Hot-selling and scarce LM27CIM5-1HJ/NOPB ±3°C Accurate, 120°C-150°C Factory Preset Thermostat SOT23-5 spot stock

Product Descriptions

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The LM27 is a precision,  single digital-output,  lowpower thermostat comprised of an internal reference,DAC,  temperature sensor and comparator .  Utilizingfactory programming,  it  can be manufactured withdifferent trip points as well  as different digital  outputfunctionality . The trip point (TOS) can be preset at thefactory to any temperature in the range of +120°C to+150°C in 1°C increments . The LM27 has one digitaloutput (OS/OS/US/US), one digital  input (HYST) andone analog output (VTEMP) . The digital  output stagecan be preset as either open-drain or push-pull .  Inaddition, it can be factory programmed to be activeHIGH or  LOW .  The digital   output  can be factoryprogrammed  to  indicate an  over   temperatureshutdown event (OS or OS) or an under temperatureshutdown event  (US or  US) .  When preset  as anovertemperature shutdown (OS) it  will  go LOW toindicate that the die temperature is over the internallypreset T_OS and go HIGH when the temperature goesbelow (T_OS–THYST) .  Similarly, when preprogrammedas an undertemperature shutdown (US)  it  will   goHIGH to indicate that the temperature is below T_USand go LOW when the temperature is above(T_US+THYST) . The typical hysteresis, T_HYST , can be setto 2°C or 10°C and is controlled by the state of theHYST pin . A V_TEMP analog output provides a voltagethat   is proportional    to temperature and has a−10 . 7mV/°C output slope .

Product Features

•   Internal Comparator with Pin Selectable 2°C or 10°C Hysteresis

•   No External Components Required

•   Open-drain or Push-pull Digital Output;Supports CMOS Logic Levels

•   Internal Temperature Sensor with VTEMP Output Pin

•   VTEMP Output Allows After-assembly System Testing

•   Internal Voltage Reference and DAC for Trip point Setting

•   Currently Available in 5-pin SOT-23 Plastic Package

•   Excellent Power Supply Noise Rejection

Product Applications

•   Microprocessor Thermal Management

•   Appliances

•   Portable Battery Powered Systems

•   Fan Control

•   Industrial Process Control

•   HVAC Systems

•   Electronic System Protection

Product Specifications

Product Photos

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