What are the creepage and clearance distances between the current path and the sensing circuit?
The clearance distance in an ACS710 application is typically equal to the distance between the solder pads on opposite sides of the sensor package. Based on the recommended solder pad layout in the datasheet, it measures approximately: 9.50 − 2 × ( 2.25 ⁄ 2 ) = 7.25 (mm) The creepage distance on the surface of the sensor IC package measures approximately: 7.50 + 2.00 = 9.50 (mm) The creepage distance on the surface of the printed circuit board on which the sensor IC is mounted may be increased, if necessary, by cutting a slit on the board between the solder pads on opposite sides of the sensor IC package. Refer to figure 4. Figure 4. Typical slit cut into the PCB underneath the package, separating the two banks of pins, to further control creepage.
