| Author | Message | < Power Electronic ~ Dual-output, low-power thermostat | | eric | | Posted: Sun Sep 10, 2006 9:28 am Post subject: Dual-output, low-power thermostat | | | | Site Admin Joined: 01 Jan 1970 Posts: 311 | A National Semiconductor application
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.
There are several variants: the LM56CIM has an accuracy of
±4 °C and the LM56BIM ±3 °C, both over the temperature range
–40 °C to +125 °C. Typical applications are temperature monitoring
in a variety of system, protection against low or high temperatures,
and control of alarm systems or fans.
Outputs OUT1 and OUT2
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