Datasheet > LM25056PSQ

LM25056PSQ

更新时间： 2024-10-01 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 PMBusâ¢

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LM25056PSQ 技术参数

生命周期：	Obsolete	零件包装代码：	QFN
包装说明：	HVQCCN,	针数：	24
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.68
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 mm	Base Number Matches：	1

LM25056PSQ 数据手册

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 V_IN, I_IN, P_IN, V_AUXwith 12-bit

resolution and 1 kHz sampling rate

The LM25056 monitoring block captures both real-time and

average values of subsystem operating parameters (V_IN, I_IN,

P_IN, V_AUX) 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 V_INand I_INaccurately averages dynamic

power readings

Averaging of V_IN, I_IN, P_IN, and V_AUXover 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

301529 SNVS784

www.ti.com

12 3 4 5 6 7...33

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与LM25056PSQ相关器件

型号	品牌	获取价格	描述	数据表
LM25056PSQE	TI	获取价格	System Power Measurement IC with PMBusâ¢
LM25056PSQX	TI	获取价格	System Power Measurement IC with PMBusâ¢
LM2506	NSC	获取价格	Low Power Mobile Pixel Link (MPL) Level 0, 18-bit RGB Display Interface Serializer and Des
LM25061	NSC	获取价格	Positive Low Voltage Power Limiting Hot Swap Controller
LM25061	TI	获取价格	具有功率限制、电源正常指示和过压保护功能的 2.9V 至 17V 热插拔控制器
LM25061PMM-1	NSC	获取价格	Positive Low Voltage Power Limiting Hot Swap Controller
LM25061PMM-1/NOPB	TI	获取价格	具有功率限制、电源正常指示和过压保护功能的 2.9V 至 17V 热插拔控制器 \| DGS
LM25061PMM-2	NSC	获取价格	Positive Low Voltage Power Limiting Hot Swap Controller
LM25061PMM-2/NOPB	TI	获取价格	具有功率限制、电源正常指示和过压保护功能的 2.9V 至 17V 热插拔控制器 \| DGS
LM25061PMME-1	NSC	获取价格	Positive Low Voltage Power Limiting Hot Swap Controller

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