LTC2947
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LTC2947

30A Power/Energy Monitor with Integrated Sense Resistor

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Documentation View All Documentation
Linduino LTC2947 Linduino CPP File Download 19.00KB Linduino LTC2947 Linduino Header File Download 54.00KB Linduino LTC2947 - DC2574A_Kit.ino File Download 39.00KB Linduino LTC2947 - DC2334A.ino File Download 28.00KB
Part Models 2
1ku List Price Starting From $7.07
Features
  • Measures Current, Voltage, Power, Charge, Energy
  • ±30A Current Range with Low 9mA Offset
  • Integrated 300µΩ Sense Resistor
  • 0V to 15V Input Range Independent of Supply Voltage
  • Instantaneous Multiplication of Voltage and Current
  • 0.5% Voltage Accuracy
  • 1% Current and Charge Accuracy
  • 1.2% Power and Energy Accuracy
  • Alerts When Thresholds Exceeded
  • Stores Maximum and Minimum Values
  • Shutdown Mode with IQ < 10μA
  • I2C/SPI Compatible Interface
  • Available in 32-Lead 4mm × 6mm QFN Package
Additional Details
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The LTC2947 is a high-precision power and energy monitor with an internal sense resistor supporting up to ±30A. Three internal No Latency ΔΣ™ ADCs ensure accurate measurement of voltage and current, while high-bandwidth analog multiplication of voltage and current provides accurate power measurement in a wide range of applications. Internal or external clocking options enable precise charge and energy measurements.

An internal 300µΩ, temperature-compensated sense resistor minimizes efficiency loss and external components, simplifying energy measurement applications while enabling high accuracy current measurement over the full temperature range.

All measured quantities are stored in internal registers accessible via the selectable I2C/SPI interface. The LTC2947 features programmable high and low thresholds for all measured quantities to reduce digital traffic with the host.

Applications

  • Servers
  • Telecom Infrastructure
  • Industrial
  • Electric Vehicles
  • Photovoltaics
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file View Data Sheet (Rev.B)
Documentation View All Documentation
Linduino LTC2947 Linduino CPP File Download 19.00KB Linduino LTC2947 Linduino Header File Download 54.00KB Linduino LTC2947 - DC2574A_Kit.ino File Download 39.00KB Linduino LTC2947 - DC2334A.ino File Download 28.00KB
Part Models 2
1ku List Price Starting From $7.07
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LTC2947

Documentation

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Data Sheet

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UPDATED 02/14/2017
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LTC2947: 30A Power/Energy Monitor with Integrated Sense Resistor Data Sheet (Rev.B)

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UPDATED 11/22/2016
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LTC2947: 検出抵抗が内蔵された30A電力/エネルギー・モニタ データシート

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Reliability Data

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UPDATED 03/23/2018
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R567 Reliability Data redirect icon

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User Guide

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UPDATED 03/29/2016
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DC2026C Demo Manual redirect icon

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UPDATED 09/26/2016
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DC2574A-KIT - Demo Manual redirect icon

536.00K

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UPDATED 09/01/2016
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DC2334A - Demo Manual redirect icon

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Documentation

Documentation

Product Selector Card 3

Power System Manager and Super Sequencer Selection Guide
Energy Meter with Integrated Sense Resistor
Power and Thermal Monitoring

3rd Party Solutions 1

MIKROE-4222, Click Board, VCP Monitor 3 Click, Featuring LTC2947

Solutions Bulletin & Brochure 1

Bidirectional Current/Power/Energy Meter

Device Drivers 1

LTC2947 GitHub Linux Driver Source Code

Video

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Video

2017-09-18

LTC2947 Video Product Brief

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Video

2017-09-18

30A Power and Energy Monitor with Integrated Sense Resistor

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC2947IUFE#PBF 32-Lead QFN (4mm x 6mm x 0.75mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC2947IUFE#TRPBF 32-Lead QFN (4mm x 6mm x 0.75mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
Software & Part Ecosystem

Software & Part Ecosystem

Parts Product Life Cycle Description

Current Sense Amplifiers2
LTC2945
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Wide Range I2C Power, Charge and Energy Monitor

Evaluation Kit

Evaluation Kits 2

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DC2574A-KIT

LTC2947 Standalone Demo Kit | LTC2947 Demo Board (DC2334) + Linduino (DC2026) + LCD Keypad Shield

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DC2574A-KIT

LTC2947 Standalone Demo Kit | LTC2947 Demo Board (DC2334) + Linduino (DC2026) + LCD Keypad Shield

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DC2574A-KIT
LTC2947 Standalone Demo Kit | LTC2947 Demo Board (DC2334) + Linduino (DC2026) + LCD Keypad Shield
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Product Detail

The DC2574A-KIT is a standalone power/energy monitor that allows users to evaluate the LTC2947 power/energy monitor without a PC. This document describes how to quickly set up and operate the DC2574A-KIT; users should also refer to the DC2334 demo manual and LTC2947 data sheet for more details. The DC2574A-KIT includes all components required for stand-alone operation except for a power supply and load. The DC2574A-KIT operates with any USB compatible power supply and any load compatible with the LTC2947.

Resources

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DC2334A - Demo Manual Download

3.00M

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DC2574A-KIT - Design Files Download

5.00M

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DC2574A-KIT - Demo Manual Download

536.00K

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DC2574A-KIT - Schematic Download

124.00K

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DC2026C Demo Manual Download

982.00K

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DC2334A

LTC2947 Demo Board | 30A Energy Monitor with Integrated RSENSE (Requires DC590 or DC2026)

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DC2334A

LTC2947 Demo Board | 30A Energy Monitor with Integrated RSENSE (Requires DC590 or DC2026)

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DC2334A
LTC2947 Demo Board | 30A Energy Monitor with Integrated RSENSE (Requires DC590 or DC2026)
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Product Detail

Demonstration circuit 2334A features the LTC2947, a high precision power and energy meter with an internal 30A sense resistor. Three internal ΔΣ ADCs ensure accurate measurement of voltage (0V to 15V) and current (–30A to 30A), while high bandwidth analog multiplication of voltage and current provides accurate power measurement (–450W to 450W) in a wide range of applications. Internal or external clocking options enable precise charge and energy measurements.

Resources

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PDF

DC2334A - Demo Manual Download

3.00M

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PDF

DC2334A - Schematic Download

64.00K

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DC2334A - Design Files Download

1.00M

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Evaluation Kits2

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DC2574A-KIT

LTC2947 Standalone Demo Kit | LTC2947 Demo Board (DC2334) + Linduino (DC2026) + LCD Keypad Shield
evaluation kit item images

DC2334A

LTC2947 Demo Board | 30A Energy Monitor with Integrated RSENSE (Requires DC590 or DC2026)
Tools & Simulations

Tools & Simulations 1

Linduino

Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.

Linduino code repository on GitHub and instructions on how to use the code.

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Code Files

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LTC2947 Linduino CPP File redirect

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LTC2947 - DC2334A.ino File redirect

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