Broadcom HCPL-2731-000E

These dual- channel optocouplers contain a separated pair of GaAsP light- emitting diodes optically coupled to a pair of integrated high- gain photodetectors. They provide extremely high current transfer ratio and excellent input- output common mode transient immunity. A separate pin for the photodiodes and first gain stages (VCC) permits lower output saturation voltage and higher speed operation than possible with conventional photo- darlington type optocouplers. In addition, VCC may be as low as 1.6V without adversely affecting the parametric performance.

The SO- 8 does not require "through holes" in a PCB. This package occupies approximately one- third the footprint area of the standard dual- inline package. The lead profile is designed to be compatible with standard surface mount processes.

• High current transfer ratio - 1800% typical
• Low input current requirements - 0.5mA
• Low output saturation voltage - 0.1V
• High density packaging
• Performance guaranteed over temperature 0°C to 70°C
• LSTTL compatible
• High output current - 60 mA
• Safety approval: UL recognized - 3750 V rms for 1 minute and 5000 Vrms (see Note) for 1 minute
• CSA approved
• Available in 8- pin DIP and SO- 8 footprint
• MIL- PRF- 38534 hermetic version available (HCPL- 5730/5731)
• Surface mount gull wing option available for 8- pin DIP (Option 300)

• Digital logic ground isolation
• Telephone ring detector
• Level shifting
• EIA RS- 232C line receiver
• Polarity sensing
• Low input current line receiver - long line or party line
• Microprocessor bus isolation
• Current loop receiver
• Line voltage status indicator - low input power dissipation