-48V Telecom Current/Voltage/Power Sense with Isolation

(ACTIVE) TIDA-00313

Description & Features

Technical Documents

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Description

This verified design can accurately measure current, voltage and power on a bus that carries -48V and is able to provide this data using an I²C compatible interface. This design is targeted for Telecom applications because the most common Telecom equipment’s are fed with this negative supply voltage. It uses INA226 and ISO1541. The INA226 is a current shunt and power monitor with an I²C compatible interface. This device will precisely take these measurements and will use ISO1541 to translate the negative voltage to ground referenced signals. The ISO1541 is a low-power, bidirectional I²C compatible isolator.

Features
  • Ability to report current, voltage and power on a bus that carries -48V
  • High Accuracy:

- 10µV Offset (Max)

- 0.1% Gain Error (Max)        

  • I²C compatible interface
  • Isolation friendly for board to board communication
  • I²C compatible isolation translates -48V reference to ground referenced signals

 


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




TI Devices (2)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
INA226  36-V, Bi-Directional, Ultra-High Accuracy, Low-/High-Side, I2C Out Current/Power Monitor w/ Alert  Current Sense Amplifiers  Sample & Buy View Design Kits & Evaluation Modules
ISO1541  2.5 kVrms Isolated Unidirectional Clock, Bidirectional I2C Isolators  Isolation  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 975 28 Sep 2017 569
Design files (4)
Title Abstract Type Size (KB) Date Views
ZIP 833 23 Sep 2014 64
ZIP 1053 23 Sep 2014 60
PDF 253 23 Sep 2014 45
PDF 120 23 Sep 2014 278
Related Tools & Software

Software (1)




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