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Power device lowers remote control operating voltage

Posted: 25 Feb 2011 ?? ?Print Version ?Bookmark and Share

Keywords:IR receivers? optoelectronics? power supply?

Vishay Intertechnology Inc. has introduced the V series of low-voltage supply options to address the need for lower operating voltages in battery-operated consumer products. Targeted at the company's TSOP IR series receivers, the devices operate with a stable sensitivity rating at a 2V supply voltage over a temperature range of +5C to + 85C.

The typical discharge curve in 2-cell alkaline battery applications under a 160mA load goes from 3V down to 2.5V after about three hours of operation. This would represent the end of life for a standard receiver operating down to 2.5V. The typical nonlinear battery discharge curve then provides a further 13hrs of operation before reaching 2V. Thus a receiver capable of operating to 2V can extend the useful battery life by a factor of more than four.

Typical end products for Vishay's V series include small handheld battery-powered systems such as DSCs, bi-directional remote controls and 3D goggles. For additional power savings in battery-powered systems, the receivers feature a standby function.

The V option is available for 10 of Vishay's TSOP series IR receivers in six package types.

Samples and production quantities of the V series IR receivers are available now, with lead times of four to six weeks for large orders.





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