资 源 简 介
The LM26NV is a precision, single digital-output, low-powerthermostat comprised of an internal reference, DAC, temperaturesensor and comparator. UTIlizing factory programming,it can be manufactured with different trip points as well asdifferent digital output funcTIonality. The trip point (TOS) canbe preset at the factory to any temperature in the range of−55°C to +110°C in 1°C increments. The LM26NV has onedigital output (OS/OS/US/US) and one digital input (HYST).The digital output stage can be preset as either open-drain orpush-pull. In addiTIon, it can be factory programmed to be acTIveHIGH or LOW. The digital output can be factory programmedto indicate an over temperature shutdown event(OS or OS) or an under temperature shutdown event (US orUS). When preset as an overtemperature shutdown (OS), itwill go LOW to indicate that the die temperature is over theinternally preset TOS and go HIGH when the temperaturegoes below (TOS–THYST). Similarly, when preprogrammed asan undertemperature shutdown (US) it will go HIGH to indicatethat the temperature is below TUS and go LOW when thetemperature is above (TUS+THYST). The typical hysteresis,THYST, can be set to 2°C or 10°C and is controlled by the stateof the HYST pin.
