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LM87CIMTX/NOPB PDF预览

LM87CIMTX/NOPB

更新时间： 2024-11-03 11:10:19
品牌 Logo 应用领域
德州仪器 - TI 温度传感监控光电二极管风扇传感器温度传感器
页数 文件大小 规格书
46页 1713K
描述
具有 2 条远程和 1 条本地通道的温度传感器、风扇控制、硬件和 8 个电源电压监控器 | PW | 24 | -40 to 125

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LM87CIMTX/NOPB 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：TSSOP
包装说明：TSSOP,针数：24
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：1可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码：R-PDSO-G24
JESD-609代码：e3长度：7.8 mm
湿度敏感等级：1信道数量：14
功能数量：1端子数量：24
最高工作温度：125 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：TSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.2 mm最大供电电流 (Isup)：1.2 mA
最大供电电压 (Vsup)：3.8 V最小供电电压 (Vsup)：2.8 V
标称供电电压 (Vsup)：3.3 V表面贴装：YES
温度等级：AUTOMOTIVE端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：4.4 mm

LM87CIMTX/NOPB 数据手册

 浏览型号LM87CIMTX/NOPB的Datasheet PDF文件第2页浏览型号LM87CIMTX/NOPB的Datasheet PDF文件第3页浏览型号LM87CIMTX/NOPB的Datasheet PDF文件第4页浏览型号LM87CIMTX/NOPB的Datasheet PDF文件第5页浏览型号LM87CIMTX/NOPB的Datasheet PDF文件第6页浏览型号LM87CIMTX/NOPB的Datasheet PDF文件第7页 
LM87  
www.ti.com  
SNAS034J –APRIL 2000–REVISED MARCH 2013  
LM87 Serial Interface System Hardware Monitor with Remote Diode Temperature Sensing  
Check for Samples: LM87  
1
FEATURES  
DESCRIPTION  
The LM87 is a highly integrated data acquisition  
system for hardware monitoring of servers, Personal  
Computers, or virtually any microprocessor-based  
system. In a PC, the LM87 can be used to monitor  
power supply voltages, motherboard and processor  
temperatures, and fan speeds. Actual values for  
these inputs can be read at any time. Programmable  
WATCHDOG limits in the LM87 activate a fully  
programmable and maskable interrupt system with  
two outputs (INT# and THERM#).  
234  
•
Remote diode temperature sensing (2  
channels)  
•
•
8 positive voltage inputs with scaling resistors  
for monitoring +5 V, +12 V, +3.3 V, +2.5 V,  
Vccp power supplies directly  
2 inputs selectable for fan speed or voltage  
monitoring  
•
•
•
8-bit DAC output for controlling fan speed  
Chassis Intrusion Detector input  
The LM87 has an on-chip digital output temperature  
sensor with 8-bit resolution as well as the capability of  
monitoring 2 external diode temperatures to 8-bit  
resolution, an 8 channel analog input ADC with 8-bit  
resolution and an 8-bit DAC. A channel on the ADC  
measures the supply voltage applied to the LM87,  
nominally 3.3 V. Two of the ADC inputs can be  
redirected to a counter that can measure the speed of  
up to 2 fans. A slow speed ΣΔ ADC architecture  
allows stable measurement of signals in an extremely  
noisy environment. The DAC, with a 0 to 2.5 V output  
voltage range, can be used for fan speed control.  
Additional inputs are provided for Chassis Intrusion  
detection circuits, and VID monitor inputs. The VID  
monitor inputs can also be used as IRQ inputs if VID  
monitoring is not required. The LM87 has a Serial  
Bus interface that is compatible with SMBus™ and  
I2C™.  
WATCHDOG comparison of all monitored  
values  
SMBus™ or I2C Serial Bus interface  
compatibility  
•
•
•
VID0-VID4 or IRQ0-IRQ4 monitoring inputs  
On chip temperature sensor  
APPLICATIONS  
•
System Thermal and Hardware Monitoring for  
Servers, Workstations and PCs  
•
•
•
Networking and Telecom Equipment  
Office Electronics  
Electronic Test Equipment and  
Instrumentation  
KEY SPECIFICATIONS  
Connection Diagram  
•
•
•
Voltage Monitoring Error ±2 % (max)  
External Temperature Error ±4 °C (max)  
Internal Temperature Error  
–
−40 °C to +125 °C ± 3 °C (typ)  
•
•
•
•
Supply Voltage Range 2.8 to 3.8 V  
Supply Current 0.7 mA (typ)  
ADC and DAC Resolution 8 Bits  
Temperature Resolution 1.0 °C  
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
3
4
SMBus is a trademark of Intel Corporation.  
I2C is a trademark of dcl_owner.  
All other 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 © 2000–2013, Texas Instruments Incorporated  
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中文翻译

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LM87CIMTX/NOPB 替代型号

型号 品牌 替代类型 描述 数据表
LM87CIMT TI

完全替代

 具有 2 条远程和 1 条本地通道的温度传感器、风扇控制、硬件和 8 个电源电压监控器 |
LM87CIMT/NOPB TI

完全替代

 具有 2 条远程和 1 条本地通道的温度传感器、风扇控制、硬件和 8 个电源电压监控器 |

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