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Photocouplers from Toshiba operate from 4.5V to 30V

Posted: 04 Feb 2016     Print Version  Bookmark and Share

Keywords:Toshiba  photocoupler  intelligent power module  microcomputer 

Toshiba America Electronic Components Inc. has recently unveiled a couple of IC photocouplers. The TLP2745 and TLP2748 target applications such as intelligent power module (IPM) drives, communication interfaces (such as RS232, RS422 and RS485), industrial applications and in data transmission between circuits with different voltages.

The TLP2745 and TLP2748 feature a 120ns (max) propagation delay time for higher operational efficiency and 40ns (max) pulse width distortion and 70ns (max) propagation delay skew. This results in reduced inverter dead time and improved power efficiency. In addition, by having a low threshold input current of 1.6mA (max), the photocouplers make a bufferless direct drive from microcomputers possible, reducing power consumption and possibly reducing costs of equipment systems housing photocouplers.

TLP2745 and TLP2748

The TLP2745 is a buffer logic type (high input → high output), and the TLP2748 is an inverter logic type (high input → low output). Housed in a compact SO6L package, the photocouplers provide a creepage distance of 8mm and isolation voltage of 5kVrms, with a thickness of just 2.3mm, and are designed to support a wide supply voltage range (VCC= 4.5V to 30V). The devices also support an operating temperature range of -40°C to 110°C, 3mA (max) supply current and ±30kV/µs (min) common mode transient immunity.

The photocouplers are available.





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