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3°C Dual output resistor-programmable temperature switch with fan control

Inventory: 86,324  

Quality information

RoHS Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-1-260C-UNLIM
Quality, reliability
& packaging information

Information included:

  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Packaging information

Package | Pins Package qty | Carrier: Operating temperature range (°C)
VSSOP (DGK) | 8 1,000 | SMALL T&R
-40 to 125
Package | Pins VSSOP (DGK) | 8
Package qty | Carrier: 1,000 | SMALL T&R
Operating temperature range (°C) -40 to 125
View TI packaging information

Features for the LM56

  • Digital Outputs Support TTL Logic Levels
  • Internal Temperature Sensor
  • 2 Internal Comparators with Hysteresis
  • Internal Voltage Reference
  • Available in 8-pin SOIC and VSSOP Packages

Description for the LM56

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 VSSOP surface mount package and an 8-lead SOIC.


Qty Price (USD)
1-99 1.431
100-249 1.182
250-999 0.849
1,000+ 0.639

Additional package qty | carrier options

Package qty | Carrier 3,500 | LARGE T&R
Inventory 549,061
Qty | Price (USD) 1ku | 0.639 1-99 1.431 100-249 1.182 250-999 0.849 1,000+ 0.639
Custom reel may be available