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DRV8881: Working temperature problem about DRV8881PRHRT

Charlie Xiao
Expert 6680 points
Part Number: DRV8881

Hi team,

This device, DRV8881PRHRT, is now used in my customer's nine-inch dome machine. But now the nine-inch dome machine is very hot, so there is a problem that needs your support:

1. Is there anything special about soldering temperature for this IC?

2. What is the maximum allowable operating temperature for this IC and the corresponding operating time?

Regards,

Charlie

  • 0
    TI__Mastermind 23291 points

    Hey Charlie, 

    Just curious, how hot is very hot in this case? 

    Charlie Xiao said:
    1. Is there anything special about soldering temperature for this IC?

    Nothing special beyond our PowerPAD layout recommendations, see:

    • PowerPAD Thermally Enhanced Package, SLMA002
    • PowerPAD Made Easy, SLMA004

    The second document has a specific section 3.2 Solder Reflow Profile Suggestion.

    Charlie Xiao said:
    2. What is the maximum allowable operating temperature for this IC and the corresponding operating time?

    Per 6.1 Absolute Maximum Ratings the peak operating junction temperature is 150C.  Max Operating ambient temperature (TA) is 125C per 6.3 Recommended Operating Conditions.  Thermal shutdown temperature is 150C.  

    Regards,

    Jacob