This document introduces the features and characteristics of MAX6505-MAX6508 temperature switches, including the functions, working principles, models, and application scenarios.
The MAX6505–MAX6508 family are dual‑trip temperature switches that provide two logic outputs. Each device operates from a +2.5 V to +5.5 V supply, consumes about 30 µA, and is accurate to ±0.5 °C (typ). The parts are offered in a 6‑pin SOT‑23 package and feature factory‑programmed temperature thresholds in 5 °C increments, with ΔT₍AW₎ selectable via pins S0 and S1.
These switches are intended for µP temperature monitoring, fan control, thermal shutdown, and other temperature‑dependent functions in high‑speed computers and similar systems. The datasheet includes pin descriptions, electrical characteristics, typical operating circuits, and part‑suffix tables for selecting specific trip points.
| Supply Voltage Range | +2.5 V to +5.5 V |
|---|---|
| Typical Supply Current | 30 µA |
| Temperature Accuracy (typ) | ±0.5 °C |
| Package Type | 6‑pin SOT‑23 |
| Operating Temperature Range | -40 °C to +125 °C |
| Output Type (MAX6505) | Open‑drain |
They operate from a +2.5 V to +5.5 V supply.
Each device provides two logic outputs; MAX6505/6 have ALARM and WARN, while MAX6507/8 have OVER and OK.
Typical supply current is about 30 µA.
Thresholds are factory‑programmed in 5 °C increments, and the ΔT₍AW₎ between ALARM and WARN can be selected via pins S0 and S1.