The ADM2914 is a quad voltage supervisory IC ideally suited for monitoring multiple power supply systems. It features adjustable UV and OV input thresholds, high threshold accuracy of ±1.5% over temperature, a 1V buffered reference output, and adjustable reset timeout with disable option.
The ADM2914 is a quad voltage supervisory IC that monitors up to four voltage rails for over‑voltage and under‑voltage conditions. It provides adjustable UV and OV thresholds, a 1 V buffered reference output, and open‑drain reset outputs with configurable timeout.
The document includes functional block diagrams, pin configuration tables, electrical specifications, absolute maximum ratings, typical performance curves, and an ordering guide for the ADM2914‑1 and ADM2914‑2 variants, all packaged in a 16‑lead QSOP.
| Supply Voltage (Vcc) – Minimum | 2.3 V |
|---|---|
| Supply Voltage (Vcc) – Typical | 3.3 V |
| Supply Voltage (Vcc) – Maximum | 6.9 V |
| Reference Output Voltage | 0.985 V – 1.015 V |
| Undervoltage/Overvoltage Threshold | 492.5 mV – 507.5 mV |
The ADM2914 can supervise up to four voltage rails for over‑voltage and under‑voltage conditions.
The SEL pin is a three‑state input that selects the polarity of inputs 3 and 4, allowing the device to monitor either positive or negative voltages on those rails.
The absolute maximum rating for the supply pin (Vee) is –0.3 V to +6 V, and the device can operate with Vcc up to about 6.9 V.
The device provides a buffered reference output of approximately 1 V (0.985 V to 1.015 V).