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LM75B_13

更新时间: 2024-11-23 12:02:11
品牌 Logo 应用领域
德州仪器 - TI 传感器温度传感器
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23页 1146K
描述
LM75C Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface

LM75B_13 数据手册

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LM75B, LM75C  
www.ti.com  
SNIS153B JULY 2009REVISED MARCH 2013  
LM75B  
LM75C Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface  
Check for Samples: LM75B, LM75C  
1
FEATURES  
DESCRIPTION  
The LM75B and LM75C are industy-standard digital  
temperature sensors with an integrated Sigma-Delta  
analog-to-digital converter and I2C interface. The  
LM75 provides 9-bit digital temperature readings with  
an accuracy of ±2°C from -25°C to 100°C and ±3°C  
over -55°C to 125°C.  
2
No External Components Required  
Shutdown Mode to Minimize Power  
Consumption  
Up to Eight LM75s Can be Connected to a  
Single Bus  
Power Up Defaults Permit Stand-alone  
Operation as Thermostat  
Communication is accomplished over  
a 2-wire  
interface which operates up to 400kHz. The LM75  
has three address pins, allowing up to eight LM75  
devices to operate on the same 2-wire bus. The  
LM75 has a dedicated over-temperature output (O.S.)  
with programmable limit and hystersis. This output  
has programmable fault tolerance, which allows the  
user to define the number of consecutive error  
conditions that must occur before O.S. is activated.  
The wide temperature and supply range and I2C  
interface make the LM75 ideal for a number of  
applications including base stations, electronic test  
equipment, office electronics, personal computers,  
and any other system where thermal management is  
critical to performance. The LM75B and LM75C are  
available in an SOIC package or VSSOP package.  
UL Recognized Component (LM75B and  
LM75C)  
APPLICATIONS  
General System Thermal Management  
Communications Infrastructure  
Electronic Test Equipment  
Environmental Monitoring  
KEY SPECIFICATIONS  
Supply Voltage  
LM75B, LM75C: 3.0V to 5.5V  
Supply Current  
Operating: 280 μA (typ)  
Shutdown: 4 μA (typ)  
Temperature Accuracy  
25°C to 100°C: ±2°C (max)  
55°C to 125°C: ±3°C (max)  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
All trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2009–2013, Texas Instruments Incorporated  

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