SLUSCW3 August   2017 UCC27712-Q1

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4  Simplified Schematic
  5. 5 Revision History
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Dynamic Electrical Characteristics
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 VDD and Under Voltage Lockout
      2. 8.3.2 Input and Output Logic Table
      3. 8.3.3 Input Stage
      4. 8.3.4 Output Stage
      5. 8.3.5 Level Shift
      6. 8.3.6 Low Propagation Delays and Tightly Matched Outputs
      7. 8.3.7 Parasitic Diode Structure
    4. 8.4 Device Functional Modes
      1. 8.4.1 Minimum Input Pulse Operation
      2. 8.4.2 Output Interlock and Dead Time
      3. 8.4.3 Operation Under 100% Duty Cycle Condition
      4. 8.4.4 Operation Under Negative HS Voltage Condition
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Selecting HI and LI Low Pass Filter Components (RHI, RLI, CHI, CLI)
        2. 9.2.2.2 Selecting Bootstrap Capacitor (CBOOT)
        3. 9.2.2.3 Selecting VDD Bypass/Holdup Capacitor (CVDD) and Rbias
        4. 9.2.2.4 Selecting Bootstrap Resistor (RBOOT)
        5. 9.2.2.5 Selecting Gate Resistor RON/ROFF
        6. 9.2.2.6 Selecting Bootstrap Diode
        7. 9.2.2.7 Estimate the UCC27712-Q1 Power Losses (PUCC27712-Q1)
        8. 9.2.2.8 Estimating Junction Temperature
        9. 9.2.2.9 Operation With IGBT's
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Related Links
    3. 12.3 Community Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

11 Layout

11.1 Layout Guidelines

  • Locate UCC27712-Q1 as close as possible to the MOSFETs in order to minimize the length of high-current traces between the HO/LO and the Gate of MOSFETs, as well as the return current path to the driver HS and COM.
  • A resistor in series with bias supply and VDD pin is recommended.
  • Locate the VDD capacitor (CVDD) and VHB capacitor (CBOOT) as close as possible to the pins of UCC27712-Q1.
  • A 2-Ω to 20-Ω resistor series with bootstrap diode is recommended to limit bootstrap current.
  • A RC filter with 10 Ω to 100 Ω and 10 pF to 220 pF for HI/LI is recommended.
  • Separate power traces and signal traces, such as output and input signals.
  • Maintain as much separation as possible from the from the low voltage pins and floating drive HB, HO and HS pins.
  • Ensure there is not high switching current flowing in the control ground (input signal reference) from the power train ground.

11.2 Layout Example

UCC27712-Q1 layout_slusce9.gif Figure 53. UCC27712-Q1 Layout Example