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50Mbaud IC photocoupler has low propagation delay

Posted: 13 Jun 2007 ?? ?Print Version ?Bookmark and Share

Keywords:IC photocoupler?

TLP117 photocouplers from TAEC

Toshiba America Electronic Components Inc. (TAEC) has expanded its family of IC photocouplers for high speed digital transmission applications with the introduction of TLP117, a 5V, 50Mbaud device.

TLP117 addresses applications with demanding isolation and switching speed requirements, including system I/O interfaces and factory automation networks.

Developed by Toshiba Corp., TLP117 is an optically coupled isolator consisting of a gallium aluminum arsenide (GaAlAs) LED and an integrated high-gain, high speed photo detector. Compared to Toshiba's 5V, 20MBaud TLP116, the new device reduces the propagation delay from 60ns to 30ns, while maintaining high common mode transient immunity of 10KV/?s, and a high isolation voltage of 3.75kVrms. The TLP117 also uses a BiCMOS process to achieve low power consumption.

"With its very low propagation delay, high isolation voltage and high transient immunity, the TLP117 now offers designers the option to use our photocoupler technology in a wide range of applications that require higher switching speed," said Jeff Lo, business development manager, optoelectronics, TAEC.

TLP117 has an operating voltage (typ.) of >5V and an input current logic low output rating of 5mA. It offers a max output current of 10mA and an isolation voltage (min.) of 3,750Vrms.

TLP117 is offered in a compact 5-pin MFSOP6 package, measuring 4.4-by-3.6-by-2.5mm, making ti suitable for space-constrained applications. The optocoupler also features a wide operating temperature range of -40C to 105C, and is compatible with the Pb-free reflow soldering process and RoHS requirements.

Samples of TLP117 are available now, with pricing set at $1.75 each.

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