LM60 NSC | Alldatasheet

Document overview

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Technical content

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 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: 800Ω (max) Typical Application Connection Diagrams SOT-23 01268101 Top View See NS Package Number MA03B TO-92 01268123 See NS Package Number Z03A 01268102 VO = (+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

Ordering Information

LM60BIM3 T6B 1000 Units on Tape and Reel ±3 −25˚C ≤ TA ≤ +125˚C SOT-23LM60BIM3X T6B 3000 Units on Tape and Reel LM60CIM3 T6C 1000 Units on Tape and Reel ±4 −40˚C ≤ TA ≤ +125˚CLM60CIM3X T6C 3000 Units on Tape and Reel LM60BIZ LM60BIZ Bulk ±3 −25˚C ≤ TA ≤ +125˚C TO-92LM60CIZ LM60CIZ Bulk ±4 −40˚C ≤ TA ≤ +125˚C LM60 www.national.com 2

Absolute Maximum Ratings (Note 1) Supply Voltage +12V to −0.2V Output Voltage (+V S + 0.6V) to −0.6V Output Current 10 mA Input Current at any pin (Note 2) 5 mA ESD Susceptibility (Note 3) : Human Body Model 2500V Machine Model SOT-23 TO-92 250V 200V Recommended Lead Temperature (Note 4): Vapor Phase (60 sec) Infrared (15 sec) +215˚C +220˚C +240˚C Storage Temperature −65˚C to +150˚C Maximum Junction Temperature JMAX ) +125˚C Operating Ratings(Note 1) Specified Temperature Range: TMIN ≤ TA ≤ TMAX LM60B −25˚C ≤ TA ≤ +125˚C LM60C −40˚C ≤ TA ≤ +125˚C Supply Voltage Range (+VS) +2.7V to +10V Thermal Resistance,θJA (Note SOT-23 TO-92 450˚C/W 180˚C/W

Electrical Characteristics

Unless otherwise noted, these specifications apply for +VS = +3.0 VDC and ILOAD = 1 µA.Boldface limits apply for TA =T J =T MIN to TMAX ; all other limits TA =T J = 25˚C. Parameter Conditions Typical (Note 6) LM60B LM60C Units (Limit)Limits Limits (Note 7) (Note 7) Accuracy (Note 8) ±2.0 ±3.0 ˚C (max) ±3.0 ±4.0 ˚C (max) Output Voltage at 0˚C +424 mV Nonlinearity (Note 9) ±0.6 ±0.8 ˚C (max) Sensor Gain +6.25 +6.06 +6.00 mV/˚C (min) (Average Slope) +6.44 +6.50 mV/˚C (max) Output Impedance 800 800 Ω (max) Line Regulation (Note 10) +3.0V ≤ +V S ≤ +10V ±0.3 ±0.3 mV/V (max) Quiescent Current +2.7V ≤ +V S ≤ +10V 82 110 110 µA (max) 125 125 µA (max) Change of Quiescent Current +2.7V ≤ +V S ≤ +10V ±5.0 µA (max) Temperature Coefficient of 0.2 µA/˚C Quiescent Current Long Term Stability (Note 11) T J=TMAX =+125˚C, for ±0.2 ˚C 1000 hours Note 1:Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. Note 2:When the input voltage (VI) at any pin exceeds power supplies (VI < GND or VI > +V S), the current at that pin should be limited to 5 mA. Note 3:The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin. The machine model is a 200 pF capacitor discharged directly into each pin. Note 4:See the URL ”http://www.national.com/packaging/“ for other recomdations and methods of soldering surface mount devices. Note 5:The junction to ambient thermal resistance (θJA) is specified without a heat sink in still air. Note 6:Typicals are at TJ =T A = 25˚C and represent most likely parametric norm. Note 7:Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level). Note 8:Accuracy is defined as the error between the output voltage and +6.25 mV/˚C times the device’s case temperature plus 424 mV, at specified conditions of voltage, current, and temperature (expressed in ˚C). Note 9:Nonlinearity is defined as the deviation of the output-voltage-versus-temperature curve from the best-fit straight line, over the device’s rated temperature range. LM60 www.national.com3

Electrical Characteristics(Continued) Note 10:Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output due to heating effects can be computed by multiplying the internal dissipation by the thermal resistance. Note 11:For best long-term stability, any precision circuit will give best results if the unit is aged at a warm temperature, and/or temperature cycled for at least 46 hours before long-term life test begins. This is especially true when a small (Surface-Mount) part is wave-soldered; allow time for stress relaxation to occur. The majority of the drift will occur in the first 1000 hours at elevated temperatures. The drift after 1000 hours will not continue at the first 1000 hour rate. Typical Performance CharacteristicsTo generate these curves the LM60 was mounted to a printed circuit board as shown inFigure 2. Thermal Resistance Junction to Air Thermal Time Constant Thermal Response in Still Air with Heat Sink 01268103 01268104 01268105 Thermal Response in Stirred Oil Bath with Heat Sink Start-Up Voltage vs. Temperature Thermal Response in Still Air without a Heat Sink 01268106 01268107 01268108 Quiescent Current vs. Temperature Accuracy vs Temperature Noise Voltage 01268109 01268110 01268111 LM60 www.national.com 4

1.0 Mounting

ture that LM60’s leads are attached to. mal resistance for different conditions. FIGURE 2. Printed Circuit Board Used for Heat Sink to Generate All Curves. with 2 oz. Copper Foil or Similar.

1.0 Mounting (Continued)

2.0 Capacitive Loads

Figure 4. Over the specified temperature range the *-Part soldered to 30 gauge wire. **-Heat sink used is1⁄2" square printed circuit board with 2 oz. foil with part attached as shown inFigure 2. ***-Part glued or leads soldered to 1” square of 1/16” printed circuit board with 2 oz. foil or similar. FIGURE 3. Temperature Rise of LM60 Due to FIGURE 4. LM60 No Decoupling Required for FIGURE 5. LM60 with Filter for Noisy Environment

2.0 Capacitive Loads(Continued)

3.0 Applications Circuits

FIGURE 6. Simplified Schematic FIGURE 7. Centigrade Thermostat FIGURE 8. Conserving Power Dissipation with Shutdown

Physical Dimensionsinches (millimeters) unless otherwise noted SOT-23 Molded Small Outline Transistor Package (M3) Order Number LM60BIM3 or LM60CIM3 LM60 www.national.com 8

Physical Dimensionsinches (millimeters) unless otherwise noted (Continued) TO-92 Molded Plastic Package (Z) Order Number LM60BIZ or LM60CIZ Package Number Z03A LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. National Semiconductor Corporation Americas Email: support@nsc.com National Semiconductor Europe Fax: +49 (0) 180-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Français Tel: +33 (0) 1 41 91 8790 National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: ap.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 www.national.com LM60 2.7V, SOT-23 or TO-92 Temperature Sensor National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.