The ADM690A/ADM692A/ADM802L/M/ADM805L/M are available in 8-pin packages and provide:
- Power-on reset output during power-up, power-down and brownout conditions. The RESET output remains operational with VCC as low as 1 V.
- Battery backup switching for CMOS RAM, CMOS microprocessor or other low power devices.
- A reset pulse if the optional watchdog timer has not been toggled within 1.6 seconds.
- A 1.25 V threshold detector for power fail warning, low battery detection, or to monitor a power supply other than +5 V.
On the ADM690A/ADM802L/ADM805L the reset voltage threshold is 4.65 V. On the ADM692A/ADM802M/ ADM805M, the reset voltage threshold is 4.40 V.
The ADM802L/ADM802M guarantee power fail accuracies to ±2%.
Feature
- Precision Supply Voltage Monitor
- 4.65 V ADM690A/ADM802L/ADM805L
- 4.40 V ADM692A/ADM802M/ADM805M
- Reset Assertion Down to 1 V VCC
- Reset Timeout—200 ms
- Watchdog Timer—1.6 s
- 100 mA Quiescent Supply Current
- Automatic Battery Backup Power Switching
- Voltage Monitor for Power Fail
- ±2% Power Fail Accuracy on ADM802L/M
- Space-Saving MicroSOIC Package (ADM690A)
