New 10Mbps logic output photocoupler for PLCs

Toshiba Electronics Europe has released a new high-speed 10Mbps logic output photocoupler for 24V digital input PLC and other measurement and control equipment.

The new TLP2363 needs a supply current of only 4mA and is rated for a wide operating temperature range (-40C to +105C). The threshold input current (IFHL) is specified with minimum 0.3mA and maximum 2.4mA, thereby assuring conformance to the digital input standard IEC 61131-2 type 1. Uniquely for this sort of device, all that is needed to complete the design is a bridge diode and a fitting resistor for current control. The short propagation delay of just 80ns is perfect for usage with high-speed systems.

The photocoupler delivers a clear ‘high’ or ‘low’ on the output by suppressing chatter noise, even with a slow-moving input signal of 60s or less with a long rising or falling edge. As a result, there is no requirement for any waveform shaping circuitry, decreasing the quantity of components that saves PCB area and cost.

Despite being housed in a small and thin five-pin SO6 package with a maximum height of 2.3mm, the device provides a minimum isolation voltage of 3750Vrms. The common footprint provides designers to replace products from other manufacturers, enabling them to take advantage of the improved specification of the product.