High voltage photorelays fit in industry’s smallest package
The latest additions to the TLP34xx series offer low off-state capacitance, low on-state resistance and high voltage support.
The devices support trigger LED currents of 3 mA (max.) and isolation voltage of 300 Vrms(min.). By expanding the variation of voltage and ‘C × R’, the photorelays can support a variety of applications including semiconductor testers, measurement equipment, automatic test equipment as well as working as replacements to reed relays.
The products have the same electrical characteristics as Toshiba’s smallsize package USOP4 series, but reduce required assembly area by approximately 50% by using the VSON4 package that measures 1.5 mm by 2.5 mm x 1.3 mm thick. This can contribute to smaller and thinner products, and also makes it possible to increase the number of photorelays on a circuit board without increasing its size.
The lineup includes TLP3442, which realizes the industry’s lowest offstate capacitance (COFF), 0.3 pF (typ.), and TLP3431, which is suited for use in highfrequency signal transmission with a low onstate resistance (RON) of 0.8 ohm (typ.). The TLP34xx series covers both the low COFF and low RON range in an ultrasmall VSON4 package.
www.toshiba.semicon-storage.com
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