HCPL-4506

Logic Output Optoisolators Overview

The HCPL-4506 is a single-channel logic output optocoupler featuring an open collector, Schottky-clamped output structure. It operates with a DC input and supports data rates up to 1 Mbps. The device provides an insulation voltage of 3750 Vrms and a common mode transient immunity (CMTI) of at least 15 kV/µs. It functions within a supply voltage range of 4.5 V to 30 V and includes a built-in 20 kΩ pull-up resistor between pins 6 and 7. The propagation delay is characterized by a maximum tpLH of 550 ns and tpHL of 400 ns. The unit is housed in an 8-pin PDIP package and operates across a temperature range of -40°C to +100°C.

Logic Output Optoisolators Feature Summary

• Integrated 20 kΩ pull-up resistor between output pins for simplified circuit design
• Schottky-clamped open collector output structure for robust signal integrity
• High common mode transient immunity of 15 kV/µs for noise resistance
• Minimized propagation delay difference to reduce switching dead time

Logic Output Optoisolators Applications

• Isolated IGBT and MOSFET gate driving
• Smart Power Module (IPM) interfaces
• AC and brushless DC motor drivers
• Industrial power supplies and inverters

Logic Output Optoisolators Procurement Notes

Verify the specific suffix code on the component marking against the official Broadcom datasheet to confirm the exact LED material variant (GaAsP or AlGaAs) and insulation rating. Ensure the ordering part number matches the required packaging format, as standard tubes differ from tape-and-reel options. Confirm RoHS compliance status for the specific batch if environmental regulations are critical to the assembly process.

Logic Output Optoisolators Selection Notes

Select this component when high-speed digital isolation is required for power switching applications. The integrated pull-up resistor makes it suitable for direct IPM interfacing without external components. Consider the 30 V maximum supply voltage limit when designing circuits for SiC devices. Verify that the 15 mA continuous output current meets the drive requirements of the target load.

Logic Output Optoisolators Part Context

This device belongs to the HCPL series of logic output optocouplers manufactured by Broadcom Limited. It is designed specifically for high-performance isolation in industrial and automotive environments. The series emphasizes reliability and speed, utilizing advanced GaAsP or AlGaAs LED technology to ensure consistent performance over the specified operating temperature range.

Logic Output Optoisolators Replacement Considerations

The HCPL-J456 and HCNW4506 are documented variants within the same family, differing primarily in LED material composition. Verify pinout compatibility and electrical parameter equivalence before substitution. Cross-reference specific insulation ratings and CMTI values to ensure they meet the original design specifications.