The LM3704 is a feature-rich, easy-to-use voltage supervisor. It is offered in both push-pull and open-drain configuration with a tight 2% accuracy over temperature.
The LM3704 features include a manual reset, low-line output, and power-fail input detection. The power-fail input allows for a configurable second rail to be monitored helping detect upstream failures. The low-line output is used as a second interrupt line to indicate a fall in VCC (1.02 × VRST).
| Number of supplies monitored | 2 |
| Threshold voltage 1 (typ) (V) | 2.32, 3.08 |
| Features | Manual reset capable, PFI/PFO, Undervoltage monitor only |
| Reset threshold accuracy (%) | 2 |
| Iq (typ) (mA) | 0.028 |
| Output driver type/reset output | Active-low, Open-drain, Push-Pull |
| Time delay (ms) | 28, 200 |
| Supply voltage (min) (V) | 1 |
| Supply voltage (max) (V) | 5.5 |
| Rating | Catalog |
| Watchdog timer WDI (s) | None |
| Operating temperature range (°C) | -40 to 85 |
| VSSOP (DGS) | 10 | 14.7 mm² 3 x 4.9 |