HCPL-273L#500

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL-273L#500 is a high-speed optocoupler manufactured by Broadcom Limited. It features two channels with photodarlington outputs, providing an isolation voltage of 3750 Vrms. The device operates at data rates up to 100 kb/s and supports dual supply voltages of 3.3V or 5V. Key electrical parameters include a maximum forward current of 20 mA, a typical forward voltage of 1.5 V, and a maximum output current of 60 mA per channel. The current transfer ratio reaches up to 2600% at 1.6 mA input. It is housed in an 8-DIP Gull Wing package suitable for through-hole mounting.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates a light emitting diode with an integrated high gain photodetector for signal transmission
• Provides robust electrical isolation between input and output circuits
• Compatible with LVTTL and LVCMOS logic families due to low input current requirements

Transistor, Photovoltaic Output Optoisolators Applications

• Driving low-speed logic circuits
• Connecting transistor or interface stages
• General purpose digital isolation where high gain is required

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity as the HCPL-273L series has reached end-of-life status. Confirm RoHS compliance details, as some sources indicate non-compliance. Ensure the specific suffix matches the required reel or cut tape configuration. Check for available substitutes from the manufacturer's portfolio if long-term supply stability is required for production.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high current transfer ratio is necessary to drive loads directly without additional amplification. The photodarlington output offers higher gain than standard phototransistor variants but may have slower switching speeds compared to logic-output couplers. Verify that the 100 kBd data rate meets system timing requirements and that the 60 mA output current capacity suits the load impedance.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the HCPL-270L/070L/273L/073L high gain series from Broadcom. These couplers are designed to provide high gain using an LED and integrated photodetector. The HCPL-273L specifically denotes a dual-channel variant within this family, distinguishing it from single-channel models like the HCPL-270L.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

• HCPL-2731

Transistor, Photovoltaic Output Optoisolators FAQ

What is the maximum output current per channel?

The maximum collector current is 60 mA per channel.

Is the output type a phototransistor or photodarlington?

The output type is a photodarlington, which provides higher current transfer ratio than standard phototransistors.