HCPL-4502#300

Transistor, Photovoltaic Output Optoisolators Overview

The HCPL-4502#300 is a single-channel high-speed optocoupler from the Broadcom HCPL series, housed in an 8-pin Widebody DIP surface-mount package. It features a diode-transistor architecture that utilizes separate connections for photodiode bias and output-transistor collector to minimize base-collector capacitance, enabling data rates up to 1 Mb/s. Key electrical parameters include a 3750 Vrms isolation voltage, a typical forward voltage of 1.5 V, a maximum DC forward current of 25 mA, and an output current of 8 mA. The device operates within a temperature range of -55°C to +100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High-speed operation achieved through a dedicated photodiode bias input that reduces internal capacitance.

Transistor, Photovoltaic Output Optoisolators Applications

• Digital isolation in industrial communication networks
• Signal transmission between microcontrollers and power stages
• Noise-immune interfaces in automated control systems

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix #300 confirms the surface-mount widebody DIP-8 configuration rather than standard through-hole variants. Confirm RoHS compliance status as specifications may vary by manufacturing batch or region. Ensure the supplier provides official datasheets matching the Broadcom Limited part number to validate the 1 Mb/s speed rating and 3750 Vrms isolation capability before integration.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when surface-mount assembly is required for high-speed digital isolation. The widebody package offers enhanced creepage distances compared to standard SO-8 packages. Consider the separate bias pin requirement for optimal performance, which distinguishes it from conventional phototransistor optocouplers lacking dedicated bias inputs.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the HCPL-4502/4503 family of single-channel high-speed optocouplers. These devices are designed to replace slower phototransistor couplers in applications demanding faster signal propagation. The family shares similar internal architectures but differs in packaging options such as PDIP, SO-8, and Widebody DIP configurations.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

HCPL-4502 (through-hole variant)

Transistor, Photovoltaic Output Optoisolators FAQ

What is the function of the separate bias pin on the HCPL-4502#300?

The separate bias pin connects to an integrated photodiode that accelerates the turn-off time of the output transistor by reducing base-collector capacitance, enabling higher data rates.

Does the HCPL-4502#300 support differential signaling?

No, the HCPL-4502#300 is a single-channel device with one input LED and one output transistor, not a differential pair.