LM56 Datasheet - National Semiconductor

LM56 Dual Output Low Power Thermostat

The LM56 is a precision low power thermostat. Two stable temperature trip points (VT1 and VT2) are generated by dividing down the LM56 1.250V bandgap voltage reference using 3 external resistors. The LM56 has two digital outputs. OUT1 goes LOW when the temperature exceeds T1 and goes HIGH when the t.

LM56 Features

* n n n n n n Digital outputs support TTL logic levels Internal temperature sensor 2 internal comparators with hysteresis Internal voltage reference Currently available in 8-pin SO plastic package Future availability in the 8-pin Mini-SO8 package Key Specifications n Power Supply Voltage n Power Supp

LM56_NationalSemiconductor.pdf