SNVSCF5A June 2023 – December 2023 TPS35
PRODUCTION DATA
The negative-going threshold voltage, VIT-, is set by the device variant. Equation 4 shows how to calculate the "Threshold Voltage" section of the orderable part number.
In this example, the nominal supply voltage for the microcontroller is 1.8 V. The minimum supply voltage is 10% lower than the nominal supply voltage, or 1.62 V. Setting a 1.65 V threshold makes sure that the device resets just before the supply voltage reaches the minimum allowed. Thus a 1.65 V threshold is chosen and, using Equation 4, the part number is reduced to TPS35xx13xxxxxxx. Since the hysteresis is 5% typical, the positive-going threshold voltage, VIT+, is 1.73 V.