| ??? 12/22/06 23:13 Read: times |
#130029 - My paycheck? Responding to: ???'s previous message |
Now, let me ask you this ... at what timing and with what loads would YOU use the Intersil part that you tested, if your paycheck depended on it? My paycheck? I would only use the data sheet numbers. There is nothing that prevents Intersil from finding some old, slow parts in a closet somewhere and shipping them out to me, as long as they meet the spec. But, if the data sheet says 2.5mA at .4 volts, it would not bother me to design in 5 mA at .8 volts (as long as the total temperature / power specs are met). -------- Back to the measurements. I had the output set to a 1 for the Ioh and 0 for Iol measurements. If I said otherwise, then I misspoke (miswrote?). -------- My understanding heretofore has been that if the datasheet said that the device would supply 2.7 volts at 2.5 mA, it would happily do that forever, from each and every output, up to the total package power dissipation limit. I agree. -------- If I am trying to characterize temperature performance, I would use a temperature forcing probe on the part, and try to make my measurements in a manner that did not add additional heat to the part. If that was unavoidable, I would alternate my measurements with a quick check of the die temperature. You can forward bias the protection diodes on a pin, and use the diode drop to determine the die temperature. |
