9.2 Typical Application

Figure 10 shows the typical circuit configuration for the TMP302-Q1 family of devices. The TMP302-Q1 family of devices is configured for the default temperature threshold by connecting the TRIPSET0 and TRIPSET1 pins directly to ground. Connecting the HYSTSET pin to ground configures the device for 5°C of hysteresis. Place a 10-kΩ pullup resistor between the OUT and V_S pins. Place a 0.1-µF bypass capacitor between the V_S pin and ground, close to the TMP302-Q1 device.

Figure 10. TMP302-Q1 Typical Application Schematic

Figure 11 shows the most generic implementation of the TMP302-Q1 family of devices. Switches are shown connecting the TMPSET0, TMPSET1 and HYSTSET pins to either V_S or ground. The use of switches is not strictly required; the switches are shown only to illustrate the various pin connection combinations. In practice, connecting the TMPSET0, TMPSET1 and HYSTSET pins to ground or directly to the V_S pin is sufficient and minimizes space and cost. If additional flexibility is desired, connections from the TMPSET0, TMPSET1 and HYSTSET pins can be made through 0-Ω resistors which can be either populated or not populated depending upon the desired connection.

Figure 11. TMP302-Q1 Generic Application Schematic