SLVSGE8A november 2022 – june 2023 TPS35-Q1
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 ensures that the device will be reset 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 TPS35xx13xxxxxxxQ1. Since the hysteresis is 5% typical, the positive-going threshold voltage, VIT+, is 1.73 V.