- Published in issue 7/1999 on page 36
Dual-output low-power thermostat
The LM56 from National Semiconductor is an accurate, dual-output, low-power thermostat contained in an 8-pin SMD case. It contains a 1.25 V bandgap voltage reference, two comparators with 5 °C hysteresis and a temperature sensor. The output voltage of the sensor is internally linked to the comparators. The supply voltage may lie in the range 2.7–10 V.