LM75CIMM-5 datasheet(1/18 Pages) NSC

部品番号	LM75CIMM-5

部品情報	Digital Temperature Sensor and Thermal WATCHDOG with Two-Wire Interface

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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

I

2C® interface. The host can query the LM75 at any time to

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

(T

OS) and the temperature at which the alarm condition goes

away (T

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

tents of the LM75’s T

OS and THYST registers. Three pins (A0,

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

powers up in Comparator mode with default thresholds of

80˚C T

OS and 75˚C THYST.

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

current and I

2C interface make it ideal for a wide range of

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

2C Bus interface

n

Separate open-drain output pin operates as interrupt or

comparator/thermostat output

n

Register readback capability

n

Power up defaults permit stand-alone operation as

thermostat

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

j Supply Voltage

3.0V to 5.5V

j Supply Current

operating

250 µA (typ)

1 mA (max)

shutdown

4 µA (typ)

j Temperature Accuracy

−25˚C to 100˚C

±2˚C(max)

−55˚C to 125˚C

±3˚C(max)

Applications

n

System Thermal Management

n

Personal Computers

n

Office Electronics

n

Electronic Test Equipment

Simplified Block Diagram

01265801

I2C® is a registered trademark of Philips Corporation.

February 2004

DS012658

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同様の部品番号 - LM75CIMM-5

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National Semiconductor ...	LM75CIMM-5	734Kb / 18P	Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface
Texas Instruments	LM75CIMM-5	422Kb / 20P	[Old version datasheet] LM75B LM75C Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface

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