When the NTC hits 80°C, the comparator will output LOW signal, but it will only be HIGH if only the NTC hit 75°C. So before the NTC hit 80°C, the circuit will work as intended. But the problem is when I start the simulation with NTC temperature starting point at 76-79°C, it works as intended.
But when I start the simulation with temperature below 76°C or above 79°C, it doesn't work as intended. When I start below 76°C, the comparator give the LOW signal at 80°C (which is working as intended) but it give a HIGH signal when it hit 79°C, it should give HIGH signal only if the NTC hit 75°C not 79°C. The reverse is also true if I start the simulation above 79°C, when I decrease the temperature to 75°C, it give HIGH signal, but if I increase it to 76°C, it immediately give LOW signal.
The VCC is 5 V, and the VIN is 5 V. I don't know what makes it behave like that, is it the value of the resistor or what.
