High speed photocoupler works with dual polarity input for servo motors and PLCs
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By
eeNews Europe
PLC applications accept one of two different polarity inputs: sink logic input and source logic input. The TLP2391 supports both sink and source logic by
combining two LEDs in inverse parallel, eliminating the need for a bridge circuit.
The device supports 10 Mbps high speed communications, twice as fast as other Toshiba dual input photocouplers allowing use in communications interfaces in industrial applications. The IC’s 2.3 mA low input current drive (@ VCC = 3.3V) and 1 mA low supply current contribute to energy efficiency.
Mass production is scheduled to start in December 2013.
More information about the TLP2391 photocoupler at
www.semicon.toshiba.co.jp/info/lookup.jsp?pid=TLP2391&lang=en
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