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TPS40060: TPS40060 dead time and pmos choice

Part Number: TPS40060

Hi, team:

    When my customer test TPS40060 found out the the output signal abnormal: 

    The green: PMOS ; The blue: NMOS

    It look like mos go-through due to too long Ton.

    I couldn’t find description about dead time in datasheet and requirement about PMOS. 

    Could you kindly help analysis this issue and give more detail about TPS40060 dead-time    

   In addition, when My customer choice si746dp(PMOS) and resistance use 4.7Ω; 

  • Hello Hailey

    The typical value is 50ns based on equation 53, but it looks like the parameter hasn't been characterized. 

    If you are using a gate resistor on the high-side, please try to retest after shorting the resistor.   

    - Eric Lee