Renesas – High-performance optocouplers offer extended operating temperature range (Renesas - High-performance optocouplers)

Feb 9 2012 - Switches, Relays & Onboard [More Switches, Relays & Onboard Articles]

Two new high-performance optocouplers, the PS9324 and the PS9123, have been unveiled by Renesas Electronics Europe, typically for industrial and motor control applications.

The new high-speed optocouplers are designed for 10 megabits per second (Mbps) high-speed operation over an extended temperature range: between -40C and 100C for the PS9123 series and up to 110C for the PS9324 series. The new devices comply with international safety standards such as UL, CSA and VDE (optional), making them ideally suited for applications in harsh industrial environments such as factory automation (FA), measurement equipment and motor-control.

Optocouplers are electronic components capable of electrically insulating an input signal from an output signal. In the same package, they contain an electrically insulated light-emitting diode (LED) that converts an electrical signal into light, and an electrically insulated photo-detect device that converts the light back into an electrical signal.

The PS9324 series and PS9123 series are optically-coupled high-speed isolators containing a gallium-aluminium-arsenide (GaAlAs) LED on the input side and a photodiode and a signal processing circuit on the output side on one chip.

The detector IC of the active low type PS9324 series features an open collector output and low operation voltages from 2.7V to 5.5V,　allowing flexible circuit design. A communication speed of 10Mbps can be achieved due to the specified maximum propagation delay times of 75 nanoseconds (ns) at 25C and typical values of 40ns. The PS9123 series comes with a totem pole output, offering shorter propagation delay times as low as 65ns (max) at 25C. The maximum pulse width distortion |tPHL – tPLH| is less than 35ns for the PS9324 series and less than 50ns for the PS9123 series.

For operation in noisy industrial environments the devices have an internal shield providing a common-mode transient immunity (CMTI) of minimum 15kV/µs and typical values of 20kV/µs. The PS9324 comes in a in a small 6-pin shrink dual inline package (SDIP). The small package reduces the mounting space by 50 percent compared to a classical 8-pin DIP package while guaranteeing the highest isolation voltage of 5kVrms and achieving a minimum creepage distance of 8mm (PS9324L2).

The PS9123 is housed in a 5-pin small outline package (SOP), with a minimum pin-to-pin distance of 1.27mm, facilitating space saving designs, says the company.

More news from Renesas Print Article Email article

Email Renesas directly for further information about Renesas - High-performance optocouplers

Free Sample. Tick this box if you would like to arrange having a free sample provided (at the discretion of company and subject to availibility)

Name *

Email *

Job Title

Telephone

Company

Company Website

Country

Comment *

Quantity 1-10 11-50 51-100 101-250 251-500 501-1000 1001-2000 2001-5000 5001-10000 10001-50000 Over 50000

Call me back. Tick this box if you would like someone to call you regarding this enquiry. Please remember to enter your telephone number above.

If this is your computer and you would like your contact details to be prepopulated for your next enquiry then tick this box. It requires cookies to be enabled in your browser.