MAX6514/MAX6515 are low-cost, fully integrated temperature switches that 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 -45°C to +15°C and +35°C to +115°C in 10°C increments, and are accurate to ±1°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 MAX6514/MAX6515 are offered with hot-temperature thresholds (+35°C to +115°C), asserting when the temperature is above the threshold or with cold-temperature thresholds (-45°C to +15°C), asserting when the temperature is below the threshold. The MAX6514/MAX6515 can be used over a -35°C to +125°C range 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 MAX6514 has an active-high, push-pull output. The MAX6515 has an active-low, open-drain output. These devices are available in a space-saving 5-pin SOT23 package and operate over the -55°C to +125°C temperature range. Applications include Over/Undertemperature Protection, Fan Control, Test Equipment, Temperature Control, Temperature Alarms, Notebook, Desktop PCs, RAID Servers.
The MAX6514 and MAX6515 are fully integrated temperature switches that combine a fixed voltage reference, an analog temperature sensor, and a comparator. They operate from a 2.7 V to 5.5 V supply and are available with factory‑programmed temperature thresholds in 10 °C increments covering –45 °C to +115 °C.
Both devices are offered in a compact 5‑pin SOT23 package and function over a –55 °C to +125 °C temperature range. The MAX6514 provides an active‑high push‑pull output, while the MAX6515 provides an active‑low open‑drain output. Hysteresis can be set to 2 °C or 10 °C via a pin connection.
| Supply Voltage Range | 2.7 V to 5.5 V |
|---|---|
| Typical Supply Current | 22 µA |
| Operating Temperature Range | -55 °C to +125 °C |
| Package | 5‑pin SOT23 |
| Hysteresis Options | 2 °C or 10 °C (pin selectable) |
| Temperature Threshold Accuracy | ±1 °C (typ) |
They operate from 2.7 V to 5.5 V.
The MAX6514 has an active‑high push‑pull output, while the MAX6515 has an active‑low open‑drain output.