LM60BIM3+ National Semiconductor, LM60BIM3+ Datasheet

LM60BIM3+

Manufacturer Part Number

LM60BIM3+

Description

Manufacturer

National Semiconductor

Datasheet

1.LM60BIM3XNOPB.pdf (11 pages)

Specifications of LM60BIM3+

Notes

NEW

Date_code

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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

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