LM77CIMX-5

更新时间： 2024-11-22 22:22:39

品牌	Logo	应用领域
美国国家半导体 - NSC		比较器传感器换能器温度传感器输出元件
页数	文件大小	规格书
17页	377K
描述
9-Bit Sign Digital Temperature Sensor and Thermal Window Comparator with Two-Wire Interface

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技术参数
数据手册

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LM77CIMX-5 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
包装说明：	0.150 INCH, PLASTIC, MS-012AA, SOP-8	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.12	Is Samacsys：	N
最大精度（摄氏度）：	3 Cel	主体宽度：	3.9 mm
主体高度：	1.72 mm	主体长度或直径：	4.89 mm
外壳：	PLASTIC	JESD-609代码：	e0
安装特点：	SURFACE MOUNT	位数：	10
端子数量：	8	最大工作电流：	0.25 mA
最高工作温度：	125 °C	最低工作温度：	-55 °C
输出接口类型：	2-WIRE INTERFACE	封装主体材料：	PLASTIC/EPOXY
封装等效代码：	SOP8,.25	封装形状/形式：	RECTANGULAR
电源：	5 V	传感器/换能器类型：	TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL
子类别：	Other Sensors	最大供电电压：	5.5 V
最小供电电压：	3 V	表面贴装：	YES
技术：	CMOS	温度系数：	POSITIVE ppm/ °C
端子面层：	Tin/Lead (Sn/Pb)	端接类型：	SOLDER
Base Number Matches：	1

LM77CIMX-5 数据手册

July 2001

LM77

9-Bit + Sign Digital Temperature Sensor and Thermal

Window Comparator with Two-Wire Interface

General Description

Features

n Window comparison simplifies design of ACPI

compatible temperature monitoring and control.

n Serial Bus interface

The LM77 is a digital temperature sensor and thermal win-

™

dow comparator with an I C Serial Bus interface. The

window-comparator architecture of the LM77 eases the de-

sign of temperature control systems conforming to the ACPI

(Advanced Configuration and Power Interface) specification

for personal computers. The open-drain Interrupt (INT) out-

put becomes active whenever temperature goes outside a

programmable window, while a separate Critical Tempera-

ture Alarm (T_CRIT_A) output becomes active when the

temperature exceeds a programmable critical limit. The INT

output can operate in either a comparator or event mode,

while the T_CRIT_A output operates in comparator mode

only.

n Separate open-drain outputs for Interrupt and Critical

Temperature shutdown

n Shutdown mode to minimize power consumption

n Up to 4 LM77s can be connected to a single bus

n 9-bit + sign output; full-scale reading of over 128˚C

n SOP and MSOP 8-lead packages

Key Specifications

Supply Voltage

Supply Current

3.0V to 5.5V

250 µA (typ)

500 µA (max)

5 µA (typ)

The host can program both the upper and lower limits of the

window as well as the critical temperature limit. Program-

mable hysterisis as well as a fault queue are available to

minimize false tripping. Two pins (A0, A1) are available for

address selection. The sensor powers up with default thresh-

olds of 2˚C T_HYST, 10˚C T_LOW, 64˚C T_HIGH, and 80˚C

T_CRIT.

operating

shutdown

1.5˚C(max)

Temperature

−10˚C to 65˚C

Accuracy

−25˚C to 100˚C

−55˚C to 125˚C

2˚C(max)

3˚C(max)

The LM77’s 3.0V to 5.5V supply voltage range, Serial Bus

interface, 9-bit + sign output, and full-scale range of over

128˚C make it ideal for a wide range of applications. These

include thermal management and protection applications in

personal computers, electronic test equipment, office elec-

tronics, automotive, and HVAC applications.

Applications

n System Thermal Management

n Personal Computers

n Office Electronics

n Electronic Test Equipment

n Automotive

n HVAC

C^®is a registered trademark of Philips Corporation.

DS100136

www.national.com

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与LM77CIMX-5相关器件

型号	品牌	获取价格	描述	数据表
LM77CIMX-5/NOPB	TI	获取价格	9-Bit Sign Digital Temperature Sensor
LM77CIMX-5/NOPB	NSC	获取价格	Switch/Digital Output Temperature Sensor, DIGITAL TEMP SENSOR-SERIAL, 10BIT(s), 3Cel, RECT
LM78	NSC	获取价格	Microprocessor System Hardware Monitor
LM78	TI	获取价格	LM340-N/LM78XX Series 3-Terminal Positive Regulators
LM78	TAITRON	获取价格	1A Positive Voltage Regulator
LM7800	FCI	获取价格	LM7800 Series 3-Terminal fixed Voltage Regulators
LM7800	NSC	获取价格	3-Terminal Positive Voltage Regulators
LM7800	TI	获取价格	1.5A、30V 线性稳压器
LM7800-220M	SEME-LAB	获取价格	POSITIVE VOLTAGE REGULATOR TO 220 M
LM7800C	NSC	获取价格	Series 3-Terminal Positive Regulators

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