MAX6685/MAX6686 are dual-output temperature switches that use an external diode-connected transistor as a sens- ing element
The Maxim MAX6685 and MAX6686 are dual‑output temperature switches that use an external diode‑connected transistor as the sensing element. They provide two logic outputs (T HIGH and T LOW) with programmable lower‑threshold temperatures and preset upper‑threshold options of +120 °C or +125 °C.
The datasheet details electrical characteristics, absolute maximum ratings, pin descriptions, recommended external components, and typical application circuits. It also includes package information for the 8‑pin µMAX package and guidelines for noise‑filtering capacitors to maintain accuracy.
| Power‑supply range (VDD) | 3.0 V to 5.5 V |
|---|---|
| Average supply current (IDD) | 200 µA to 500 µA |
| Output hysteresis | 5 °C |
| T HIGH output type | Open‑drain, active‑low |
| T LOW output type (MAX6685) | CMOS push‑pull, active‑high |
Both devices are offered in a space‑saving 8‑pin µMAX package.