The ADM8616/ADM8617 are supervisory circuits that monitor power supply voltage. They feature precision 1.8V to 5V power supply monitoring, 9 RESET threshold options, 4 RESET timeout options, 3 watchdog timeout options, etc.
The ADM8616 and ADM8617 are low‑voltage supervisory circuits that monitor power‑supply voltage and code‑execution integrity in microprocessor‑based systems. They generate a power‑on reset when the supply rises above a preset threshold and include an on‑chip watchdog timer that can reset the processor if it fails to toggle within a configured timeout period.
The document lists detailed electrical specifications, absolute‑maximum ratings, pin functions, typical performance curves, and application guidance. It also includes ordering information and a functional block diagram to aid designers in integrating the devices into portable, low‑power applications.
| Supply Voltage Range (VEE) | 1 V to 5.5 V |
|---|---|
| Supply Current | 10 µA (VEE=5.5 V) to 20 µA (VEE=3.6 V) |
| Reset Threshold Voltage (typical) | 1.58 V to 4.63 V (nine options) |
| Reset Timeout Period (typical) | 1 ms to 2240 ms (four options) |
| Watchdog Timeout Options | 6.3 ms, 102 ms, 1.6 s |
| Reset Output Voltage (Open‑Drain) | 0.3 V at VEE=2 V, 1.0 V at Isink=50 µA |
| Absolute Maximum VEE | -0.3 V to +6 V |
| Operating Temperature Range | -40 °C to +85 °C |
The devices operate with a supply voltage (VEE) from 1 V up to 5.5 V.
There are nine reset threshold options ranging from 1.58 V to 4.63 V.
Three watchdog timeout options are offered: 6.3 ms, 102 ms, and 1.6 s.