lm60c-mda National Semiconductor Corporation, lm60c-mda Datasheet

lm60c-mda

Manufacturer Part Number

lm60c-mda

Description

2.7v, Sot-23 Or To-92 Temperature Sensor

Manufacturer

National Semiconductor Corporation

Datasheet

1.LM60C-MDA.pdf (11 pages)

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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

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

Typical Application

FIGURE 1. Full-Range Centigrade Temperature Sensor

= (+6.25 mV/˚C x T ˚C) + 424 mV

(−40˚C to +125˚C) Operating from a Single Li-Ion

Temperature (T)

+125˚C

+100˚C

+25˚C

−25˚C

−40˚C

0˚C

2.0˚C at room temperature and

Battery Cell

Typical V

+1205 mV

+1049 mV

+580 mV

+424 mV

+268 mV

+174 mV

DS012681

01268102

3˚C

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:

n Accuracy for −40˚C to +125˚C:

n Accuracy for −25˚C to +125˚C:

n Temperature Slope:

n Power Supply Voltage Range:

n Current Drain

n Nonlinearity:

n Output Impedance:

Connection Diagrams

See NS Package Number mf03a

See NS Package Number Z03A

25˚C:

0.8˚C (max)

800Ω (max)

Top View

+6.25mV/˚C

2.0 and

SOT-23

TO-92

110µA (max)

01268123

+2.7V to +10V

3.0˚C (max)

01268101

4.0˚C (max)

3.0˚C (max)

www.national.com

August 2005

Related parts for lm60c-mda

lm60c-mda Summary of contents

Page 1

... FIGURE 1. Full-Range Centigrade Temperature Sensor (−40˚C to +125˚C) Operating from a Single Li-Ion Battery Cell © 2005 National Semiconductor Corporation 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 ...

Page 2

... Top Mark LM60BIM3 T6B LM60BIM3X T6B LM60CIM3 T6C LM60CIM3X T6C LM60BIZ LM60BIZ LM60CIZ LM60CIZ www.national.com Accuracy Over Specified Supplied In Temperature Range 1000 Units, Tape and Reel 3000 Units, Tape and Reel 1000 Units, Tape and Reel 3000 Units, Tape and Reel Bulk ...

Page 3

... specified without a heat sink in still air (Note 1) ≤ MIN −25˚C ≤ T −40˚C ≤ +2.7V to +10V S (Note µA. Boldface limits apply for T LOAD LM60B LM60C Limits Limits (Note 7) (Note 7) ± ± 2.0 3.0 ± ± 3.0 4.0 ± ± 0.6 0.8 +6.06 +6.00 mV/˚C (min) +6 ...

Page 4

Typical Performance Characteristics printed circuit board as shown in Figure 2. Thermal Resistance Junction to Air Thermal Response in Still Air with Heat Sink Start-Up Voltage vs. Temperature www.national.com To generate these curves the LM60 was mounted to a Thermal ...

Page 5

Typical Performance Characteristics circuit board as shown in Figure 2. (Continued) Quiescent Current vs. Temperature Noise Voltage Start-Up Response To generate these curves the LM60 was mounted to a printed Accuracy vs Temperature 01268109 01268111 01268122 5 01268110 Supply Voltage ...

Page 6

Typical Performance Characteristics circuit board as shown in Figure 2. (Continued) 1.0 Mounting The LM60 can be applied easily in the same way as other integrated-circuit temperature sensors. It can be glued or cemented to a surface. The temperature that ...

Page 7

Mounting (Continued) SOT-23* no heat sink θ (˚C/W) (˚C) Still air 450 0.17 Moving air *-Part soldered to 30 gauge wire. **-Heat sink used is 1 ⁄ " square printed circuit board with 2 oz. foil ...

Page 8

Capacitive Loads www.national.com (Continued) FIGURE 6. Simplified Schematic 8 01268117 ...

Page 9

Applications Circuits FIGURE 8. Conserving Power Dissipation with Shutdown FIGURE 7. Centigrade Thermostat 9 01268118 01268119 www.national.com ...

Page 10

... Physical Dimensions SOT-23 Molded Small Outline Transistor Package (M3) www.national.com inches (millimeters) unless otherwise noted Order Number LM60BIM3 or LM60CIM3 NS Package Number mf03a 10 ...

Page 11

... English www.national.com Français Tel: +33 ( 8790 TO-92 Molded Plastic Package (Z) Order Number LM60BIZ or LM60CIZ Package Number Z03A 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 affect its safety or effectiveness ...

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