High-speed Photocoupler Adds UVLO Function For Switching Power Supplies


Toshiba has launched a new high-speed Photocoupler chip, the TLP2735, featuring an under voltage lockout (UVLO) function for Digitally Controlled Switching Power Supplies and IPM Drives. UVLO reduces the photocouplers susceptibility to noise that is often generated in power supply cables, and can prevent malfunctions at switch on.

With an isolation voltage of min. 5kVrms between the input and output, as well as compliance with the IEC60747-5-5 photocoupler safety standard, the new TLP2735 is suitable for all applications that require high levels of insulation performance.

Its long creepage distance and wide operating temperature range are ideal for demanding industrial applications


The operating power supply voltage in the output side covers the 9 to 20V range, ideally suited to MOSFET gate voltages.

The high power supply voltage means that the device can also be used for IPM input insulation.

The TLP2735 offers a short propagation delay of 100ns (max) and a data transfer rate of 10Mbps.

The device is housed in a low profile SO6L surface mount package with a max. height of 2.3mm, that provides creepage and clearance distances of min. 8mm, supporting reinforced insulation requirements.

In addition, with an operating temperature range of -40 to 125°C, the device is highly suited to rugged industrial applications.

According to latest Gartner market report, Toshiba is a leading manufacturer of optocouplers by sales in 2015 and 2016, with 23% of sale-based market share in CY2016.

More information:


New Low Height And High Speed Photocoupler For High Isolation Application


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