According to
Apple's Support documentation, I would say no.
Adapter M5140: 15 W, came with
PowerBook 100, 140, and 170 computers.
Adapter M5651: 19 W, came with the
PowerBook 145b, 160, 165, and 180. This adapter works with PowerBook 140, 145, 145b, 160, 165, 170, and 180 computers.
Adapter APS-17adp: 17 W, came with PowerBook 150 computers, and works with
PowerBook 100 or 150 computers.
Looks like the 15W isn't powerful enough for the 145. It is strange how the 15W and 19W work on the 170, but not the 145b. Perhaps the 170 had better power management.
I don't think you'll fry the logic board by trying it. It's either going to power on or not. One thing to consider though is that it might not have enough power to spin the drives under load, etc. So you might damage them that way. I wouldn't try it. I'd hold out until you get the right adapter.