LM62EVAL National Semiconductor, LM62EVAL Datasheet

LM62EVAL

Manufacturer Part Number

LM62EVAL

Description

EVALUATION BOARD FOR LM62

Manufacturer

National Semiconductor

Datasheets

1.LM62EVAL.pdf (8 pages)

2.LM62EVAL.pdf (7 pages)

Specifications of LM62EVAL

Sensor Type

Temperature

Sensing Range

0°C ~ 90°C

Interface

Analog

Sensitivity

±2°C

Voltage - Supply

2.7 V ~ 10 V

Embedded

Utilized Ic / Part

LM62

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

*LM62EVAL

Current page: 1 of 7
Download datasheet (641Kb)

LM62

2.7V, 15.6 mV/˚C SOT-23 Temperature Sensor

General Description

The LM62 is a precision integrated-circuit temperature sen-

sor that can sense a 0˚C to +90˚C temperature range while

operating from a single +3.0V supply. The LM62’s output

voltage is linearly proportional to Celsius (Centigrade) tem-

perature (+15.6 mV/˚C) and has a DC offset of +480 mV.

The offset allows reading temperatures down to 0˚C without

the need for a negative supply. The nominal output voltage of

the LM62 ranges from +480 mV to +1884 mV for a 0˚C to

+90˚C temperature range. The LM62 is calibrated to provide

accuracies of

−2.0˚C over the full 0˚C to +90˚C temperature range.

The LM62’s linear output, +480 mV offset, and factory cali-

bration simplify external circuitry required in a single supply

environment where reading temperatures down to 0˚C is

required. Because the LM62’s quiescent current is less than

130 µA, self-heating is limited to a very low 0.2˚C in still air.

Shutdown capability for the LM62 is intrinsic because its

inherent low power consumption allows it to be powered

directly from the output of many logic gates.

Connection Diagram

LM62BIM3

LM62BIM3X

LM62CIM3

LM62CIM3X

Number

Order

See NS Package Number mf03a

Top Mark

2.0˚C at room temperature and +2.5˚C/

Device

Ordering Information

T7C

T7B

Top View

SOT-23

1000 Units, Tape and Reel

3000 Units, Tape and Reel

1000 Units, Tape and Reel

3000 Units, Tape and Reel

10089301

Supplied As

DS100893

Features

n Calibrated linear scale factor of +15.6 mV/˚C

n Rated for full 0˚C to +90˚C range with 3.0V supply

n Suitable for remote applications

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 Temperature Slope

n Power Supply Voltage Range

n Current Drain

n Nonlinearity

n Output Impedance

Typical Application

FIGURE 1. Full-Range Centigrade Temperature Sensor

= (+15.6 mV/˚C x T˚C) + 480 mV

Temperature (T)

Stabilizing a Crystal Oscillator

+90˚C

+70˚C

+25˚C

25˚C

0˚C

(0˚C to +90˚C)

Typical V

+1884 mV

+1572 mV

+480 mV

870 mV

2.0 or

10089302

+2.7V to +10V

130 µA (max)

www.national.com

4.7 kΩ (max)

+15.6 mV/˚C

August 2005

3.0˚C (max)

0.8˚C (max)

Related parts for LM62EVAL

LM62EVAL Summary of contents

Page 1

... LM62CIM3 T7C 1000 Units, Tape and Reel LM62CIM3X T7C 3000 Units, Tape and Reel © 2005 National Semiconductor Corporation Features n Calibrated linear scale factor of +15.6 mV/˚C n Rated for full 0˚C to +90˚C range with 3.0V supply n Suitable for remote applications Applications ...

Page 2

Absolute Maximum Ratings Supply Voltage Output Voltage Output Current Input Current at any pin (Note 2) Storage Temperature Junction Temperature, max (T ) JMAX ESD Susceptibility (Note 3) : Human Body Model Electrical Characteristics Unless otherwise noted, these specifications apply ...

Page 3

Typical Performance Characteristics printed circuit board as shown in Figure 2. Thermal Resistance Junction to Air Thermal Response in Still Air with Heat Sink Thermal Response in Still Air without a Heat Sink To generate these curves the LM62 was ...

Page 4

Typical Performance Characteristics circuit board as shown in Figure 2. (Continued) Accuracy vs Temperature Supply Voltage vs Supply Current Circuit Board Printed Circuit Board Used for Heat Sink to Generate All Curves. www.national.com To generate these curves the LM62 was ...

Page 5

Mounting The LM62 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 the LM62 is sensing will be within about +0.2˚C of the ...

Page 6

Capacitive Loads 3.0 Applications Circuits FIGURE 8. Conserving Power Dissipation with Shutdown www.national.com (Continued) FIGURE 6. Simplified Schematic FIGURE 7. Centigrade Thermostat 6 10089317 10089318 10089319 ...

Page 7

... BANNED SUBSTANCE COMPLIANCE National Semiconductor manufactures products and uses packing materials that meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...

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