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Send til en ven   Udskriv17/5 2011 kl. 9:39
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Digital temperatursensor med ekstremt lavt effektforbrug

Texas Instruments er klar med ny familie af digitale temperatursensorer, der kan reducere effektforbruget med 97 procent og de fysiske dimensioner med mere end 75 procent (in english).

Texas Instruments (TI) has unveiled the industry’s smallest, most power-efficient digital temperature sensor. The TMP103 consumes 97 percent less power and is 75 percent smaller than the next closest competitor.

It also provides global read/write functionality to ease thermal profiling. Using a single command, eight TMP103 devices mounted on the board can simultaneously identify and monitor hotspots.

The TMP103 simplifies thermal profiling while enabling longer battery life and smaller form factors for portable consumer electronics such as smartphones, tablets, laptops and netbooks. 


The circuit draws a maximum of 1 uA while in shutdown mode and 3 uA while in active mode to extend battery life. In its active state, the TMP103 draws approximately half the power of the next closest competitor in shutdown state, claims TI.

It measures only 0.76 mm x 0.76 mm, making it suitable for high-density, space-constrained applications requiring multiple temperature measurement zones. 

The global read/write functionality reduces software development and processor loading. With a single command, the software can poll up to eight devices, reducing MIPS and bandwidth on the I2C bus.

An evaluation module is available now for the TMP103 for $49. An IBIS model to verify board signal integrity requirements is also available.
www.ti.com/tmp103-preu 
 

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