Phase Perfect dpc-a10 Hall effect sensor ID

[Hardplates]

Hi,
I am new to the forum. I am trying to repair a digital phase converter for myself. It has to current sensors that monitor L1 and L3(the manufactured leg) I believe inside them is a hall effect sensor that has the marking 16L which I cant find anything about. I believe when the previous owner was changing the AC capacitors they bumped this sensor and broke the 5 volt and signal pins off it internally. With the L1 one removed the LEDS don't even come on when I power the board up on the bench so it would makes sense that it wont try to generate the 3rd leg if it doesn't see the L3 sensor there. There are no factory markings on the sensors other than a white dot and 125 hand written on the top (I assume they were a hand matched pair?) I do have the L1 one that is functional. Does anyone know how to figure out what I need to replace the broken part?

Thanks,
Paul

[fzabkar]

The logo looks like Allegro.

You might start looking here:

http://pdf.datasheetz.com/data/Integrated%20Circuits%20(ICs)/Power%20Management%20-%20Specialized/A8424EESTR-T-datasheetz.pdf

AFAICT, the part marking usually (?) corresponds to the last 3 digits of the part number.

[Hardplates]

The only one on the list that ends in 16 seems to be a 4 pin but thank you. The good current sensor seems to put out 4.6 volts regardless of if I have a live current drawing load ran through it or not.....maybe I'm testing something wrong.

[Hardplates]

It appears to be an overload protection circuit that shuts down over 125 amps. A simple resistor works as a jumper while I'm searching for the main problem. If anyone knows anything about the blue phase perfect converters I would love to learn about them. The manufacturer chooses to no longer support them and no one else makes anything like it.

[fzabkar]

Could the sensor be an A3516L (A3516LUA)?

https://www.allegromicro.com/~/Media/Files/Datasheets/A3515-6-Datasheet.ashx

It might help to know the date codes of other chips in your device. Then you could search for likely candidates at the Wayback Machine.

http://web.archive.org/web/*/allegromicro.com

[Hardplates]

That appears to be the one! Thank you much.