Other Parts Discussed in Thread: TPS92691, LM3445, LM3444, TPS92692
Im looking for a LED driver to operate an application with a single high power LED. The LED current is 10A and the LED voltage between 2.8V and 3.8V.
The LED is a common anode LED which means the anode is connected to housing / cooling pad which will be on earth potential. For the whole system, the best case would be if the led anode potentail is on GND.
My favourite driver would be the LM3434 or LM3433. Unfortunately, the state of both of them is livebuy, so no option for my application. Because of the common anode, i cant find a alternative yet.
One option now is to use a driver like the LM3463. Is it possible to operate that driver in the voltage range above? Can i maybe move the whole potential down so Vtrail is 0V and GND (of the driver) will be e.g - 3.3V? I would as well add external FET driver if the internal driver can not handle fets above 6Amps.
Are there some other alternatives to the LM3434 and is there a special reason why no TI does not recommend any replacement?