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TI strengthens current shunt monitor portfolio with four industry-leading devices

Devices reduce board space and system cost, deliver high accuracy for wide range of products


News provided by

Texas Instruments Incorporated

Aug 28, 2012, 08:00 ET

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DALLAS, Aug. 28, 2012 /PRNewswire/ -- Texas Instruments Incorporated (TI) (NASDAQ:TXN) today expanded its industry-leading portfolio of current shunt monitors with four new devices. The integrated circuits (ICs) monitor power supply current, voltage and power values with best-in-class features that reduce board space and bill of materials (BOM), while delivering high accuracy. The INA3221, INA282, INA223, and LMP8480 current shunt monitors are optimized for a wide range of end-equipment, from smartphones, tablets, computers and servers, to power management devices, battery chargers, and industrial, telecommunications and test equipment. For more information and to order samples, visit: www.ti.com/currentshunt-pr.   

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Key features and benefits:

INA3221: Triple-channel shunt and bus voltage monitor with I2C interface

  • Industry's first triple-channel device with digital interface enables monitoring of three separate voltages, eliminating the need for discrete devices for each voltage rail.
  • 80-uV maximum offset voltage and 0.5-percent gain error enable highly accurate current measurement and precision over-current detection for end equipment such as notebook and desktop PCs, base stations and servers.

INA282: Wide common-mode range, bidirectional, high-accuracy current shunt monitor

  • 70-uV maximum offset voltage and low gain error enable the use of smaller shunt resistors to reduce power consumption, board space and BOM.
  • First device to combine wide common-mode range (-14 V to +80 V) and high common-mode rejection ratio (120 dB) with low offset voltage across multiple gain options. This feature combination increases accuracy in high-voltage applications, such as industrial system power units and telecom power systems.

INA223: Analog output current shunt, voltage and instantaneous power monitor

  • Industry's first analog multiple output current shunt device offers multiplexed current, voltage and instantaneous power values to reduce board space and BOM.
  • Programmable gain of 20, 128 and 300 allows operation over a wide dynamic current load without switching the sensing element, improving response time and accuracy in high precision products, such as such as battery-powered notebooks, mobile phones and tablets.

LMP8480: Precision high-side current sense amplifier with voltage output

  • High common-mode voltage range of 4 V to 76 V and a high supply range of 4.5 V to 76 V reduce system cost by allowing the device to be powered from the same voltage node it is monitoring.
  • Input offset voltage of 265 uV, 50-percent lower than the competition, increases sensing accuracy in high-precision applications, such as telecom, automotive and solar power monitoring.

Designers can develop a system management solution by combining an INA3221, INA222, INA223 or LMP8480 current shunt monitor with TI's OMAP TM processors, Stellaris® ARM® Cortex™-M microcontrollers, LM75A or TMP75 temperature sensor, as well as a wide range of analog monitoring and control integrated analog-to-digital converter (ADC) and digital-to-analog converter (DAC) solutions, such as the AMC7812 or LMP92001.

Tools and support

Evaluation modules (EVMs) as well as IBIS and SPICE models are available today to quickly evaluate these devices:

INA3221

  • Evaluation module, with suggested retail price of $75 each: www.ti.com/ina3221evm-pr.
  • IBIS model: www.ti.com/ina3221ibis-pr.

INA282

  • Evaluation module, with suggested retail price of $49 each: www.ti.com/ina282evm-pr.
  • SPICE model: www.ti.com/ina282spice-pr. 

INA223

  • Evaluation module, with suggested retail price of $75 each: www.ti.com/ina223evm-pr.
  • SPICE model: www.ti.com/ina223spice-pr.

LMP8480

  • Evaluation module, with suggested retail price of $49 each: www.ti.com/lmp8480evm-pr.
  • SPICE model: www.ti.com/lmp8480spice-pr.

Engineers designing with these current shunt monitors can ask questions and get answers from TI experts in the TI E2E™ Community: www.ti.com/e2epa-pr.

Package, availability and pricing

The new current shunt monitors are available to sample and purchase today. Packaging and suggested retail pricing in 1,000-unit quantities are as follows:

  • INA3221, 4-mm x 4-mm, 16-pin QFN: US$1.85
  • INA282, 4.9-mm x 6-mm, 8-pin SOIC: US$1.25
  • INA223, 2.5-mm x 2.5-mm, 10-pin SON: US$1.15
  • LMP8040, 4.9-mm x 3.0-mm, 8-pin MSOP: US$1.10

Learn more about TI's current shunt monitor portfolio by visiting the links below:

  • Order INA3221 samples, IBIS models and EVMs: www.ti.com/ina3221samples-pr.  
  • Order INA282 samples, SPICE models and EVMs: www.ti.com/ina282samples-pr.    
  • Order INA223 samples, SPICE models and EVMs: www.ti.com/ina223samples-pr.  
  • Order LMP8480 samples, SPICE models and EVMs: www.ti.com/lmp8480samples-pr.  
  • Explore TI's entire current shunt monitor portfolio: www.ti.com/currentshuntport-pr.

About Texas Instruments

Texas Instruments semiconductor innovations help 90,000 customers unlock the possibilities of the world as it could be – smarter, safer, greener, healthier and more fun. Our commitment to building a better future is ingrained in everything we do – from the responsible manufacturing of our semiconductors, to caring for our employees, to giving back inside our communities. This is just the beginning of our story. Learn more at www.ti.com.

Trademarks

Stellaris is a registered trademark, and TI E2E and OMAP are trademarks of Texas Instruments. All other trademarks and registered trademarks belong to their respective owners.

SOURCE Texas Instruments Incorporated

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