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EETE SEPT 2013

LED driver handles up to eight white LEDs for backlighting Advanced Power Electronics has released a new stepup converter capable of efficiently driving up to eight white LEDs in series for backlighting applications. The APE1612-3 uses current mode, 1.2MHz fixed frequency architecture to regulate the LED current, which is set using an external current sense resistor. The APE1612-3 features a low 300mV feedback voltage that reduces power loss and improves efficiency. The OV pin monitors the output voltage and turns off the converter if an over-voltage condition is present due to an open circuit condition. The APE1612- 3 includes under-voltage lockout, current limiting and thermal shutdown protection preventing damage from an output overload. The APE1612TY-HF-3 comes in a small RoHS/REACH-compliant TSOT-26 package. Advanced Power Electronics www.a-powerusa.com SPS_MESSE_ANZ_2013_E_210x148 07.06.13 18:16 Seite 1 Electric Automation Systems and Components International Exhibition and Conference Nuremberg, Germany, 26 – 28 November 2013 High-speed 940nm IR emitter supports gesture remote control Vishay Intertechnology has introduced a High-Speed 940nm infrared emitter for gesture remote control applications, delivering a radiant Answers for automation Experience at Europe's #1 platform for electric automation: • 1, 450 exhibitors • all key players of the industry • products and solutions • innovations a nd trends Your free entry ticket www.mesago.com/sps/tickets More information at +49 711 61946-828 or sps@mesago.com power of 40mW at 100mA. The VSLB9530S is offered in a clear moulded, leaded TELUX package with an oval lens designed to support an angle of half intensity of ± 18° in the vertical direction and ± 36° in the horizontal direction. The VSLB9530S is built on GaAIAs multi-quantum well technology. The device’s unique angular distribution makes it suitable for gesture remote control of televisions and gaming systems, where it provides excellent spectral matching with silicon photodetectors. The IR emitter’s wider angle in the horizontal view helps maintain position flexibility for users, while the narrower angle in the vertical plane focuses the distributed radiant intensity. The device measures 7.62x7.62x4.6mm and provides a low thermal resistance of 200 K/W. While standard IR emitters typically offer drive currents to 100 mA, the low thermal resistivity of the VSLB9530S allows continuous drive currents up to 150mA, which pushes the achievable radiant intensity to 60mW/sr at 150 mA. The device offers high modulation bandwidth of 24 MHz and is suitable for high pulse current operation. Vishay Intertechnology www.vishay.com


EETE SEPT 2013
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