I'm using a ULN2003AN to actuate a 24V/3W solenoid valve. After I set pin P8_11 to HIGH, the solenoid clicked and its power led turned on, then the BBB died. I tried turning the BBB power on again, but all that happens is that the power led flashes briefly. I had checked everything w a multimeter before hooking up the system. The solenoid is 177 ohms; hooked to 24V, it reads 0.151A -- which is under ULN2003AN's .5A max and matches its datasheet (AVS-5322-24D on http://www.automationdirect.com/static/specs/nitradirectionsolenoidavs5.pdf).
There shouldn't be a problem. And the ULN2003AN isn't broken. The BBB and transistor worked fine for a more expensive solenoid valve (VUVB-L: http://www.festo.com/net/SupportPortal/Files/17267/Ventile_en.pdf). I've tested it with that valve and the multimeter read 374 ohms; hooked to 24V, it reads 0.062A. I don't understand why the BBB died. It shouldn't have because I was careful about checking the datasheets and then w the multimeter. Would someone please tell me what went wrong? I can't see any mistakes. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
