Hi. I'm sim'ing an IR2110 driving a half-H-bridge for a boost converter (24V-->50V). The sim works for a few pulses and then the high-side FET stops turning on, but conduction continues thru the body diode. I've established that it's the IR2110 that is failing, although the low-side continues to work fine. Can anyone confirm that device failure is modeled in LTSpice, and if so, how can I tell which param breach caused the failure? I've been browsing the datasheet and checking the peak V and I along the high-side and they're all well within acceptable ranges. dVs/dt also seems acceptable at ~1V/ns. I managed to prevent failure by reducing the duty cycle of the high-side only, but I was never at risk of simultaneous low-side high-side conduction.
The model I used for IR2110 is here. It's a pspice model but I just dropped it into my LTspice schematic and it worked as expected (briefly): http://www.irf.com/product-info/models/sim/
The model I used for IR2110 is here. It's a pspice model but I just dropped it into my LTspice schematic and it worked as expected (briefly): http://www.irf.com/product-info/models/sim/