The MAX6453–MAX6456 are low-power, dual-voltage µP supervisors featuring separate VCC reset and manual reset outputs. The dual outputs support both soft-system reset (interrupt) and hard-system reset (reboot) functions. The reset output asserts when any of the monitored voltages falls below its specified threshold and remains asserted for the reset timeout (140ms min) after all voltages exceed their respective reset thresholds. All devices are offered with nine factory-fixed reset thresholds for monitoring primary system voltages (VCC) from 1.8V to 5V and an adjustable reset input for monitoring a secondary system voltage down to 0.63V. Each device has a manual reset input, a VCC reset output, and a manual reset output.
The MAX6453‑MAX6456 family are low‑power, dual‑voltage microprocessor supervisors that provide separate VCC reset and manual reset outputs. They monitor primary system voltages from 1.8 V to 5 V and an adjustable secondary voltage down to 0.63 V, offering both soft‑system (interrupt) and hard‑system (reboot) reset functions.
Key features include nine factory‑set reset thresholds (1.6 V‑4.6 V), an adjustable threshold to 0.63 V, a manual reset input with a 3.36 s setup period, low 6 µA supply current, and operation over –40 °C to +85 °C in a 6‑pin SOT‑23‑6 package. Typical applications are set‑top boxes, consumer electronics, DVD players, modems, MP3 players, industrial equipment, automotive, and medical devices.
| Reset timeout period | 140 ms (min) |
|---|---|
| Operating voltage range | 1.0 V – 5.5 V |
| Factory‑set reset thresholds | 1.6 V – 4.6 V (nine levels) |
| Supply current | Low 6 µA |
| Package | SOT‑23‑6 |
| Temperature range | -40 °C to +85 °C |
The reset output remains asserted for a minimum of 140 ms after the monitored voltage rises above its threshold.
There are nine factory‑set reset thresholds ranging from 1.6 V to 4.6 V.
All devices are supplied in a small 6‑pin SOT‑23 package.