Photocoupler optimised for 100 kbps RS-232C

Photocoupler optimised for 100 kbps RS-232C

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By eeNews Europe

The IC features a high current transfer ratio (IC/IF) of 900% (min) at an input current of 0.5 mA. As the guaranteed propagation delay is 25 µsec (max) at an input current of IF=1.6 mA, and 7 µsec (max) at IF=12 mA, this product is suitable for insulated communication interfaces such as RS-232C.

RS-232C operates in the rate range between several kbps to 100 kbps. For this application general purpose transistor couplers are not satisfactory in terms of performance while 1 Mbps class IC couplers are often too expensive. The TLP2703 offers a solution, configured with a high output power infrared LED chip and a high speed photodarlington transistor.

The TLP2703 is housed in SO6L package with a max. height of 2.3 mm. With a creepage distance of 8 mm and an isolation voltage of 5 kVrms the TLP2703 is suitable for use in applications requiring high insulation performance. Its guaranteed operating temperature range is up to +125°C.

Toshiba Electronics Europe;

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