High speed photo couplers work at 2.2V

Author: EIS Release Date: Jul 10, 2020


Toshiba has introduced a pair of fast opto-couplers that will work from 2.2V, allowing them to work from the 2.5V rail of LVCMOS, for example, as well as up to 5.5V.

Typical 3.3V data rates are:

  • TLP2312 5Mbit/s
  • TLP2372 20Mbit/s

The threshold input current of 1.6mAmax and the supply current of 0.5mAmax at entire operating temperature range of -40°C to 125°C enables TLP2312 to be driven from a microcontroller directly,” said the company.

They come in 3.7 x 7nn (inc leads) 5pin SO6 packages with a maximum height of 2.3mm.

The detector sides have totem-pole outputs with current sourcing and sinking capabilities.

Inside is a Faraday shield that provides guaranteed common-mode transient immunity of ±20kV/µs.

Pulse width distortion in either device is 20ns max.

Input to output isolation is to 3,750Vrms (min).

Safety standards

  • UL-recognised: UL 1577, File No.E67349
  • cUL-recognised: CSA Component Acceptance Service No.5A File No.E67349
  • VDE-approved (Option V4 only): EN 60747-5-5, EN 62368-1
  • CQC-approved: GB4943.1, GB8898 Japan Factory (Pending)

Application is expected in programmable logic controllers (PLCs), measurement or control equipment.