Features
| | Digital outputs support TTL logic levels |
| | Internal temperature sensor |
| | 2 internal comparators with hysteresis |
| | Internal voltage reference |
| | Available in 8-pin SO and Mini-SO8 plastic packages |
Key Specification
| ■
Power Supply Voltage
|
2.7V–10V
|
| ■
Power Supply Current
|
230 μA (max)
|
| ■
VREF |
1.250V ±1% (max)
|
| ■
Hysteresis Temperature
|
5°C
|
| ■
Internal Temperature Sensor Output Voltage:
|
| (+6.20 mV/°C x T) + 395 mV
|
Temperature Trip Point Accuracy:
|
|
LM56BIM
|
LM56CIM
|
| +25°C
|
±2°C (max)
|
±3°C (max)
|
| +25°C to +85°C
|
±2°C (max)
|
±3°C (max)
|
| −40°C to +125°C
|
±3°C (max)
|
±4°C (max)
|
General Description
The LM56 is a precision low power thermostat. More...
Applications
| | Microprocessor Thermal Management |
| | Appliances |
| | Portable Battery Powered 3.0V or 5V Systems |
| | Fan Control |
| | Industrial Process Control |
| | HVAC Systems |
| | Remote Temperature Sensing |
| | Electronic System Protection |
| |
Typical Application
click for larger image
| Parameters | Values |
| SetPoint Type |
Resistor Selectable |
| Temperature Accuracy (+/-) |
2, 3 deg C |
| Supply Min |
2.7 Volt |
| Temperature Min |
-40 deg C |
| Temperature Max |
125 deg C |
| Quiescent Current_ |
230 uA |
| Comparators |
2 |
| Sensor Gain |
6.2 mV/Deg C |
| Remote Diode Thermal Sensors |
Undefined |
| Supply Max |
10 Volt |
| VtempOutput Impedance |
1500 Ohm |
| Reference Output |
1.25 Volt |
| Quiescent Current |
0.23 mA |
| PowerWise |
Yes |
Typical Performance
click for larger image
| |
Additional Resources
Application Notes

Block Diagram
*click for larger image
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