Q: TPS54620 Enable pin absolute maximum value by 605762

HI,

My customer has produced a TPS54620 data sheet that lists the abs max voltage on the enable pin as 3.0V. The version I down loaded from TI.com shows this value at 6.0V.

I tend to believe the version on TI.com, but I am seeking confirmation as this is a high volume opportunity and we are getting close to final schematics. Please confirm the correct abs max value.

Thanks,

Mark


A: Re: TPS54620 Enable pin absolute maximum value by 1548261

Hi Mark,

The correct maximum voltage on the enable pin is 6.0 V.  However, if the voltage on the enable pin exceeds 5 V, the Vin voltage must be high impedance and not source more than 100 uA into the enable pin.  Also, a capacitor should not be placed directly on the enable pin if the voltage is greater than 5 V when using a voltage divider to adjust the start/stop voltage.

Phil