Rainbow-electronics LM60 Manuel d'utilisateur

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LM60
2.7V, SOT-23 or TO-92 Temperature Sensor
General Description
The LM60 is a precision integrated-circuit temperature sen-
sor that can sense a −40˚C to +125˚C temperature range
while operating from a single +2.7V supply. The LM60’s
output voltage is linearly proportional to Celsius (Centigrade)
temperature (+6.25 mV/˚C) and has a DC offset of +424 mV.
The offset allows reading negative temperatures without the
need for a negative supply. The nominal output voltage of the
LM60 ranges from +174 mV to +1205 mV for a −40˚C to
+125˚C temperature range. The LM60 is calibrated to pro-
vide accuracies of
±
2.0˚C at room temperature and
±
3˚C
over the full −25˚C to +125˚C temperature range.
The LM60’s linear output, +424 mV offset, and factory cali-
bration simplify external circuitry required in a single supply
environment where reading negative temperatures is re-
quired. Because the LM60’s quiescent current is less than
110 µA, self-heating is limited to a very low 0.1˚C in still air in
the SOT-23 package. Shutdown capability for the LM60 is
intrinsic because its inherent low power consumption allows
it to be powered directly from the output of many logic gates.
Features
n Calibrated linear scale factor of +6.25 mV/˚C
n Rated for full −40˚ to +125˚C range
n Suitable for remote applications
n Available in SOT-23 and TO-92 packages
Applications
n Cellular Phones
n Computers
n Power Supply Modules
n Battery Management
n FAX Machines
n Printers
n HVAC
n Disk Drives
n Appliances
Key Specifications
n Accuracy at 25˚C:
±
2.0 and
±
3.0˚C (max)
n Accuracy for −40˚C to +125˚C:
±
4.0˚C (max)
n Accuracy for −25˚C to +125˚C:
±
3.0˚C (max)
n Temperature Slope: +6.25mV/˚C
n Power Supply Voltage Range: +2.7V to +10V
n Current Drain
@
25˚C: 110µA (max)
n Nonlinearity:
±
0.8˚C (max)
n Output Impedance: 800 (max)
Typical Application
Connection Diagrams
SOT-23
01268101
Top View
See NS Package Number MA03B
TO-92
01268123
See NS Package Number Z03A
01268102
V
O
= (+6.25 mV/˚C x T ˚C) + 424 mV
Temperature (T) Typical V
O
+125˚C +1205 mV
+100˚C +1049 mV
+25˚C +580 mV
0˚C +424 mV
−25˚C +268 mV
−40˚C +174 mV
FIGURE 1. Full-Range Centigrade Temperature Sensor
(−40˚C to +125˚C) Operating from a Single Li-Ion
Battery Cell
July 2001
LM60 2.7V, SOT-23 or TO-92 Temperature Sensor
© 2001 National Semiconductor Corporation DS012681 www.national.com
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Résumé du contenu

Page 1 - and factory cali

LM602.7V, SOT-23 or TO-92 Temperature SensorGeneral DescriptionThe LM60 is a precision integrated-circuit temperature sen-sor that can sense a −40˚C t

Page 2 - Ordering Information

Ordering InformationOrderNumberDeviceMarkingSupplied InAccuracy OverSpecifiedTemperatureRangeSpecifiedTemperatureRangePackage TypeLM60BIM3 T6B 1000 Un

Page 3 - Electrical Characteristics

Absolute Maximum Ratings (Note 1)Supply Voltage +12V to −0.2VOutput Voltage (+VS+ 0.6V) to−0.6VOutput Current 10 mAInput Current at any pin (Note 2) 5

Page 4 - Figure 2

Electrical Characteristics (Continued)Note 10: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Cha

Page 5 - 1.0 Mounting

Typical Performance Characteristics To generate these curves the LM60 was mounted to aprinted circuit board as shown inFigure 2. (Continued)Supply Vol

Page 6 - 2.0 Capacitive Loads

1.0 Mounting (Continued)2.0 Capacitive LoadsThe LM60 handles capacitive loading well. Without any spe-cial precautions, the LM60 can drive any capacit

Page 7 - 3.0 Applications Circuits

2.0 Capacitive Loads (Continued)3.0 Applications Circuits01268117FIGURE 6. Simplified Schematic01268118FIGURE 7. Centigrade Thermostat01268119FIGURE 8

Page 8 - NS Package Number MA03B

Physical Dimensions inches (millimeters)unless otherwise notedSOT-23 Molded Small Outline Transistor Package (M3)Order Number LM60BIM3 or LM60CIM3NS P

Page 9 - Package Number Z03A

Physical Dimensions inches (millimeters) unless otherwise noted (Continued)TO-92 Molded Plastic Package (Z)Order Number LM60BIZ or LM60CIZPackage Numb

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