Dual Trip SOT Temperature Switches

Part Number	Status
MAX6505	Active: In Production. See Ordering Information for details.
MAX6506	Active: In Production. See Ordering Information for details.
MAX6507	This product is No Longer Available. See Ordering Information for recommended replacements.
MAX6508	Active: In Production. See Ordering Information for details.

The MAX6505–MAX6508 temperature switches have dual logic outputs that assert when the die temperature crosses their trip thresholds. Trip thresholds are factory programmed to convenient temperatures in 5°C increments.

The MAX6505/MAX6506 have an ALARM output that asserts when the temperature is above the factory-programmed thresholds (available from -40°C to +125°C). They also have a WARN output that asserts when the temperature is several degrees below the ALARM threshold. The difference between the ALARM and WARN thresholds (ΔT_AW) is pin selectable to +5°C, +10°C, +20°C, or +30°C. The MAX6505's logic outputs are open drain, while the MAX6506's logic outputs are push-pull.

The MAX6507 has open-drain outputs (active-low OVER, OK), and the MAX6508 has push-pull outputs (OVER, active-low OK), each with two factory-programmed threshold temperatures (T_OVER and T_UNDER) in the wide range of -40°C to +125°C. The overtemperature output asserts when the temperature is above T_OVER. When the temperature is in the desired window (less than T_OVER and greater than T_UNDER), OK (active-low OK) asserts.

The MAX6505–MAX6508 are accurate to ±0.5°C (typ), ±5.5°C (max). Operating from a +2.5V to +5.5V supply, these low-cost devices typically consume 30µA supply current and require no external components for setting trip points. The MAX6505–MAX6508 are available in a 6-pin SOT23 package.

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