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SNIS191A – JULY 2015 – REVISED JULY 2015 LM57-Q1 Resistor-Programmable Temperature Switch and Analog Temperature Sensor
1 Features 3 Description The LM57-Q1 device is a precision, dual-output,
temperature switch with analog temperature sensor
output for wide temperature applications such as
automotive grade. The trip temperature (TTRIP) is
selected from 256 possible values in the range of
–40°C to 160°C. The VTEMP is a class AB analog
voltage output that is proportional to temperature with
a programmable negative temperature coefficient
(NTC). Two external 1% resistors set the TTRIP and
VTEMP slope. The digital and analog outputs enable
protection and monitoring of system thermal events. 1 Qualified for Automotive Applications, for
Commercial Device See LM57 Data Sheet
AEC-Q100 Qualified with the Following Results:
– Temperature Grade 0 Extended: -50°C to
+160В°C with Excursions up to 170В°C Operating
Temperature Range …