SLUSFL4A April   2024  – October 2024 UCC27614-Q1

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 Switching 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 VDD Undervoltage Lockout
      2. 6.3.2 Input Stage
      3. 6.3.3 Enable Function
      4. 6.3.4 Output Stage
    4. 6.4 Device Functional Modes
  8. 7  Applications and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Driving MOSFET/IGBT/SiC MOSFET
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
          1. 7.2.1.2.1 Input-to-Output Configuration
          2. 7.2.1.2.2 Input Threshold Type
          3. 7.2.1.2.3 VDD Bias Supply Voltage
          4. 7.2.1.2.4 Peak Source and Sink Currents
          5. 7.2.1.2.5 Enable and Disable Function
          6. 7.2.1.2.6 Propagation Delay and Minimum Input Pulse Width
          7. 7.2.1.2.7 Power Dissipation
        3. 7.2.1.3 Application Curves
  9. 8 Power Supply Recommendations
  10. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
    3. 9.3 Thermal Consideration
  11. 10Device and Documentation Support
    1. 10.1 Third-Party Products Disclaimer
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

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発注情報

6.3.3 Enable Function

The Enable (EN) pin of the UCC27614-Q1 device also has TTL compatible input thresholds with wide hysteresis. The typical turnon threshold is 2 V and the typical turn-off threshold is 1 V with typical hysteresis of 1 V. The Enable (EN) pin of the UCC27614-Q1 has an internal pullup resistor to an internal reference voltage. Thus, leaving the Enable pin floating turns on the driver and allows it to send output signals properly. If desired, the Enable can also be driven by low-voltage logic to enable and disable the driver. There is minimum delay from the enable block to the output for fast system response time. Similar to the input pins, the enable pin can also handle significant negative voltage and therefore provides system robustness. The enable pin can withstand wide range of slew rate such as 1 V/ns to 1 V/ms. The enable signal is independent of VDD voltage and stable across the full operating temperature range.