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LM56CIMM bảng dữ liệu(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
tên linh kiện LM56CIMM
Giải thích chi tiết về linh kiện  Dual Output Low Power Thermostat
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LM56CIMM bảng dữ liệu(HTML) 1 Page - National Semiconductor (TI)

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LM56
Dual Output Low Power Thermostat
General Description
The LM56 is a precision low power thermostat. Two stable
temperature trip points (V
T1 and VT2) are generated by divid-
ing 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–T
HYST).
Similarly, OUT2 goes LOW when the temperature exceeds
T2 and goes HIGH when the temperature goes below
(T2–T
HYST). 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.
Applications
n
Microprocessor Thermal Management
n
Appliances
n
Portable Battery Powered 3.0V or 5V Systems
n
Fan Control
n
Industrial Process Control
n
HVAC Systems
n
Remote Temperature Sensing
n
Electronic System Protection
Features
n
Digital outputs support TTL logic levels
n
Internal temperature sensor
n
2 internal comparators with hysteresis
n
Internal voltage reference
n
Currently available in 8-pin SO plastic package
n
Future availability in the 8-pin Mini-SO8 package
Key Specifications
n
Power Supply Voltage
2.7V–10V
n
Power Supply Current
230 µA (max)
n
V
REF
1.250V ±1% (max)
n
Hysteresis Temperature
5˚C
n
Internal Temperature Sensor
Output Voltage
(+6.20 mV/˚C x T) +395 mV
n
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)
Simplified Block Diagram and Connection Diagram
Order
Number
LM56BIM
LM56BIMX
LM56CIM
LM56CIMX
LM56BIMM
LM56BIMMX
LM56CIMM
LM56CIMMX
NS
Package
Number
M08A
M08A
M08A
M08A
MUA08A
MUA08A
MUA08A
MUA08A
SOP-8
SOP-8
SOP-8
SOP-8
MSOP-8
MSOP-8
MSOP-8
MSOP-8
Transport
Media
2500 Units
2500 Units
3500 Units
3500 Units
Rail
Tape &
Reel
Rail
Tape &
Reel
Rail
Tape & Reel
Rail
Tape & Reel
Package
Marking
LM56BIM
LM56BIM
LM56CIM
LM56CIM
T02B
T02B
T02C
T02C
DS012893-1
DS012893-2
April 2000
© 2000 National Semiconductor Corporation
DS012893
www.national.com


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