Thermostat Output Temperature Sensors

ROHM's output ICs with temperature switching function (BDExxx0G series) eliminate the need for the complicated circuitry required in conventional thermistor-type temperature detection circuits by integrating a high precision reference voltage source, comparator, constant current circuit, and temperature detection element in a single chip.

Additional features include adjustable detection temperature (3-stage: target, ±5°C), high detection accuracy (±4°C), low current consumption (16uA typ.), detection temperature hysteresis, and open drain/active low output. Fifteen models are offered in a wide range of temperatures (-20°C to +120°C, in 10°C increments) including SSOP5 package types.

These temperature sensors are ideal for thermal protection/fan control circuits in a variety of devices, from notebook PCs and mobile phones, to TVs.