Hello,

I'm using the current sensor TLI4970-D050T4. For the PCB layout, they recommend traces as shown below:

What are your suggestions? Would you pour copper with hatch fill style?
I'm using DipTrace.

 

No!

Take a step back and Google current paths on PCB's. Anytime there is an "obstruction"; a cut in the PCB, via's, traces that traces must be routed around, the current must follow. In this case, the current can flow unobstructed. If you were to cross-hatch it, current has to "move along" all the little traces making up the cross-hatch. The only place I personally use cross-hatch is if I am controlling the capacitance of the PCB, or if the "flood" is being used as a Faraday cage, depending on frequency.

Rule of thumb; don't break a flood ("pour") unless you absolutely must.

Mike Tripoli

 

No don't cross hatch, the suggested copper layout is to minimize current concentrations in any one spot around the device, this prevents high extraneous magnetic fields from affecting the field pattern at the sensor chip.

Cheers
Mike