Hi all,

I've come across a useful device: the EON 'Powerdown', aka the OneClick 'Intelliplug'. It's designed to control the power to PC peripherals based on whether the PC is turned on and drawing current.

I'd like to repurpose it for running dust extractors when my wood/metalworking machines are turned on, but as it stands there is a 5 second delay before it turns the slave devices (dust extractor in my case) on or off, which I believe was originally there to allow printers to park properly. I'd like to remove this delay so the dust extractors come on instantly.

I think I have identified the IC that is effecting the delay, but I cant find any pins on the device or capacitors in the vicinity with a ramping voltage during that 5 seconds, so the IC must be timing it somehow else. The part is marked 'Y11", "T" and "638" and I'm struggling to make sense of the markings. There is also an 'N' in the pin 1 dot. The package looks to be a 16 pin 0.65mm pitch TSSOP. I've attached photos of it if that helps.

If anyone can help identify the part, I'd be very grateful.

Thanks,

PS, I'm a electronics engineer by trade, with HV experience too, so am aware of the dangers of fiddling inside 240V devices like these.

 

Welcome to AAC.

Given the number of pins, and the fact that the Cirrus Logic chip next to it is a power meter chip that is designed to run a power meter (like on a house) and produces a pulse train proportional to power consumption, your mystery chip is almost certainly an MCU.

If that’s the case, then the delay will be based on the code, not an RC circuit.

 

Hi Ya'akov.
Good point, I hadn't even thought they'd go for something as expensive/complicated as an MCU in something like this, I was suprised to see the Cirrus IC too, given the binary operation of this device. But there is an unpopulated connector footprint (RJ11 I think) on the bottom of the board underneath this part, so I guess an MCU would probably be necessary for comms if/when they choose go down that route.
Thanks for your help, (and welcome )