3 Connecting to an EVM

The two prongs in Figure 2-6 are inserted into two matching holes of an EVM, thereby enabling the attachment to be physically secured onto an EVM. The prongs are inserted from underneath the EVM’s PCB until they snap into the two holes on the EVM’s PCB. In Figure 3-1, the attachment is connected to the TMAG5273A2 portion of the TMAG5273EVM. The attachment could also connect to the TMAG5273A1 portion of the EVM, however, by inserting the attachment into the two holes on the left of the EVM. When properly connected to an EVM, the Hall position sensor can be viewed through the top hole of the attachment (see Figure 3-1). After connecting the base to the EVM, the Sensor Controller Board is then connected to the EVM.

Figure 3-1 Top View of EVM Connection to Base of Attachment

The top hole of the attachment is where the screw is inserted. To fasten the screw into the base, the screw is turned clockwise, which decreases the distance between the magnet and the Hall position sensor. Figure 1-2 shows an image of the screw fully fastened into the base. To unfasten the screw, the screw is turned counter-clockwise until it is fully unfastened (see Figure 1-1).