The ADM1186-1 and ADM1186-2 are integrated, four-channel voltage up and down sequencers and monitors that can be programmed with resistor dividers to monitor different voltage levels, and support up and down supply sequencing.
The ADM1186‑1 and ADM1186‑2 are integrated, four‑channel voltage monitoring and sequencing devices that operate from a 2.7 V to 5.5 V supply. They provide four programmable voltage‑monitor inputs, open‑drain enable outputs, a power‑good output, and a fault pin for robust power‑up and power‑down sequencing.
The device supports cascading of multiple units, programmable delay times via external capacitors, and includes built‑in glitch filtering. Detailed pin functions, timing diagrams, and absolute maximum ratings are provided for designers of telecommunications, data‑communication, and computing equipment.
| Input Threshold (VINx) | 0.600 V (typ) |
|---|---|
| Time Delay Accuracy | ±5 % to ±9 % (depends on capacitor) |
| Open‑Drain Enable Outputs | Four (OUT1‑OUT4) |
SEQ_DONE is an open‑drain pin that is asserted high to indicate that a power‑up sequence is complete.
The device provides four open‑drain enable outputs, labeled OUT1 through OUT4.
Yes, multiple devices can be cascaded, as noted for the ADM1186‑1.