Opto-Electronics


Low-voltage IR receivers

30 March 2011 Opto-Electronics

To address the need for lower operating voltages in battery-operated consumer products, Vishay has broadened its optoelectronics portfolio with the introduction of a new ‘V’ low-voltage supply option for 10 of its TSOP IR series receivers.

The V series devices operate with a stable sensitivity rating at a very low supply voltage down to 2 V over a temperature range of +5°C to +85°C. In 2-cell alkaline battery applications, a typical discharge curve under a 160 mA load goes from 3 V down to 2,5 V after about three hours of operation. This would represent the end of life for a standard receiver operating down to 2,5 V. The typical non-linear battery discharge curve then provides a further 13 hours of operation before reaching 2 V. Thus a receiver capable of operating to 2 V 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 digital still cameras, bidirectional remote controls and 3D goggles. For additional power savings in battery powered systems, the receivers feature a standby function.

For more information contact Marian Ledgerwood, Future Electronics, +27 (0)21 421 8292, marian.ledgerwood@futureelectronics.com, www.futureelectronics.com



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