Datasheet4U Logo Datasheet4U.com

LM56 - Dual Output Low Power Thermostat

Description

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.

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 Supply Current n VREF n Hysteresis Temperature n Internal Temperature Sensor Output Voltage (+6.20 mV/˚C x T) +395 mV n Temperature Trip Point Accuracy: LM56BIM +25˚C +25˚C to +85˚C.
  • 40˚C to +125˚.

📥 Download Datasheet

Datasheet preview – LM56

Datasheet Details

Part number LM56
Manufacturer National Semiconductor
File Size 370.72 KB
Description Dual Output Low Power Thermostat
Datasheet download datasheet LM56 Datasheet
Additional preview pages of the LM56 datasheet.

📁 Similar Datasheet

  • LM56 - Dual Output Low Power Thermostat (Texas Instruments)
  • LM561C - Middle Power LED (Samsung)
  • LM5623-11 - THREE DIGIT DISPLAY (Ledtech)
  • LM5623-11EWRN - THREE DIGIT DISPLAY (Ledtech)
  • LM5642 - Dual Synchronous Buck Converter (Texas Instruments)
  • LM5642X - Dual Synchronous Buck Converter (Texas Instruments)
  • LM567 - Tone Decoder (Texas Instruments)
  • LM567 - Tone Decoder (HGSemi)
  • LM567C - Tone Decoder (Texas Instruments)
  • LM567C - Tone Decoder (HGSemi)
Other Datasheets by National Semiconductor
  • LM5642 - High Voltage/ Dual Synchronous Buck Converter
  • LM565 - Phase Locked Loop
  • LM566C - LM566C Voltage Controlled Oscillator
  • LM567 - Tone Decoder
  • LM567C - Tone Decoder
  • LM50 - SOT-23 Single-Supply Centigrade Temperature Sensor
  • LM5000 - Regulator
  • LM5000EP - Regulator

Full PDF Text Transcription

Click to expand full text
LM56 Dual Output Low Power Thermostat April 2000 LM56 Dual Output Low Power Thermostat General Description 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 the temperature goes below (T1–THYST). Similarly, OUT2 goes LOW when the temperature exceeds T2 and goes HIGH when the temperature goes below (T2–THYST). THYST is an internally set 5˚C typical hysteresis. The LM56 is available in an 8-lead Mini-SO8 surface mount package and an 8-lead small outline package.
Published: |