LM75CIMM-3 National Semiconductor, LM75CIMM-3 Datasheet

LM75CIMM-3

Manufacturer Part Number

LM75CIMM-3

Description

Temperature Sensor IC

Manufacturer

National Semiconductor

Datasheets

1.LM75CIMM-3.pdf (18 pages)

2.LM75CIMM-3.pdf (16 pages)

3.LM75CIMM-3.pdf (18 pages)

Specifications of LM75CIMM-3

Peak Reflow Compatible (260 C)

Ic Function

Temperature Sensor IC

Supply Voltage Max

5.5V

Leaded Process Compatible

Mounting Type

Surface Mount

Supply Voltage Min

Operating Temperature Min

-55Â°C

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

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Download datasheet (309Kb)

LM75

Digital Temperature Sensor and Thermal WATCHDOG

with Two-Wire Interface

General Description

The

analog-to-digital converter, and digital over-temperature de-

tector with I

any time to read temperature. The open-drain Overtempera-

ture Shutdown (O.S.) output becomes active when the tem-

perature 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 pow-

ers up in Comparator mode with default thresholds of 80˚C

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

current and I

plications. These include thermal management and protec-

tion applications in personal computers, electronic test

equipment, and office electronics.

Simplified Block Diagram

WATCHDOG

I 2 C

is a registered trademark of Philips Corporation.

) and the temperature at which the alarm condition goes

and 75˚C T

LM75

HYST

™

is a trademark of National Semiconductor Corporation.

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

C interface make it ideal for a wide range of ap-

HYST

interface. The host can query the LM75 at

temperature

and T

HYST

registers. Three pins (A0,

sensor,

DS012658

Delta-Sigma

Features

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

n I

n Separate open-drain output pin operates as interrupt or

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

Key Specifications

Applications

n System Thermal Management

n Personal Computers

n Office Electronics

n Electronic Test Equipment

n Supply Voltage

n Supply Current

n Temperature Accuracy

comparator/thermostat output

thermostat

C Bus interface

−25˚C to 100˚C

−55˚C to 125˚C

shutdown

operating

DS012658-1

January 2000

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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