型号LM5056A
品牌
分类数字功率监控器
描述3 至 80V、12 位 PMBus 输出电流/电压/功率/温度监控器
相关操作
产品概述

参数

Common-mode voltage (max) (V) 80
Common-mode voltage (min) (V) 10
Input offset (±) (max) (V) 0.0003
Voltage gain (V/V) 0.5, 1
Bandwidth (MHz) 0.0005
Supply voltage (max) (V) 80
Supply voltage (min) (V) 10
Iq (max) (mA) 6.8
Digital interface I2C, PMBus, SMBus
Gain error (%) 1.25
Features Digital Temp Monitor
Resolution (Bits) 12
Power measurement accuracy (%) 1.75
Rating Catalog
Operating temperature range (°C) -40 to 125

封装 | 引脚 | 尺寸

HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4

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.

说明

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.