Low-power, low-profile optocouplers carry 5 Mbps traffic

April 21, 2016 // By Graham Prophet
These compact devices reduce supply current by 90% over existing products, according to maker Toshiba. For high speed communications roles, TLP2310 and TLP2710 have a 54% reduced power consumption of 6.78 mW, compared to 14.8 mW of a conventional product, such as the TLP2355.

Both parts have been certified to UL1577 and EN60747-5-5 standards, suiting them for applications requiring high insulation performance, such as AC drives, servo amplifiers, I/O interface boards, photovoltaic devices and factory automation equipment.


The TLP2310 and TLP2710 integrate a reliable, high output power infrared LED with good lifetime characteristics that reduces the threshold input current by about 38% compared to a conventional product. By mounting a light-receiving IC that uses a Bi-CMOS process in the output side, each of the photocouplers has a low supply current of 0.3 mA max., which is about 90% lower compared with the conventional product. By sustaining the threshold input current at 1 mA (max), they support bufferless direct drive by a microcomputer, and help reduce power consumption and the cost of equipment systems.


Both photocouplers support an operating temperature of 125°C (max) and a power supply voltage range between 2.7V and 5.5V. Housed in packages with a max. height of 2.3 mm, the TLP2310 is available in a 5-pin SO6 package, with a clearance and creepage distance of 5 mm minimum and isolation voltage of 3.75 kVrms min. The TLP2710 is housed in a SO6L package, with a clearance and creepage distance of 8 mm minimum and an isolation voltage of 5 kVrms min.


Toshiba Electronics Europe; www.toshiba.semicon-storage.com