HCPL-2232

Logic Output Optoisolators Overview

The HCPL-2232 is a dual-channel high-speed logic gate optocoupler featuring an AlGaAs LED and detectors with totem pole output stages. It provides a data rate of 5 MBd, propagation delay of 150 ns, and rise/fall times of 30 ns/7 ns. The device supports a supply voltage range of 4.5V to 20V and offers 3750 Vrms isolation with 10 kV/µs common-mode transient immunity. Operating temperatures span from -40°C to +85°C in DIP-8 or SOIC-8 packages.

Logic Output Optoisolators Feature Summary

• Integrates GaAsP LED with optical receivers featuring totem pole outputs and built-in Schmitt triggers for direct logic compatibility without external waveform shaping.
• Delivers high common-mode rejection capability of 10 kV/µs at 1000V common-mode voltage, ensuring reliable signal transmission in electrically noisy environments.
• Supports wide supply voltage operation from 4.5V to 20V, enabling compatibility with TTL, LSTTL, and CMOS logic families while maintaining low input current consumption.

Logic Output Optoisolators Applications

• High-speed digital signal isolation in microprocessor systems
• Computer peripheral interface connections
• Ground loop elimination in industrial control circuits
• Replacement for pulse transformers in high-frequency applications

Logic Output Optoisolators Procurement Notes

Verify the specific suffix (e.g., #300, -000E) against the datasheet to confirm package type and tape/reel configuration. Ensure compliance requirements such as UL 1577 and CSA certifications are documented for the specific order variant. Confirm RoHS status if restricted substances are a constraint for the target assembly process.

Logic Output Optoisolators Selection Notes

Select this component when high-speed data transfer up to 5 MBd is required alongside robust noise immunity. The integrated Schmitt trigger simplifies circuit design by eliminating the need for external signal conditioning. Verify that the 3750 Vrms isolation rating meets the safety standards of the application environment.

Logic Output Optoisolators Part Context

Part of the Broadcom HCPL series, designed for industrial-grade signal isolation. It distinguishes itself through the combination of high CMTI and logic-compatible outputs. The device serves as a critical interface between disparate voltage domains in computing and automation hardware.

Logic Output Optoisolators Replacement Considerations

Direct substitutes include other dual-channel high-speed optocouplers with similar pinouts and electrical characteristics. Verify that any replacement maintains the 5 MBd data rate and 10 kV/µs CMTI specifications to ensure system integrity.

Logic Output Optoisolators FAQ

Does the HCPL-2232 require external components for logic level conversion?

No, the internal Schmitt trigger and totem pole output provide logic-compatible waveforms, eliminating the need for external waveform shaping circuits.

What is the maximum common-mode transient immunity of this device?

The device achieves a common-mode transient immunity of 10 kV/µs at a common-mode voltage of 1000V.