HCPL-3150#500 Equivalent & Substitute Parts

Part Overview

The HCPL-3150#500 is a 3750Vrms optical isolation gate driver manufactured by Broadcom Limited, designed for single-channel galvanic isolation applications in power electronics. This component provides 600mA peak output current with 500ns propagation delay and operates across -40°C to 100°C. The part is currently active in production with 2006 units in stock. Substitute parts are identified to address supply availability, enhanced performance specifications, or alternative sourcing requirements while maintaining functional compatibility within the optical coupling gate driver category.

Substiute Parts

HCPL-3150#500

Broadcom LimitedIn Stock: 2113HCPL-3150#500 Datasheet

Current PartRFQ

FOD3180S

onsemiIn Stock: 1311FOD3180S Datasheet

MFR RecommendedRFQ

FOD3180SD

Fairchild SemiconductorIn Stock: 30110FOD3180SD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HCPL-3150#500 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Single-channel optical coupling gate driver topology
• Isolation voltage rating of 3750Vrms or higher
• Common mode transient immunity of 15kV/µs or greater
• 8-pin SMD Gull Wing package configuration
• Operating temperature range of -40°C to 100°C or wider
• Output supply voltage range compatible with 15V ~ 30V operation

Identified Substitute Parts: The FOD3180S (onsemi) and FOD3180SD (Fairchild Semiconductor) meet all mandatory compatibility criteria. Both parts exceed the isolation voltage requirement at 5000Vrms, maintain the 15kV/µs common mode transient immunity specification, and are packaged in 8-SMD Gull Wing configuration. Both operate across the -40°C to 100°C temperature range and support output supply voltages within the 10V ~ 20V range, which overlaps with the primary part's 15V ~ 30V specification.

Parameter Comparison

Engineering Selection Recommendations

Compliance and Certification Status:

The HCPL-3150#500 carries RoHS non-compliant status with CSA and UR approvals. The FOD3180S (onsemi) is ROHS3 compliant with cUL and UL certifications. The FOD3180SD (Fairchild Semiconductor) is compliant with cUL and UL certifications. Both substitute parts maintain REACH Unaffected status and EAR99 export classification consistent with the primary part.

Performance Differential:

The FOD3180S and FOD3180SD provide enhanced electrical performance relative to the HCPL-3150#500, including reduced propagation delay (200ns versus 500ns), lower pulse width distortion (65ns versus 300ns), and higher peak output current capability (2.5A versus 600mA). The isolation voltage rating is increased to 5000Vrms. These specifications represent performance improvements rather than functional limitations.

Output Supply Voltage Consideration:

The substitute parts operate within a 10V ~ 20V output supply range, which is narrower than the primary part's 15V ~ 30V specification. Applications requiring output supply voltages above 20V require verification of circuit compatibility.

Inventory and Availability:

FOD3180SD (Fairchild Semiconductor) maintains the highest inventory level at 30,100 units. FOD3180S (onsemi) has 1,220 units available. The primary part HCPL-3150#500 has 2,006 units in stock.

Frequently Asked Questions (FAQ)

Q: Can FOD3180S or FOD3180SD be used as direct replacements for HCPL-3150#500?

A: Both FOD3180S and FOD3180SD meet the mandatory compatibility criteria for single-channel optical coupling gate drivers with matching isolation voltage (or higher), common mode transient immunity, package configuration, and operating temperature range. Functional substitution is valid within the specified electrical parameters. Verify output supply voltage requirements fall within the 10V ~ 20V range of the substitute parts.

Q: What are the key differences between FOD3180S and FOD3180SD?

A: Both parts are electrically identical with identical electrical specifications. The primary differences are manufacturer (onsemi versus Fairchild Semiconductor), packaging format (Tube versus Bulk), and inventory availability. FOD3180SD offers significantly higher stock levels.

Q: Does the higher isolation voltage of the substitute parts affect circuit design?

A: The 5000Vrms isolation rating of FOD3180S and FOD3180SD exceeds the 3750Vrms requirement of HCPL-3150#500. This represents an enhanced safety margin and does not require circuit modification. The higher rating is compatible with applications designed for the lower rating.

Q: Are there RoHS compliance implications when substituting?

A: The HCPL-3150#500 is RoHS non-compliant. Both FOD3180S and FOD3180SD are ROHS3 compliant. Applications subject to RoHS requirements should use the substitute parts. Applications without RoHS requirements can use either part.

Q: How do the propagation delay differences impact circuit timing?

A: The substitute parts provide 200ns propagation delay compared to 500ns for the primary part. This represents a 60% reduction in delay. Applications with timing-critical gate drive signals benefit from the faster response. Applications designed for 500ns delay tolerance will function correctly with the faster substitute parts.

Q: What is the significance of the 2.5A peak output current in the substitute parts?

A: The FOD3180S and FOD3180SD provide 2.5A peak output current versus 600mA for HCPL-3150#500. This increased current capability supports higher gate charge delivery rates and faster switching transitions in power semiconductor applications. Applications requiring only 600mA will operate within the capability margin of the substitute parts.