SLUSEX2A September   2025  – September 2025 UCC27734 , UCC27735

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 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 Dynamic Electrical Characteristics
    7. 5.7 Timing Diagrams
    8. 5.8 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Input Stages and Interlock
      2. 6.3.2 Enable Function (UCC277x5 Only)
      3. 6.3.3 Undervoltage Lockout (UVLO)
      4. 6.3.4 Level Shifter
      5. 6.3.5 Output Stage
      6. 6.3.6 Low Propagation Delays and Tightly Matched Outputs
      7. 6.3.7 HS Node dV/dt
      8. 6.3.8 Split Grounds (COM and VSS)
      9. 6.3.9 Operation Under Negative HS Voltage Condition
    4. 6.4 Device Functional Modes
      1. 6.4.1 Input and Output Logic Table
      2. 6.4.2 Operation Under 100% Duty Cycle Condition
  8. 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 Selecting HI and LI Low Pass Filter Components (RHI, RLI, CHI, CLI)
        2. 7.2.2.2 Selecting Bootstrap Capacitor (CBOOT)
        3. 7.2.2.3 Selecting VDD Bypass Capacitor (CVDD)
        4. 7.2.2.4 Selecting Bootstrap Resistor (RBOOT)
        5. 7.2.2.5 Selecting Gate Resistor RHO/RLO
        6. 7.2.2.6 Selecting Bootstrap Diode
        7. 7.2.2.7 Estimate the UCC2773x Power Losses
        8. 7.2.2.8 Application Example Schematic Note
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Third-Party Products Disclaimer
      2. 8.1.2 Development Support
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

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5.8 Typical Characteristics

UCC27734 UCC27735 Propagation Delay vs Supply Voltage
T = 25°C
Figure 5-2 Propagation Delay vs Supply Voltage
UCC27734 UCC27735 Delay Matching vs Supply Voltage
T = 25°C
Figure 5-4 Delay Matching vs Supply Voltage
UCC27734 UCC27735 Quiescent Supply Current vs Supply Voltage
T = 25°C
Figure 5-6 Quiescent Supply Current vs Supply Voltage
UCC27734 UCC27735 VDD UVLO Thresholds vs Temperature
Figure 5-8 VDD UVLO Thresholds vs Temperature
UCC27734 UCC27735 HB to VSS Leakage Current vs Temperature
Figure 5-10 HB to VSS Leakage Current vs Temperature
UCC27734 UCC27735 LO and HO Pull-up Resistance vs Temperature
VHB – VHS = VDD = 15V
Figure 5-12 LO and HO Pull-up Resistance vs Temperature
UCC27734 UCC27735 HI and LI Input Voltage Thresholds vs Temperature
VHB – VHS = VDD = 15V
Figure 5-14 HI and LI Input Voltage Thresholds vs Temperature
UCC27734 UCC27735 No Load Supply Current vs Switching Frequency
VHB – VHS = VDD = 15V, T = 25°C
Figure 5-16 No Load Supply Current vs Switching Frequency
UCC27734 UCC27735 LO and HO Peak Output Current vs Supply Voltage
T = 25°C
Figure 5-18 LO and HO Peak Output Current vs Supply Voltage
UCC27734 UCC27735 Propagation Delay vs Temperature
VHB – VHS = VDD = 15V
Figure 5-3 Propagation Delay vs Temperature
UCC27734 UCC27735 Delay Matching vs Temperature
VHB – VHS = VDD = 15V
Figure 5-5 Delay Matching vs Temperature
UCC27734 UCC27735 Quiescent Supply Current vs Temperature
VHB – VHS = VDD = 15V
Figure 5-7 Quiescent Supply Current vs Temperature
UCC27734 UCC27735 VHB UVLO Thresholds vs Temperature
Figure 5-9 VHB UVLO Thresholds vs Temperature
UCC27734 UCC27735 HI and LI Input Pulldown Resistance vs Temperature
VHB – VHS = VDD = 15V
Figure 5-11 HI and LI Input Pulldown Resistance vs Temperature
UCC27734 UCC27735 LO and HO Pull-down Resistance vs Temperature
VHB – VHS = VDD = 15V
Figure 5-13 LO and HO Pull-down Resistance vs Temperature
UCC27734 UCC27735 LO and HO Output Current vs Output Voltage
VHB – VHS = VDD = 15V
Figure 5-15 LO and HO Output Current vs Output Voltage
UCC27734 UCC27735 Supply Current vs Switching Frequency
VHB – VHS = VDD = 15V, T = 25°C CL= 1nF
Figure 5-17 Supply Current vs Switching Frequency