Low-Cost, 2.7V to 5.5V, Analog Temperature Sensor Switches in a SOT23
Low-Cost, 2.7V to 5.5V, Analog Temperature-Sensor Switches in a SOT23 Assert a Logic Signal when Their Die Temperature Crosses a Factory-Programmed Threshold
The MAX6516-MAX6519 low-cost, fully integrated temperature switches assert a logic signal when their die temperature crosses a factory-programmed threshold. Operating from a 2.7V to 5.5V supply, these devices feature a fixed voltage reference, an analog temperature sensor, and a comparator. They are available with factory-trimmed temperature trip thresholds from +35°C to +115°C in 10°C increments, and are accurate to ±0.5°C (typ). These devices require no external components and typically consume 22µA of supply current. Hysteresis is pin selectable at 2°C or 10°C.
The MAX6516-MAX6519 are offered with hot-temperature thresholds (+35°C to +115°C), asserting when the temperature is above the threshold.
These devices provide an analog output proportional to temperature and are stable with any capacitive load up to 1000pF. The MAX6516-MAX6519 can be used over a range of +55°C to +125°C with a supply voltage of 2.7V to 5.5V. For applications sensing temperature down to -45°C, a supply voltage above 4.5V is required.
The MAX6516 and MAX6518 have an active-high, push-pull output. The MAX6517 and MAX6519 have an active-low, open-drain output. These devices are available in a space-saving 5-pin SOT23 package.
Key Features
Applications/Uses
High Accuracy ±1.5°C (max) Over +35°C to +65°C Temperature Range
Low Power Consumption—22µA Typical Current
Factory-Programmed Thresholds from +35°C to +115°C in 10°C Increments
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