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Toshiba Releases Industry’s First High-Speed Communications Photocouplers that Can Operate from a 2.2V Supply

June 30, 2020

New devices support low-voltage peripheral circuits and facilitate reductions in component count

TLP2312 and 20Mbps TLP2372

TOKYO—Toshiba Electronic Devices & Storage Corporation (“Toshiba”) has released the industry’s first[1] photocouplers for high-speed communications that can operate with a power supply as low as 2.2V. The two devices are the “TLP2312,” which delivers at typical data transfer rate of 5Mbps, and the 20Mbps “TLP2372.” Shipments start today.

The new products are designed to operate at low voltage, starting at 2.2V, so as to work with the lower voltages of the peripheral circuits, even when used in such low level voltage circuits as 2.5V LVCMOS. This approach eliminates the need for a separate power supply to drive the photocouplers, reducing the component count.

With a low threshold input current of 1.6mA (max), and low supply current of 0.5mA (max) in their -40℃ and +125℃ operating temperature range, the new photocouplers can be directly driven by microcontrollers, reducing power consumption.

The new photocouplers are housed in 5-pin SO6 package with a maximum height of 2.3mm, securing a low profile and bringing greater freedom to component layout on printed circuit boards.


High-speed digital interfaces
(programmable logic controllers (PLCs), general purpose inverters, measuring equipment and control equipment, etc.)


  • Low voltage operation: VDD=2.2V to 5.5V
  • Low threshold input current: IFLH=1.6mA (max)
  • Low supply current: IDDH, IDDL =0.5mA (max)
  • High operating temperature rating: Topr max=125℃
  • High-speed data transfer rates: 5Mbps (typ.) (TLP2312) / 20Mbps (typ.) (TLP2372)

To view the detailed product information click on the links below:



To view more information on Toshiba’s optical semiconductor devices visit: Optical Semiconductor Devices

About Toshiba America Electronic Components, Inc.

Toshiba America Electronic Components, Inc. (TAEC), an independent operating company owned by Toshiba America, Inc., is the US based electronic components business of Toshiba Electronic Devices and Storage Corporation. TAEC offers a wide variety of innovative hard disk drive (HDD) products and semiconductor solutions for data center, automotive, industrial, IoT, motion control, telecom, networking, consumer, and white goods applications. The company’s broad portfolio encompasses enterprise and consumer HDDs integrated wireless ICs, power semiconductors, microcontrollers, optical semiconductors.

[1] Among IC output photocouplers for high-speed communications, according to a survey by Toshiba, as of June 2020.

Information in this press release, including product pricing and specifications, content of services and contact information, is current and believed to be accurate on the date of the announcement, but is subject to change without prior notice. Technical and application information contained here is subject to the most recent applicable Toshiba product specifications.

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