数据手册DataSheet 下载LM75AD 数字温度传感器与温度监控器.pdf

LM75A是一款温度-数字转换器,采用片内带隙温度传感器和Σ-Δ型A-D转换技术制造。该器件还是一个热检测器,具有过温检测输出。LM75A集成一系列数据寄存器:配置寄存器(Conf),用于存储器件设置,如器件工作模式、OS工作模式、OS极性和OS故障队列,相关说明可参见第7节:“功能说明”;温度寄存器(Temp),用于存储数字温度读数;以及设定点寄存器(Tos和Thyst),用于存储可编程过温关断和迟滞限值,可通过双线式串行I²C总线接口与控制器通信。该器件还提供开漏输出(OS),可在温度超过编程限值时激活。具有三个可选逻辑地址针脚,因此一条总线上可以连接8个器件,不会产生地址冲突。

LM75A可针对不同工作条件进行配置。可将其设为正常工作模式以便周期性监控环境温度,或者设为关断模式以便最大程度降低功耗。OS输出可在两种可选模式中的任意一种下工作:OS比较器模式或OS中断模式。它的激活状态可选为高电平或低电平。可对定义连续故障数量以激活OS输出的故障队列进行编程,也可对设定点限值进行编程。

温度寄存器始终存储11位二进制补码数据,温度分辨率为0.125 ℃。对于精确测量热漂移或热逃逸的应用,这一较高的温度分辨率尤其有用。

上电后,该器件进入正常工作模式,OS进入比较器模式,温度阈值为80 ℃,迟滞为75 ℃,因此可用作带有预定义温度设定点的独立恒温器。

产品特点
  • 与工业标准的LM75针脚兼容,温度分辨率提升为0.125 °C,单器件工作电源电压范围为2.8 V至5.5 V
  • 小型8针脚封装类型:SO8和TSSOP8
  • 一条I²C总线最多能与8个器件对接
  • 电源电压范围:2.8 V至5.5 V
  • 温度范围:-55 ℃至+125 ℃
  • 11位ADC,温度分辨率为0.125 ℃
  • 温度准确度:
    • -25 ℃至+100 ℃:+-2 ℃
    • -55 ℃至+125 ℃:+-3 ℃
  • 可编程温度阈值和迟滞设定点
  • 关断模式下电源电流为3.5 uA,可节省电能
  • 上电时可单独作为恒温器使用
  • ESD保护优于JESD22-A114标准的2000 V HBM、JESD22-A115标准的200 V MM和JESD22-C101标准的1000 V CDM
  • 完成JEDEC标准JESD78闩锁测试,超过100 mA
产品应用
  • 系统温度管理
  • 个人电脑
  • 电子设备
  • 工业控制器
功能框图
演示板
订购型号
订购型号封装Outline versionReflow-/Wave soldering包装产品状态标示订购器件的编号
LM75ADSO8 (SOT96-1)sot096-1_poSO-SOJ-REFLOW
Wave_Soldering_Profile
Tape reel smd激活LM75ALM75AD,118( 9352 697 75118 )
LM75AD/DGSO8 (SOT96-1)sot096-1_poSO-SOJ-REFLOW
Wave_Soldering_Profile
Tape reel smd停产替代产品LM75ALM75AD/DG,118( 9352 886 96118 )
品质、可靠性及RoHS化学成分
订购型号订购器件的编号RoHS / RHF无铅开始日期EFRIFR (FIT)MTBF(小时)潮湿敏感度等级MSL LF
LM75ADLM75AD,118week 17, 20050.02.05E811
LM75ADLM75AD,112week 17, 20050.02.05E811
LM75AD/DGLM75AD/DG,118Always Pb-free0.02.05E811
产品技术资料
文档标题类型分类格式更新日期
LM75A (中文):Digital temperature sensor and thermal watchdogData sheetpdf2007-07-10
AN10441:Level shifting techniques in I2C-bus designApplication notepdf2007-06-20
AN10216:I2C manualApplication notepdf2003-03-27
AN10146:I2C 2002-1A Evaluation BoardApplication notepdf2003-02-26
75016543:Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for major home appliancesBrochurepdf2008-06-01
75016531:Evaluate the I2C-bus with a comprehensive kit; NXP I2C 2002-1A evaluation board kits OM6285 and OM6278Leafletpdf2008-07-01
75017424:NXP I2C-bus solutions 2013: Smart, simple solutions for the 12 most common design concernsLeafletpdf2013-05-23
design_con_2003_tecforum_i2c_bus_overview:DesignCon 2003 TecForum I 2 C Bus OverviewOther typepdf2003-01-27
75015693:I2C-bus temperature sensors; Small, accurate, low-cost sensors for advanced temperature regulationSelection guidepdf2006-11-01
UM10204:I2C-bus specification and user manualUser manualpdf2014-04-28
UM10206:I2C Demonstration Board 2005-1 Quick Start GuideUser manualpdf2006-06-12
UM10204_JA:I2C-bus specification and user manualUser manualpdf2013-04-03
SOT96-1_118:SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering code (12NC) ending 118Packingpdf2013-04-19
SOT96-1_115:Tape reel SMD; standard product orientation 12NC ending 115Packingpdf2012-11-23
Wave_Soldering_Profile:Wave Soldering ProfileWave solderingpdf2013-09-30
SOT96-1_518:SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending, 518 or Y Ordering code (12NC) ending 518Packingpdf2014-06-02
SO-SOJ-REFLOW:Footprint for reflow solderingReflow solderingpdf2009-10-08
SO-SOJ-WAVE:Footprint for wave solderingWave solderingpdf2009-10-08
sot096-1_po:plastic small outline package; 8 leads; body width 3.9 mmOutline drawingpdf2009-10-08
Digital temperature sensor and thermal watchdog lm75a
Level shifting techniques in I2C-bus design pca9685pw
I2C manual se98apw
I2C 2002-1A Evaluation Board lm75a
I2C-bus specification and user manual pca9685pw
I2C-bus specification and user manual pca9685pw
I2C Demonstration Board 2005-1 Quick Start Guide pca9685pw
NXP® I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns pca9685pw
Evaluate the I2C-bus with a comprehensive kit; NXP® I2C 2002-1A evaluation board kits OM6285 and OM6278 lm75a
Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for... PMEG6010CE_AUTOMOTIVE
I2C-bus temperature sensors; Small, accurate, low-cost sensors for advanced temperature regulation se95u
design_con_2003_tecforum_i2c_b_1 lm75a
Reflow_Soldering_Profile Wave_Soldering_Profile LPC1112FD20
LM75A IBIS model LM75ADP
plastic small outline package; 8 leads; body width 3.9 mm CBT3306_Q100
Footprint for reflow soldering NPIC6C596A_Q100
Footprint for wave soldering NPIC6C596A_Q100
SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... CBT3306_Q100
LM75A
SA612A