LM56BIMM/NOPB National Semiconductor, LM56BIMM/NOPB Datasheet - Page 9
LM56BIMM/NOPB
Manufacturer Part Number
LM56BIMM/NOPB
Description
IC, LOW POWER THERMOSTAT, ± 2°C, 8-SOIC
Manufacturer
National Semiconductor
Datasheet
1.LM56BIMMNOPB.pdf
(14 pages)
Specifications of LM56BIMM/NOPB
Ic Output Type
Digital
Sensing Accuracy Range
± 2°C
Supply Current
230µA
Supply Voltage Range
2.7V To 10V
Sensor Case Style
SOIC
No. Of Pins
8
Msl
MSL 1 - Unlimited
Termination Type
SMD
Rohs Compliant
Yes
Filter Terminals
SMD
Temperature Sensor Function
Temp Sensor
Output Type
Digital
Package Type
MSOP
Operating Temperature (min)
-40C
Operating Temperature (max)
125C
Operating Temperature Classification
Automotive
Operating Supply Voltage (min)
2.7V
Operating Supply Voltage (typ)
3.3/5/9V
Operating Supply Voltage (max)
10V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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3.0 MOUNTING CONSIDERATIONS
The majority of the temperature that the LM56 is measuring
is the temperature of its leads. Therefore, when the LM56 is
placed on a printed circuit board, it is not sensing the tem-
perature of the ambient air. It is actually sensing the temper-
ature difference of the air and the lands and printed circuit
board that the leads are attached to. The most accurate tem-
perature sensing is obtained when the ambient temperature
is equivalent to the LM56's lead temperature.
FIGURE 3. Simplified Schematic
9
As with any IC, the LM56 and accompanying wiring and cir-
cuits must be kept insulated and dry, to avoid leakage and
corrosion. This is especially true if the circuit operates at cold
temperatures where condensation can occur. Printed-circuit
coatings are often used to ensure that moisture cannot cor-
rode the LM56 or its connections.
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