50.7.5 VDD3V3 Supply Monitor
| Symbol | Parameter | Conditions | Min | Max | Unit |
|---|---|---|---|---|---|
| VIT- | Programmable range of negative-going input threshold voltage (VDD3V3) | – | 2.4 | 3.45 | V |
| VACC | VIT- Accuracy | With respect to programmed threshold value(4) | -2 | +2 | % |
| Vhys | Hysteresis(2, 3) | – | 20 | 50 | mV |
| IDDON | Current consumption(1, 3) | ON with a 100% duty cycle. | – | 20 | μA |
| tDET | Detection time(3) | – | 300 | ns | |
| tON | Start-up time(3) | From OFF to ON | – | 300 | μs |
Note:
- The average current consumption can be reduced by using the supply monitor in Sampling mode. Refer to Supply Controller (SUPC).
- Vhys= VIT+ - VIT-. VIT+ is the positive-going input threshold voltage (VDD3V3).
- Simulation data.
- See the following table: VDD3V3 Supply Monitor VIT- Threshold Selection.
| Digital Code | Threshold (V) |
|---|---|
| 0 | 2.40 |
| 1 | 2.47 |
| 2 | 2.54 |
| 3 | 2.61 |
| 4 | 2.68 |
| 5 | 2.75 |
| 6 | 2.82 |
| 7 | 2.89 |
| 8 | 2.96 |
| 9 | 3.03 |
| 10 | 3.10 |
| 11 | 3.17 |
| 12 | 3.24 |
| 13 | 3.31 |
| 14 | 3.38 |
| 15 | 3.45 |