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AlGaAs LEDs Speed Up Toshiba`s IC MOSFETS In IC Photocouplers

Combining aluminium gallium arsenide (AlGaAs) with a silicon device reaps the benefits of both technologies
Toshiba America Electronic Components (TAEC)  has added the TLP700A and TLP705A to its family of photocouplers.

The new photocouplers are housed in small packages (SDIP6),  half the size of conventional 8 pin DIP packages, and consist of an AlGaAs infrared LED, optically coupled to an integrated high-gain, high-speed photodetector IC chip.

Toshiba says its TLP700A can directly drive a middle-capacity IGBT or power its MOSFETs.

With a guaranteed transmission delay skew, ideal for designing dead time for inverters, this product achieves a shorter transmission delay time,  roughly half of the firm's previous model.

With improved peak output current and operating ambient temperature, the TLP700A is suitable for use in high temperature environments. The device also complies with the reinforced insulation class of international safety standards.

The TLP700A can be used in a wide range of products, including industrial devices, digital home appliances, measurement devices, and control devices. Its small packaging can contribute to a smaller footprint and cost reduction.

The TLP705A can directly drive a small-capacity IGBT and power MOSFETs.

Using a new LED with excellent longevity, the TLP705A has better output current, variation in transmission delay time, and transmission delay skew characteristics than those of the existing model.

Toshiba's new IC complies with the reinforced insulation class of the international safety standards, and can be used in a wide range of products - including industrial devices, digital home appliances, measurement and control devices.

According to Joseph Tso, business development manager for Toshiba's optoelectronics discrete business unit, "Toshiba's new photocouplers provide a smaller footprint solution for applications that require safety standard certifications, while also contributing to cost reductions."

The Toshiba TLP700A and TLP705A are available now.

 



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