Datasheet > LM75

LM75

更新时间： 2024-11-23 22:47:03

品牌	Logo	应用领域
安森美 - ONSEMI		传感器温度传感器监控
页数	文件大小	规格书
12页	154K
描述
2-Wire Serial Temperature Sensor and Monitor

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中文翻译

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数据手册

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LM75 数据手册

The LM75 is a serially programmable temperature sensor that

notifies the host controller when ambient temperature exceeds a

user–programmed setpoint. Hysteresis is also programmable. The

INT/CMPTR output is programmable as either a simple comparator

for thermostat operation or as a temperature event interrupt.

Communication with the LM75 is accomplished via a two–wire bus

that is compatible with industry standard protocols. This permits

reading the current temperature, programming the setpoint and

hysteresis, and configuring the device.

http://onsemi.com

The LM75 powers up in Comparator Mode with a default setpoint

of 80°C with 5°C hysteresis. Defaults allow independent operation as

a stand–alone thermostat. A shutdown command may be sent via the

2–wire bus to activate the low–power standby mode. Address

selection inputs allow up to eight LM75’s to share the same 2–wire bus

for multi–zone monitoring.

Micro8

DM SUFFIX

CASE TBD

PRELIMINARY INFORMATION

All registers can be read by the host and the INT/CMPTR output’s

polarity is user programmable. Both polled and interrupt driven

systems are easily accommodated. Small physical size, low installed

cost, and ease of use make the LM75 an ideal choice for implementing

sophisticated system management schemes.

PIN CONFIGURATION

(Top View)

SDA

SCL

LM75

INT/CMPTR 3

GND 4

6 A1

5 A2

Features

• Temperature Sensing: 0.5°C Accuracy (Typ.)

• Operates from: 55°C to +125°C

• Operating Range: 2.7V – 5.5V

• Programmable Trip Point and Hysteresis with

Power–up Defaults

• Standard 2–Wire Serial Interface

• Thermal Event Alarm Output Functions as Interrupt or Comparator /

Thermostat Output

ORDERING INFORMATION

Device

Package

Shipping

• Up to 8 LM75’s May Share the Same Bus

• Shutdown Mode for Low Standby Power Consumption

LM75DM–33R2

LM75DM–50R2

Micro–8

2500 Tape/Reel

• 5V Tolerant I/O at V

= 3V

Micro–8

• Low Power 250µA (Typ.) Operating, 1µA (Typ.)

Shutdown Mode

Typical Applications

• Thermal Protection for High Performance CPUs

• Solid–State Thermometer

• Fire/Heat Alarms

• Thermal Management in Electronic Systems:

Computers

Telecom Racks

Power Supplies / UPS

• Copiers / Office Electronics

• Consumer Electronics / Amplifiers

• Process Control

Semiconductor Components Industries, LLC, 1999

Publication Order Number:

February, 2000 – Rev. 0

LM75/D

12 3 4 5 6 7...12

中文翻译

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与LM75相关器件

型号	品牌	获取价格	描述	数据表
LM75/D	ETC	获取价格	2-Wire Serial Temperature Sensor and Monitor
LM75_05	NSC	获取价格	Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface
LM750Z	SEOUL	获取价格	GREEN OVAL LAMP LED
LM751	SEOUL	获取价格	INFRARED LAMP LED
LM7512C	ETC	获取价格
LM7534J	NSC	获取价格	IC,SENSE AMPLIFIER,BIPOLAR,DIP,16PIN,CERAMIC
LM7534J/A+	ETC	获取价格	Core-Memory Sense Amplifier
LM7534N	NSC	获取价格	IC,SENSE AMPLIFIER,BIPOLAR,DIP,16PIN,PLASTIC
LM7534N/A+	ETC	获取价格	Core-Memory Sense Amplifier
LM7534N/B+	ETC	获取价格	Core-Memory Sense Amplifier

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