SNOSDG7A May   2025  – March 2026 TPS7H6101-SEP

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Options Table
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics
  8. 7 Parameter Measurement Information
    1. 7.1 Timing Measurement
    2. 7.2 Deadtime Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Gate Drive Input Voltage
      2. 8.3.2  Linear Regulator Operation
      3. 8.3.3  Bootstrap Operation
        1. 8.3.3.1 Bootstrap Charging Methods
          1. 8.3.3.1.1 Internal Bootstrap Charging
          2. 8.3.3.1.2 Direct VIN Bootstrap Charging
          3. 8.3.3.1.3 Dual Bootstrap Charging
          4. 8.3.3.1.4 Two Switch Common Ground Reference
        2. 8.3.3.2 Bootstrap Capacitor
        3. 8.3.3.3 Bootstrap Diode
        4. 8.3.3.4 Bootstrap Resistor
      4. 8.3.4  High-Side Driver Startup
      5. 8.3.5  PWM_LI and EN_HI
      6. 8.3.6  Dead Time
      7. 8.3.7  Input Interlock Protection
      8. 8.3.8  Undervoltage Lockout and Power Good (PGOOD)
      9. 8.3.9  Negative Switch Node Voltage Transients
      10. 8.3.10 Level Shifter
    4. 8.4 Device Functional Modes
  10. 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 Bootstrap and Bypass Capacitor
          1. 9.2.2.1.1 Bootstrap Capacitor
          2. 9.2.2.1.2 Input Capacitance
          3. 9.2.2.1.3 Internal Regulator Capacitor
        2. 9.2.2.2 Bootstrap Diode
      3. 9.2.3 Application Results
      4. 9.2.4 Double Pulse Characteristics
        1. 9.2.4.1 Double Pulse Testing Measurement
        2. 9.2.4.2 Double Pulse Testing Results
      5. 9.2.5 Thermal Characteristics
        1. 9.2.5.1 Foster RC Thermal Model
        2. 9.2.5.2 Applying Foster Thermal Networks
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
        1. 9.4.1.1 Thermal Vias
        2. 9.4.1.2 HVIN Plane
        3. 9.4.1.3 Solder Mask Defined Pads
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    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

8.3.4 High-Side Driver Startup

For proper startup of the high side, the BOOT to SW_HS voltage must be greater than the BOOT UVLO rising threshold value of 6.65V (typical). In half-bridge converter configurations that have a pre-bias voltage present at the output, the bootstrap capacitor is unable to adequately charge from VIN until the output voltage is sufficiently discharged. This same behavior can be seen during a brownout of VIN in which the input voltage temporarily decreases below the VIN UVLO falling threshold. Upon recovery, the low-side driver initiates resumption of normal operation, but the turn-on of the high-side driver is delayed due to the output voltage that is present on the converter. This is a problem that is inherent in half-bridge gate drivers. Discharge circuits at the converter output can help alleviate the problem by forcing the output to a low voltage, only after which gate drive startup is attempted.