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LM96080CIMT

更新时间: 2024-11-06 12:09:51
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德州仪器 - TI 光电二极管监控
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34页 995K
描述
LM96080 System Hardware Monitor with 2-Wire Serial Interface

LM96080CIMT 数据手册

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LM96080  
www.ti.com  
SNAS465D SEPTEMBER 2009REVISED MARCH 2013  
LM96080 System Hardware Monitor with 2-Wire Serial Interface  
Check for Samples: LM96080  
1
FEATURES  
DESCRIPTION  
LM96080, compatible to LM80, is a hardware monitor  
that contains a 10-bit delta-sigma ADC capable of  
measuring 7 positive voltages and local temperature.  
The LM96080 also measures the speed of two fans  
and includes other hardware monitoring on an I2C®  
interface. The LM96080 includes a sequencer that  
performs WATCHDOG window comparisons of all  
measured values and its interrupt outputs become  
active when any values exceed the programmed  
limits.  
2
Local Temperature Sensing  
7 Positive Voltage Inputs with 10-bit  
Resolution  
2 Programmable Fan Speed Monitoring Inputs  
2.5 mV LSb and 2.56V Input Range  
Chassis Intrusion Detector Input  
WATCHDOG Comparison of All Monitored  
Values  
Separate Input to Show Status in Interrupt  
Status Register of Additional External  
Temperature Sensors Such as the LM26/27,  
LM56/57, LM73, or LM75  
I2C Serial Bus Interface Compatibility,  
Supports Standard Mode, 100 kbits/s, and Fast  
Mode, 400 kbits/s  
The LM96080 is especially suited to interface to both  
linear and digital temperature sensors. The 2.5 mV  
LSb (least significant bit) and 2.56 volt input range is  
ideal for accepting inputs from a linear sensor such  
as the LM94022. The BTI is used as an input from  
either digital or thermostat sensors such as LM73,  
LM75, LM56, LM57, LM26, LM27, LM26LV, or other  
LM96080.  
Shutdown Mode to Minimize Power  
Consumption  
The LM96080 supports Standard Mode (Sm, 100  
kbits/s) and Fast Mode (Fm, 400 kbits/s) I2C interface  
modes of operation. LM96080 includes an analog  
filter on the I2C digital control lines that allows  
improved noise immunity and supports TIMEOUT  
reset function on SDA and SCL that prevents I2C bus  
lockup. Three I2C device address pins allow up to 8  
parts on a single bus.  
Programmable RST_OUT/OS Pin: RST_OUT  
Provides a Reset Output; OS Provides an  
Interrupt Output Activated by an  
Overtemperature Shutdown Event  
Software and Pin Compatible with the LM80  
APPLICATIONS  
The LM96080's 3.0V to 5.5V supply voltage range,  
low supply current, and I2C interface make it ideal for  
a wide range of applications. Operation is ensured  
Communications Infrastructure  
System Thermal and Hardware Monitoring for  
Servers  
over the temperature range of (40)°C TA  
+125°C. The LM96080 is available in a 24-pin  
TSSOP package.  
Electronic Test Equipment and  
Instrumentation  
Office Electronics  
KEY SPECIFICATIONS  
Total Unadjusted Error ±1 %FS (Max)  
Differential Non-Linearity ±1 Lsb (Max)  
Supply Voltage Range +3.0 V to +5.5 V  
Supply Current (Operating) 0.370 mA Typ  
Supply Current (Shutdown) 0.330 mA Typ  
ADC Resolution 10 Bits  
Temperature Resolution 0.5°C/0.0625°C  
Temperature Accuracy ±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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