Kolton0
Joined: 12 Apr 2013
Posts: 9
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 Posted: Fri Apr 12, 2013 5:33 am Post subject: High speed photocouplers deliver 5Mb/s operation up to 125°C |
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Toshiba Electronics Europe has extended its family of high speed photocouplers to include two new devices.
Supplied in a DIP8 package and target at industrial applications, the TLP2955 and TLP2958 provide guaranteed operation from -40 to 125°C, have a minimum isolation voltage of 5000Vrms and support data rates up to 5Mb/s.
Target applications include intelligent power module signal isolation, programmable logic controllers and high speed digital interfaces for instrumentation and control devices.
The photocouplers can accommodate an input range of 3 to 20V, which Toshiba says minimises the need for additional voltage conversion circuitry and ensures compatibility with 3.3V power schemes.
Additional features include buffer logic and inverter logic totem pole output stages with current sourcing and sinking capabilities.
Each device is built around a long life GaAlAs led coupled with a high gain, high speed photo detector. An internal Faraday shield provides guaranteed common mode transient immunity of ±20kV/µs.
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