HCPL2731SDM

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL2731SDM is a high-speed, dual-channel optocoupler manufactured by onsemi. It features a split Darlington output configuration designed for low input current and high gain applications. The device provides electrical isolation with a rated insulation voltage of 5000 Vrms. It utilizes an 8-SMD surface-mount package and supports a data rate of 100 kb/s. Key electrical parameters include a maximum forward current of 20 mA, a typical forward voltage of 1.3 V, and an output current capability of 60 mA per channel. The component operates within a temperature range of -40°C to +100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel architecture providing independent signal isolation paths within a single package.
• Split Darlington output structure engineered to deliver high current transfer ratio with minimal input drive requirements.
• High-speed performance capability supporting data transmission rates up to 100 kb/s.
• Robust electrical isolation rated at 5000 Vrms for enhanced safety in isolated circuits.

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial automation systems requiring galvanic isolation between control logic and power stages.
• Data communication interfaces necessitating high-speed signal transmission across isolation barriers.
• Power supply feedback loops where precise signal coupling and noise immunity are critical.
• Microcontroller-based systems interfacing with high-voltage or noisy environments.

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'SDM' confirms the 8-SMD surface-mount package variant rather than through-hole versions like HCPL2731SM. Confirm RoHS compliance status and material declaration details directly from the manufacturer's latest documentation. Ensure the ordering part number matches the required tape-and-reel or cut-tape packaging format if applicable. Cross-reference the datasheet revision date to ensure all electrical characteristics align with current production standards.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when dual-channel isolation is required in a compact surface-mount footprint. The split Darlington output offers higher gain compared to standard transistor outputs, allowing for lower LED drive currents. Verify that the 100 kb/s data rate meets the system timing requirements. Ensure the operating temperature range of -40°C to +100°C covers the intended environmental conditions. Consider the 5000 Vrms isolation rating against the system's safety certification needs.

Transistor, Photovoltaic Output Optoisolators Part Context

This device belongs to the HCPL2731M series of high-speed optocouplers from onsemi. The series includes both single-channel (HCPL2730) and dual-channel variants. The HCPL2731SDM specifically denotes the surface-mount version of the dual-channel split Darlington optocoupler. It shares functional similarities with the through-hole HCPL2731SM but differs in physical package and mounting method.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The HCPL2731SM serves as a direct pin-compatible alternative in a through-hole MDIP package. For single-channel applications, the HCPL2730 may be considered if only one isolation path is needed. Verify that any substitute maintains the same split Darlington output topology and 5000 Vrms isolation rating to ensure circuit compatibility.