具有 PMBus 的 LM5056/LM5056A 高电压系统电源管理器件

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产品详细信息

参数

Common mode voltage (Max) (V) 80 Common mode voltage (Min) (V) 10 Input offset (+/-) (Max) (uV) 300 Gain (V/V) 1, 0.5 Gain error (%) 1.25 Bandwidth (kHz) 0.5 Supply voltage (Max) (V) 80 Supply voltage (Min) (V) 10 Iq (Max) (mA) 6.8 Digital interface I2C, PMBus, SMBus Features Digital Temp Monitor Resolution (Bits) 12 Rating Catalog Operating temperature range (C) -40 to 125 open-in-new 查找其它 电流/电压/功率监视器

封装|引脚|尺寸

HTSSOP (PWP) 28 43 mm² 9.7 x 4.4 open-in-new 查找其它 电流/电压/功率监视器

特性

  • Input Voltage Range: 10 V to 80 V
  • Real-Time Monitoring of VIN, IIN, PIN, VOUT, and VAUX with 12-bit resolution, 1-kHz sampling rate
  • True input Power Measurement using simultaneous sampling of Vin and Iin
  • Remote Temperature Sensing with programmable warning thresholds
  • Power Measurement Accuracy
    • LM5056A: ±1.75%
    • LM5056: ±2.25%
  • Current Measurement Accuracy
    • LM5056A: ±1.25%
    • LM5056: ±1.5%
  • Voltage Measurement Accuracy: ±1.0%
  • Averaging of VIN, IIN, PIN, and VOUT with Programmable Interval Ranging from 0.001 s to 4 s
  • Programmable WARN and FAULT Thresholds with SMBA Notification
  • Black-Box Capture of Telemetry Measurements and Device Status Triggered by WARN or FAULT Condition
  • I2C/SMBus Interface and PMBus Compliant Command Structure

PMBus is a trademark of Texas Instruments.

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描述

The LM5056/LM5056A combines high-performance analog and digital technology with a PMBus compliant SMBus™ and I2C interface to accurately measure the electrical operating conditions of systems connected to a backplane power bus. The LM5056/LM5056A continuously supplies real-time power, voltage, current, temperature and fault data to the system management host via the SMBus interface.

The LM5056/LM5056A monitoring block computes both the real time and average values of subsystem operating parameters (VIN, IIN, PIN, VOUT) as well as the peak power. Accurate power averaging is accomplished by averaging the product of the input voltage and current. A black-box (telemetry and fault snapshot) function captures and stores telemetry data and device status in the event of a warning or a fault.

open-in-new 查找其它 电流/电压/功率监视器
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技术文档

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类型 标题 下载最新的英文版本 发布
* 数据表 LM5056 High Voltage System Power Measurement Device with PMBus 数据表 2013年 4月 1日
技术文章 A key to accurate system thermal management: monitoring both current flow and temperature 2018年 10月 4日
技术文章 System trade-offs for high- and low-side current measurements 2017年 6月 1日
技术文章 Why should you care about overcurrent protection in your system? 2016年 6月 16日
技术文章 How to get started with current sense amplifiers – part 2 2015年 5月 26日
用户指南 AN-2270 LM5056 Evaluation Board 2012年 12月 5日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

硬件开发

评估板 下载
document-generic 用户指南
$149.00
说明
The Texas Instruments LM5056EVM evaluation module (EVM) provides the design engineer with a telemetry measurement IC board with a PMBus™ compliant SMBus/I2C interface. This application note describes the various functions of the board, how to test and evaluate it, and how to use the companion (...)
特性
  • Input Voltage Range: 10V to 60V
  • Input Current Range: 6.75A or 13.6A
  • 27 User Settable Addresses
  • Supplied GUI communications software and hardware

设计工具和仿真

仿真工具 下载
document-generic 用户指南 document-generic 下载英文版本 (Rev.A)

CAD/CAE 符号

封装 引脚 下载
HTSSOP (PWP) 28 了解详情

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