LM75CIM-5 National Semiconductor, LM75CIM-5 Datasheet

LM75CIM-5

Manufacturer Part Number

LM75CIM-5

Description

Temperature Sensor IC

Manufacturer

National Semiconductor

Datasheets

1.LM75BIMMX-3.pdf (18 pages)

2.LM75CIMM-3.pdf (16 pages)

3.LM75CIMM-3.pdf (18 pages)

Specifications of LM75CIM-5

Mounting Type

Surface Mount

Supply Voltage Min

Operating Temperature Max

125Â°C

Peak Reflow Compatible (260 C)

Ic Function

Temperature Sensor IC

Supply Voltage Max

5.5V

Leaded Process Compatible

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

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Download datasheet (354Kb)

LM75

Digital Temperature Sensor and Thermal Watchdog with

Two-Wire Interface

General Description

The LM75 is a temperature sensor, Delta-Sigma analog-to-

digital converter, and digital over-temperature detector with

read temperature. The open-drain Overtemperature Shut-

down (O.S.) output becomes active when the temperature

exceeds a programmable limit. This pin can operate in either

“Comparator” or “Interrupt” mode.

The host can program both the temperature alarm threshold

away (T

tents of the LM75’s T

A1, A2) are available for address selection. The sensor

powers up in Comparator mode with default thresholds of

80˚C T

The LM75’s 3.0V to 5.5V supply voltage range, low supply

current and I

applications. These include thermal management and pro-

tection applications in personal computers, electronic test

equipment, and office electronics.

Features

n SOP-8 and Mini SOP-8 (MSOP) packages save space

n I

n Separate open-drain output pin operates as interrupt or

Simplified Block Diagram

I 2 C

comparator/thermostat output

C Bus interface

is a registered trademark of Philips Corporation.

) and the temperature at which the alarm condition goes

interface. The host can query the LM75 at any time to

HYST

and 75˚C T

). In addition, the host can read back the con-

C interface make it ideal for a wide range of

HYST

and T

HYST

registers. Three pins (A0,

DS012658

n Register readback capability

n Power up defaults permit stand-alone operation as

n Shutdown mode to minimize power consumption

n Up to 8 LM75s can be connected to a single bus

n UL Recognized Component

Key Specifications

Applications

n System Thermal Management

n Personal Computers

n Office Electronics

n Electronic Test Equipment

thermostat

Supply Voltage

Supply Current

Temperature Accuracy

operating

shutdown

−25˚C to 100˚C

−55˚C to 125˚C

01265801

February 2004

www.national.com

3.0V to 5.5V

250 µA (typ)

1 mA (max)

4 µA (typ)

2˚C(max)

3˚C(max)

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