q1 IVCCQ Supply Current vs Input Frequency
Figure 5-8 IVCCQ Supply Current vs Input Frequency
UCC21751-Q1 IVDDQ Supply Current vs Temperature
IN+ = LowIN- = Low
Figure 5-10 IVDDQ Supply Current vs Temperature
UCC21751-Q1 VCC
                        UVLO vs TemperatureFigure 5-12 VCC UVLO vs Temperature
UCC21751-Q1 Propagation Delay tPDLH vs Temperature
VCC = 3.3VVDD=18VCL = 100pF
RON = 0ΩROFF = 0Ω
Figure 5-14 Propagation Delay tPDLH vs Temperature
UCC21751-Q1 tr Rise Time vs Temperature
VCC = 3.3VVDD=18VCL = 10nF
RON = 0ΩROFF = 0Ω
Figure 5-16 tr Rise Time vs Temperature
UCC21751-Q1 VOUTPD Output Active Pulldown Voltage vs TemperatureFigure 5-18 VOUTPD Output Active Pulldown Voltage vs Temperature
UCC21751-Q1 VCLP-OUT(L) Short Circuit Clamping Voltage vs
                        TemperatureFigure 5-20 VCLP-OUT(L) Short Circuit Clamping Voltage vs Temperature
UCC21751-Q1 ICLMPI Miller Clamp Sink Current vs TemperatureFigure 5-22 ICLMPI Miller Clamp Sink Current vs Temperature
UCC21751-Q1 VDESAT DESAT Threshold Voltage vs TemperatureFigure 5-24 VDESAT DESAT Threshold Voltage vs Temperature
UCC21751-Q1 tDESATOFF DESAT Propagation Delay to OUT(L) 90% vs
                        TemperatureFigure 5-26 tDESATOFF DESAT Propagation Delay to OUT(L) 90% vs Temperature
UCC21751-Q1 ICHG DESAT Charging Current vs TemperatureFigure 5-28 ICHG DESAT Charging Current vs Temperature
UCC21751-Q1 Output Low Driver Current
                        vs TemperatureFigure 5-5 Output Low Driver Current vs Temperature
UCC21751-Q1 IVCCQ Supply Current vs Temperature
IN+ = LowIN- = Low
Figure 5-7 IVCCQ Supply Current vs Temperature
UCC21751-Q1 IVDDQ Supply Current vs Temperature
IN+ = HighIN- = Low
Figure 5-9 IVDDQ Supply Current vs Temperature
UCC21751-Q1 IVDDQ Supply Current vs Input Frequency
Figure 5-11 IVDDQ Supply Current vs Input Frequency
UCC21751-Q1 VDD
                        UVLO vs TemperatureFigure 5-13 VDD UVLO vs Temperature
UCC21751-Q1 Propagation Delay tPDHL vs Temperature
VCC = 3.3VVDD=18VCL = 100pF
RON = 0ΩROFF = 0Ω
Figure 5-15 Propagation Delay tPDHL vs Temperature
UCC21751-Q1 tf Fall Time vs Temperature
VCC = 3.3VVDD=18VCL = 10nF
RON = 0ΩROFF = 0Ω
Figure 5-17 tf Fall Time vs Temperature
UCC21751-Q1 VCLP-OUT(H) Short Circuit Clamping Voltage vs
                        TemperatureFigure 5-19 VCLP-OUT(H) Short Circuit Clamping Voltage vs Temperature
UCC21751-Q1 VCLMPTH Miller Clamp Threshold Voltage vs
                        TemperatureFigure 5-21 VCLMPTH Miller Clamp Threshold Voltage vs Temperature
UCC21751-Q1 tDCLMPI Miller Clamp ON Delay Time vs TemperatureFigure 5-23 tDCLMPI Miller Clamp ON Delay Time vs Temperature
UCC21751-Q1 tDESATLEB DESAT Leading Edge Blanking Time vs
                        TemperatureFigure 5-25 tDESATLEB DESAT Leading Edge Blanking Time vs Temperature
UCC21751-Q1 tDESATFLT DESAT Sense to /FLT Low Delay Time vs
                        TemperatureFigure 5-27 tDESATFLT DESAT Sense to /FLT Low Delay Time vs Temperature
UCC21751-Q1 IDCHG DESAT Discharge Current vs TemperatureFigure 5-29 IDCHG DESAT Discharge Current vs Temperature