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LM25056PSQX PDF预览

LM25056PSQX

更新时间: 2024-11-14 12:21:39
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
33页 623K
描述
System Power Measurement IC with PMBus™

LM25056PSQX 技术参数

生命周期:Obsolete零件包装代码:QFN
包装说明:LLP-24针数:24
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.2
可调阈值:NO模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUIT
JESD-30 代码:R-XQCC-N24长度:5 mm
信道数量:1功能数量:1
端子数量:24最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:UNSPECIFIED
封装代码:HVQCCN封装形状:RECTANGULAR
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE座面最大高度:0.8 mm
最大供电电压 (Vsup):17 V最小供电电压 (Vsup):3 V
标称供电电压 (Vsup):12 V表面贴装:YES
温度等级:INDUSTRIAL端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
宽度:4 mmBase Number Matches:1

LM25056PSQX 数据手册

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January 16, 2012  
LM25056  
System Power Measurement IC with PMBus™  
General Description  
Features  
The LM25056 combines high performance analog and digital  
technology with a PMBus™ compliant SMBus™/I2C interface  
to accurately measure the operating conditions of electrical  
systems including computing and storage blades connected  
to a backplane power bus. The LM25056 continuously sup-  
plies real-time power, voltage, current, and temperature data  
to the system management host via the SMBus interface.  
Input voltage range: 3V to 17V  
I2C/SMBus™ interface with PMBus compliant command  
structure  
Remote temperature sensing with programmable warning  
and shutdown thresholds  
Real time monitoring of VIN, IIN, PIN, VAUX with 12-bit  
resolution and 1 kHz sampling rate  
The LM25056 monitoring block captures both real-time and  
average values of subsystem operating parameters (VIN, IIN,  
PIN, VAUX) as well as peak power. Accurate power measure-  
ment is accomplished by measuring the product of the input  
voltage and current through a shunt resistor. LM25056 cur-  
rent measurement has a ±1.5% accuracy over the tempera-  
ture range of -40°C to +85°C with operation from -40°C to  
+125°C. A black box (Telemetry/Fault Snapshot) function  
captures and stores telemetry data and device status in the  
event of a warning or a fault.  
Current measurement error: ±1.5%: -40°C to +85°C  
Voltage measurement error: ±1.5%: -40°C to +85°C  
Power measurement error: ±3%: -40°C to +85°C  
True input power measurement using simultaneous  
sampling of VIN and IIN accurately averages dynamic  
power readings  
Averaging of VIN, IIN, PIN, and VAUX over programmable  
interval ranging from 0.001 to 4 seconds  
User programmable WARN and FAULT thresholds with  
SMBA notification  
Black box capture of telemetry measurements and device  
status triggered by WARN and FAULT conditions  
PMBus is a trademark of SMIF, Inc. SMBus is a trademark of Intel Corp.  
Full featured application development software  
LLP-24 package  
Applications  
Server backplane systems  
Base station power distribution systems  
Subsystem power measurement  
Typical Application Schematic  
30152901  
© 2012 Texas Instruments Incorporated  
301529 SNVS784  
www.ti.com  

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