Say I wanted to replace a xenon strobe tube with P7 or multiple P7's.
So some people say they've accidentally had the P7 running off 3x nimh without regulation and had it up at 4amps continuous with no immediate damage.
This usage would probably by like 1 brief flash every 1.5sec. Duration... I dunno, 50ms? So there's no overheating question. Those pulses would have to be 300W on that duty to match the average heat seen when running at 2.8A.
The question is all about how much instantaneous current the device can take, I mean at some point the bonding wire's gonna blow apart. Thinking back to what I know of switching diodes, I do see a problem where the dies will be subject to hot spots. In continuous use, there's enough thermal conductivity between them that they share the same temp. In a surge one could heat up faster than the thermal conduction between them and lower its Vf, thus one die takes all the current.
I have no idea if that'll happen at 5 amps or 50 amps or what.
It's kind of frustrating because SSC doesn't spec for this and even if I find out one device can take a high current on the testbench for hundreds of hours without degradation that doesn't mean all of them can, or that SSC won't arbitrarily change the pulse behavior in a later batch and not tell anyone.
Any... speculation on possible current?
So some people say they've accidentally had the P7 running off 3x nimh without regulation and had it up at 4amps continuous with no immediate damage.
This usage would probably by like 1 brief flash every 1.5sec. Duration... I dunno, 50ms? So there's no overheating question. Those pulses would have to be 300W on that duty to match the average heat seen when running at 2.8A.
The question is all about how much instantaneous current the device can take, I mean at some point the bonding wire's gonna blow apart. Thinking back to what I know of switching diodes, I do see a problem where the dies will be subject to hot spots. In continuous use, there's enough thermal conductivity between them that they share the same temp. In a surge one could heat up faster than the thermal conduction between them and lower its Vf, thus one die takes all the current.
I have no idea if that'll happen at 5 amps or 50 amps or what.
It's kind of frustrating because SSC doesn't spec for this and even if I find out one device can take a high current on the testbench for hundreds of hours without degradation that doesn't mean all of them can, or that SSC won't arbitrarily change the pulse behavior in a later batch and not tell anyone.
Any... speculation on possible current?
