HCPL0637R1

Logic Output Optoisolators Overview

The HCPL0637R1 is a discontinued high-speed logic output optocoupler manufactured by onsemi. It features two channels with an open-collector, Schottky-clamped output configuration. The device supports data rates up to 10 Mbps and provides an isolation voltage of 3750 Vrms. Key electrical parameters include a maximum propagation delay of 75 ns for both low-to-high and high-to-low transitions, with typical rise and fall times of 17 ns and 5 ns respectively. It operates within a supply voltage range of 4.5V to 5.5V and withstands a minimum common-mode transient immunity of 5 kV/µs. The component is housed in an 8-SOIC package and functions across a temperature range of -40°C to 85°C.

Logic Output Optoisolators Feature Summary

• High-speed operation supporting 10 Mbps data transmission rates
• Dual-channel architecture with open-collector outputs allowing wired-OR functionality
• Integrated Schottky clamping on the output stage
• Robust isolation performance with 3750 Vrms rating

Logic Output Optoisolators Applications

• High-speed digital signal isolation in industrial control systems
• Data communication interfaces requiring galvanic isolation
• Microprocessor system interfacing where noise immunity is critical

Logic Output Optoisolators Procurement Notes

Verify that the HCPL0637R1 designation refers to the reel-packaged variant of the HCPL0637. Confirm availability status as this specific suffix may indicate end-of-life or limited stock conditions compared to standard tube packaging. Cross-reference with current onsemi documentation to ensure compatibility with existing designs before procurement.

Logic Output Optoisolators Selection Notes

Select this component when dual-channel isolation at 10 Mbps is required with open-collector outputs. Ensure the design accommodates the 4.5V to 5.5V supply range and 8-SOIC footprint. Consider the Schottky-clamped output characteristics for driving specific load requirements. Verify thermal management capabilities within the specified operating temperature range.

Logic Output Optoisolators Part Context

The HCPL0637 belongs to the HCPL06XX family of high-speed logic gate optocouplers from onsemi. This family utilizes an AlGaAS LED coupled to a high-speed integrated photodetector logic circuit. The HCPL0637 specifically offers dual-channel isolation, distinguishing it from single-channel variants like the HCPL0600 or HCPL0601 within the same product line.

Logic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers: HCPL0637. Note that HCPL0637R1 is listed as discontinued; the standard HCPL0637 is available as a direct replacement.