DESCRIPTION

The 4N25 family is an Industry Standard Single Channel Phototransistor Coupler. This family includes the 4N25, 4N26, 4N27, 4N28. Each optocoupler consists of gallium arsenide infrared LED and a silicon NPN phototransistor.

FEATURES

• Isolation test voltage 5000 VRMS

• Interfaces with common logic families

• Input-output coupling capacitance < 0.5 pF

• Industry standard dual-in-line 6-pin package

• Compliant to RoHS Directive 2002/95/EC and in accordance to WEEE 2002/96/EC

APPLICATIONS

• AC mains detection

• Reed relay driving

• Switch mode power supply feedback

• Telephone ring detection

• Logic ground isolation

• Logic coupling with high frequency noise rejection