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Toshiba photocoupler supports up to 400ns

Posted: 13 Jul 2004 ?? ?Print Version ?Bookmark and Share

Keywords:toshiba america electronic components? taec? photocoupler? tlp106?

Toshiba America Electronic Components Inc. (TAEC) introduced a high-speed, high-gain photocoupler that supports signal transmission and switching speeds up to 400ns.

Developed by Toshiba Corp. and designated TLP106, the new device is intended for signal isolation in intelligent power modules, industrial inverters and motor drives. According to TAEC, they developed the new photocoupler "to meet increasingly stringent isolation and switching requirements of intelligent power modules, industrial inverters and similar applications."

The TLP106 is an optically coupled isolator consisting of a gallium aluminum arsenide (GaAlAs) LED and an integrated high-gain, high-speed photo detector. It offers a propagation delay of 400ns, isolation voltage of 3.75kV(rms), common mode transient immunity of 10kV/?s, and threshold input current requirements of 3mA.

Designed for space constrained applications, the photocoupler is a buffer logic device suitable for use as an active intelligent power module gate driver. The totem pole output structure of the product makes bidirectional drive possible for both the sink and the source, thereby eliminating the need for an external pull-up resistor.

Toshiba said that by optimizing the internal circuitry of the component, they achieved a wide operating temperature range from -40C to 85C. The shielded photodetector of the TLP106 also provides for excellent input and output noise characteristics.

Operating with a supply voltage of 4.5V to 20V, the TLP106 is packaged in a surface-mount 6-pin MFSOP and is available for $1 each.





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