HCPL2531W

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL2531W is a dual-channel high-speed transistor optocoupler manufactured by onsemi. It features an AlGaAs LED optically coupled to a photodetector transistor, providing electrical isolation between input and output circuits. The device supports a nominal data rate of 1 Mbps and offers a minimum current transfer ratio of 15%. It operates within a temperature range of -55°C to 100°C and includes separate connections for photodiode bias and output transistor collectors to enhance speed.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Dual-channel configuration with integrated photodetector transistors
• High common mode transient immunity exceeding 1000 V/µs
• TTL and CMOS logic compatibility
• Low input-output capacitance for signal integrity

Transistor, Photovoltaic Output Optoisolators Applications

• Line receivers requiring high common mode transient immunity
• High-speed logic ground isolation for TTL/TTL and TTL/CMOS interfaces
• Replacement for pulse transformers in space-constrained designs
• Analog signal ground isolation applications

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'W' against official onsemi documentation to confirm package type and insulation voltage ratings. Ensure compliance with RoHS directives and check for UL, IEC, or CSA certifications required by your application standards. Confirm lead times and availability through authorized distributors.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component for applications demanding high-speed digital isolation with dual channels. Consider the 1 Mbps data rate and 100°C operating temperature limit. Evaluate the need for separate bias connections to optimize switching speed. Compare with single-channel alternatives like the 6N135 if only one channel is required.

Transistor, Photovoltaic Output Optoisolators Part Context

The HCPL2531W belongs to the HCPL-2530/HCPL-2531 family of high-speed transistor optocouplers. This series is designed for robust performance in noisy environments, offering superior linearity compared to standard phototransistor couplers. It is widely used in industrial communication and computing systems.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The HCPL2531VM serves as a verified substitute part number within the same product family, offering similar dual-channel functionality with potentially different insulation voltage specifications.