power supply
Can somebody explain me the numbering system for integrated circuits.
I need an explanation for : LA4282 (not what it is, I know what it is), what each character stands for.
The one I need to replace is: LA4282 2G3 , but I found LA4282 6B2.
So if I could understand what the meaning of this naming is…
Since the interference is noticed only when the equipment is plugged into the same outlet, I would suspect that System B is producing electrical noise that is being conducted out onto the power line. Switching power circuits can generate a tremendous amount of noise, and much effort is spent on reducing it to an acceptable level. In this case, it's hard to say whether system B is especially noisy, or A is sensitive to power line noise.
Typically, we try to address conducted noise problems by using some kind of line filter in the equipment, a filter that allows power line frequencies to easily pass through but block higher frequency noise. Filters, aka power conditioners or line conditioners, are also available as stand-alone equipment.
You can use this as a full-wave rectifier if you have a centre-tapped tranformer:
simulate this circuit – Schematic created using CircuitLab
The maximum current depends on how good a heat sink you have, but several A are not a problem with a small heatsink, and the maximum AC voltage would be more than 50V (the PIV rating is 200V, so if everything was perfect 140VAC would be okay. The output will be `1.414 times the input voltage AC minus a bit for the diodes, so a 12:12 centre-tapped tranformer (24V from end to end) would give you about 16VDC, give or take depending on capacitor and load.
Best Answer
There's no general rule for what chip markings mean. Each vendor likes to do things their way. It just serves as a unique identifier. There's simply no point in looking for what each letter stands for.