Hi!
I'm working on a prototype with LM5104, basically the datasheet recomended circuit for a halfbridge system, with some adds. It's working perfectly with a PWM input signal, but I need to modify this to work just as a switch. I have an DC inductive load that need to be turned on and off with a 3.3-5v signal, it will remain turned on for hours. I noticed that the bootstrap capacitor will discharge just a few ms after the input signal is high, making the halfbridge output voltage to drop a few volts.
The load is 30VDC, the mosfets can drive it nicely, it must be turned on from the high side and I need to be sure that its grounded when off.