While putting together a PCB project, I have come across the ACS724 current sensor, for measuring AC/DC current in high ranges up to 50 amps. This chip uses hall effect for measurement and is a 'pass-through' type of sensor: No shunt resistor or any other external circuit is used for sensing.
Now here is where it gets amazing: This chip comes in 8-pin SOIC package! For those not familiar, this is very very small. So I started looking for information about the SOIC package standards, but couldn't find anything relating to electrical capabilities, only dimensions. Using the chip involves thermal management but still, I have a hard time believing that a single pin on an SOIC package can handle 25 amps?!?
- Does anyone know where to find electrical data on surface mount packages?
- Does anyone have advice on using such a chip in a circuit, without causing some havoc?