LM75A: 数字温度传感器与温度监控器
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。
LM75A: 产品结构框图
LM75A: 应用结构框图
Outline 3d SOT505-1
数据手册 (1)
| 名称/描述 | Modified Date |
|---|---|
| Digital temperature sensor and thermal watchdog (REV 4.0) PDF (137.0 kB) LM75A [English] | 10 Jul 2007 |
应用说明 (3)
| 名称/描述 | Modified Date |
|---|---|
| Level shifting techniques in I2C-bus design (REV 1.0) PDF (52.0 kB) AN10441 [English] | 20 Jun 2007 |
| I2C manual (REV 1.0) PDF (4.2 MB) AN10216 [English] | 27 Mar 2003 |
| I2C 2002-1A Evaluation Board (REV 2.0) PDF (2.2 MB) AN10146 [English] | 26 Feb 2003 |
用户指南 (3)
| 名称/描述 | Modified Date |
|---|---|
| I2C-bus specification and user manual (REV 6.0) PDF (1.4 MB) UM10204 [English] | 28 Apr 2014 |
| I2C-bus specification and user manual (REV 5.0) PDF (1.6 MB) UM10204_JA [English] | 03 Apr 2013 |
| I2C Demonstration Board 2005-1 Quick Start Guide (REV 1.0) PDF (261.0 kB) UM10206 [English] | 13 Jun 2006 |
手册 (3)
| 名称/描述 | Modified Date |
|---|---|
| NXP® I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns (REV 1.0) PDF (3.5 MB) 75017540 [English] | 01 Aug 2014 |
| Evaluate the I2C-bus with a comprehensive kit; NXP® I2C 2002-1A evaluation board kits OM6285 and OM6278 (REV 1.0) PDF (1.8 MB) 75016531 [English] | 01 Jul 2008 |
| Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for... (REV 1.0) PDF (1.1 MB) 75016543 [English] | 01 Jun 2008 |
选型工具指南 (1)
| 名称/描述 | Modified Date |
|---|---|
| I2C-bus temperature sensors; Small, accurate, low-cost sensors for advanced temperature regulation (REV 1.0) PDF (675.0 kB) 75015693 [English] | 01 Nov 2006 |
封装信息 (2)
| 名称/描述 | Modified Date |
|---|---|
| plastic thin shrink small outline package; 8 leads; body width 3 mm (REV 1.0) PDF (240.0 kB) SOT505-1 [English] | 08 Feb 2016 |
| plastic small outline package; 8 leads; body width 3.9 mm (REV 1.0) PDF (244.0 kB) SOT96-1 [English] | 08 Feb 2016 |
包装 (2)
| 名称/描述 | Modified Date |
|---|---|
| SO8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... (REV 2.0) PDF (232.0 kB) SOT96-1_118 [English] | 19 Apr 2013 |
| TSSOP8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (214.0 kB) SOT505-1_118 [English] | 15 Apr 2013 |
报告或演示文稿 (1)
| 名称/描述 | Modified Date |
|---|---|
| design_con_2003_tecforum_i2c_b_1 (REV 0.1) PDF (4.2 MB) DESIGN_CON_2003_TECFORUM_I2C_B_1 [English] | 27 Jan 2003 |
支持信息 (4)
| 名称/描述 | Modified Date |
|---|---|
| Reflow Soldering Profile (REV 1.0) PDF (34.0 kB) REFLOW_SOLDERING_PROFILE [English] | 30 Sep 2013 |
| Wave Soldering Profile (REV 1.0) PDF (20.0 kB) WAVE_SOLDERING_PROFILE [English] | 30 Sep 2013 |
| Footprint for reflow soldering (REV 1.0) PDF (9.0 kB) SO-SOJ-REFLOW [English] | 08 Oct 2009 |
| Footprint for wave soldering (REV 1.0) PDF (8.0 kB) SO-SOJ-WAVE [English] | 08 Oct 2009 |
IBIS
- LM75A IBIS model (REV 1.0) ibs LM75A_1 9/16/2014
- LM75ADP IBIS model (REV 1.0) ibs LM75ADP 9/19/2012
订购信息
| 型号 | 状态 | Package version | Remarks | Standby current (uA) | Operating Temperature (Cel) | I2C-bus controlled | Part type | Accuracy on-chip (±°C) | Operating voltage (VDC) | Assignable addresses | SMBus clock (kHz) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| LM75AD | Active | SOT96-1 | Extended temperature range, temperature to digital converter, programmable threshold | 3 | -55~125 | 2.8~5.5 | Supervisor, Temperature | 2@-25~100?3@-55~125 | 2.8~5.5 | 8 | 400 |
| LM75ADP | Active | SOT505-1 | Extended temperature range, temperature to digital converter, programmable threshold | 3 | -55~125 | 2.8~5.5 | Supervisor, Temperature | 2@-25~100?3@-55~125 | 2.8~5.5 | 8 | 400 |
封装环保信息
| 产品编号 | 封装说明 | Outline Version | 回流/波峰焊接 | 包装 | 产品状态 | 部件编号订购码 (12NC) | Marking | 化学成分 | RoHS / 无铅 / RHF | 无铅转换日期 | EFR | IFR(FIT) | MTBF（小时） | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LM75AD |  | SOT96-1 | SO-SOJ-REFLOW
SO-SOJ-WAVE SO-SOJ-REFLOW SO-SOJ-WAVE | Reel 13" Q1/T1 | Active | LM75AD,118 (9352 697 75118) | LM75A | LM75AD |    | week 17, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 |
| Bulk Pack | Active | LM75AD,112 (9352 697 75112) | LM75A | LM75AD | | week 17, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 | ||||
| LM75ADP | | SOT505-1 | Reflow_Soldering_Profile | Reel 13" Q1/T1 | Active | LM75ADP,118 (9352 697 76118) | L75A | LM75ADP | | week 13, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 |
| LM75ADP/DG | | SOT505-1 | Reflow_Soldering_Profile | Reel 13" Q1/T1 | Discontinued | LM75ADP/DG,118 (9352 886 14118) | L75A | LM75ADP/DG | | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 |
- 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
- LM75ADP 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
- plastic thin shrink small outline package; 8 leads; body width 3 mm pesd5v0l7bas
- Reflow_Soldering_Profile Wave_Soldering_Profile LPC1112FD20
- TSSOP8; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... pesd5v0l7bas
- LM75A
- LM75A
- SA612A
- PCT2075
