HCPL-0931-500E

Overview

The HCPL-0931-500E is a dual-channel bidirectional digital isolator from Broadcom Limited, designed for high-speed full-duplex data transmission. It features a data rate of 110 MBd and provides an isolation voltage of 2500 Vrms with a common-mode transient immunity (CMTI) of 15 kV/µs. The device is housed in an 8-SOIC package with a width of 3.90 mm. Key electrical parameters include a maximum propagation delay of 15 ns and a typical rise/fall time of 7 ns. It operates within a temperature range of -40°C to +85°C and supports CMOS logic levels.

Feature Summary

• Bidirectional signal transmission enabling full-duplex communication across the isolation barrier
• High common-mode transient immunity of 15 kV/µs for reliable operation in noisy environments
• Integrated Schmitt trigger inputs to ensure clean signal transitions and noise rejection

Applications

• Industrial automation systems requiring robust galvanic isolation
• Power supply control circuits for inverters and converters
• Communication interfaces in electric vehicle charging stations

Procurement Notes

Verify the specific suffix '500E' to confirm RoHS compliance and lead-free status as per Broadcom standards. Ensure the 8-SOIC package dimensions match your PCB footprint requirements. Confirm that the 2500 Vrms isolation rating meets the safety regulations for your target application region. Check datasheet limits for operating temperature and input voltage thresholds before finalizing the design.

Selection Notes

Select this component when high-speed bidirectional data transfer is required alongside moderate isolation voltage. The 110 MBd speed suits applications like RS-485 or CAN bus isolation where latency must be minimized. Compare against single-channel variants if only one isolated path is needed. Consider the 15 kV/µs CMTI for environments with rapid voltage switching near the isolation boundary.

Part Context

This part belongs to the HCPL-09xx series of digital isolators, which utilize CMOS technology for low power consumption and high performance. It serves as a modern replacement for traditional optocouplers in high-speed digital isolation applications. The series is characterized by its ability to handle high common-mode transients without signal corruption.

Replacement Considerations

Direct substitutes may include other Broadcom HCPL-09xx variants with similar pinouts and electrical characteristics. Verify compatibility with existing PCB layouts when replacing legacy optocouplers, as pin configurations may differ. Ensure the replacement maintains the required 2500 Vrms isolation and 110 MBd data rate specifications.