SLLSER8F June   2017  – January 2019 UCC5310 , UCC5320 , UCC5350 , UCC5390

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1. 3.1 Functional Block Diagram (S, E, and M Versions)
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Function
    1.     Pin 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  Power Ratings
    6. 7.6  Insulation Specifications for D Package
    7. 7.7  Insulation Specifications for DWV Package
    8. 7.8  Safety-Related Certifications For D Package
    9. 7.9  Safety-Related Certifications For DWV Package
    10. 7.10 Safety Limiting Values
    11. 7.11 Electrical Characteristics
    12. 7.12 Switching Characteristics
    13. 7.13 Insulation Characteristics Curves
    14. 7.14 Typical Characteristics
  8. 8 Parameter Measurement Information
    1. 8.1 Propagation Delay, Inverting, and Noninverting Configuration
      1. 8.1.1 CMTI Testing
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Power Supply
      2. 9.3.2 Input Stage
      3. 9.3.3 Output Stage
      4. 9.3.4 Protection Features
        1. 9.3.4.1 Undervoltage Lockout (UVLO)
        2. 9.3.4.2 Active Pulldown
        3. 9.3.4.3 Short-Circuit Clamping
        4. 9.3.4.4 Active Miller Clamp (UCC53x0M)
    4. 9.4 Device Functional Modes
      1. 9.4.1 ESD Structure
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Designing IN+ and IN– Input Filter
        2. 10.2.2.2 Gate-Driver Output Resistor
        3. 10.2.2.3 Estimate Gate-Driver Power Loss
        4. 10.2.2.4 Estimating Junction Temperature
      3. 10.2.3 Selecting VCC1 and VCC2 Capacitors
        1. 10.2.3.1 Selecting a VCC1 Capacitor
        2. 10.2.3.2 Selecting a VCC2 Capacitor
        3. 10.2.3.3 Application Circuits With Output Stage Negative Bias
      4. 10.2.4 Application Curve
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
    3. 12.3 PCB Material
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Certifications
    3. 13.3 Related Links
    4. 13.4 Receiving Notification of Documentation Updates
    5. 13.5 Community Resources
    6. 13.6 Trademarks
    7. 13.7 Electrostatic Discharge Caution
    8. 13.8 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

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

10.2.3.3 Application Circuits With Output Stage Negative Bias

When parasitic inductances are introduced by nonideal PCB layout and long package leads (such as TO-220 and TO-247 type packages), ringing in the gate-source drive voltage of the power transistor could occur during high di/dt and dv/dt switching. If the ringing is over the threshold voltage, unintended turnon and shoot-through could occur. Applying a negative bias on the gate drive is a popular way to keep such ringing below the threshold. A few examples of implementing negative gate-drive bias follow.

Figure 60 shows the first example with negative bias turnoff on the output using a Zener diode on the isolated power-supply output stage. The negative bias is set by the Zener diode voltage. If the isolated power supply is equal to 20 V, the turnoff voltage is –5.1 V and the turnon voltage is 20 V – 5.1 V ≈ 15 V.

UCC5310 UCC5320 UCC5350 UCC5390 Negative-Bias-with-Zener-.gifFigure 60. Negative Bias With Zener Diode on Iso-Bias Power-Supply Output

Figure 61 shows another example which uses two supplies (or single-input, double-output power supply). The power supply across VCC2 and GND2 determines the positive drive output voltage and the power supply across VEE2 and GND2 determines the negative turnoff voltage. This solution requires more power supplies than the first example, however, it provides more flexibility when setting the positive and negative rail voltages.

UCC5310 UCC5320 UCC5350 UCC5390 Negative-Bias-w-Two-Iso-Bias-Power-Supplies.gifFigure 61. Negative Bias With Two Iso-Bias Power Supplies (UCC5320E and UCC5390E)