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 ±20kV/µs.
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