Toshiba Electronics Europe's TLP2355 and TLP2358 photocouplers
will support data rates up to 5Mbps while saving board space and
reducing power consumption in industrial designs.
Offering buffer logic and inverter logic
configurations respectively, the logic IC couplers are supplied in
compact S06 packages measuring just 7.0x3.7x2.1mm and they offer
guaranteed operation at temperatures from -40 to 125°C. The devices are
well suited for use in programmable logic controllers (PLCs),
measurement and control equipment requiring high-speed digital
interfaces, and IPM drives for factory automation
systems. The TLP2355 and TLP2358 can accommodate a wide supply voltage
range of 3V to 20V and support low-power operation thanks to a low
maximum threshold input current of only 1.6mA. Maximum power supply
current is just 3mA. A maximum propagation delay time of 250ns supports
high-speed data rates up to 5Mbps.
Each of the new devices consists of a
GaAlAs infrared LED optically coupled to a high-gain, high-speed
photodetector. The detector has a totem-pole output stage with current
sourcing and sinking capabilities. Despite their small size both devices
have a minimum isolation voltage rating of 3750Vrms, while an internal
Faraday shield ensures a guaranteed common mode transient immunity of
Visit Toshiba Electronics Europe at www.toshiba-components.com
This article originally appeared in EE Times Europe.