HCPL-3180 Equivalent & Substitute Parts

Part Overview

The HCPL-3180 is a 1-channel optical isolation gate driver manufactured by Broadcom Limited, designed for high-voltage switching applications requiring galvanic isolation. This component provides 3750Vrms isolation with 2.5A peak output current in an 8-DIP through-hole package. The part is currently active in production with 12,650 units in stock.

Substitute parts are identified when equivalent functional performance can be achieved within the allowed electrical and mechanical parameters of the gate driver category, including isolation voltage, output current capability, propagation delay, and package compatibility.

Substiute Parts

HCPL-3180

Broadcom LimitedIn Stock: 12700HCPL-3180 Datasheet

Current PartRFQ

FOD3180

onsemiIn Stock: 103016FOD3180 Datasheet

DirectRFQ

FOD3120V

onsemiIn Stock: 2175FOD3120V Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HCPL-3180 are qualified based on the following criteria:

Electrical Compatibility:

• Optical coupling technology (same isolation method)
• Single-channel configuration
• Isolation voltage equal to or greater than 3750Vrms
• Peak output current equal to or greater than 2.5A
• Output supply voltage range compatibility with 10V ~ 20V minimum requirement
• Propagation delay and pulse width distortion within acceptable gate driver performance windows

Mechanical Compatibility:

• 8-DIP package format (0.300", 7.62mm)
• Through-hole mounting type

Regulatory Consideration:

• Product status: Active (current production availability)

The identified substitutes meet or exceed the electrical performance requirements while maintaining package and mounting compatibility.

Parameter Comparison

Engineering Selection Recommendations

FOD3180 (onsemi): This part provides direct electrical substitution with identical propagation delay (200ns) and pulse width distortion (65ns) characteristics. The FOD3180 offers higher isolation voltage (5000Vrms vs. 3750Vrms) and improved common mode transient immunity (15kV/µs vs. 10kV/µs). Output supply voltage range and peak current specifications are equivalent. The FOD3180 is ROHS3 compliant and actively produced with 102,920 units in stock. Operating temperature range is reduced to -40°C ~ 100°C.

FOD3120V (onsemi): This part provides enhanced performance with higher peak output current (3A vs. 2.5A) and superior common mode transient immunity (35kV/µs). The FOD3120V operates with an extended output supply voltage range (15V ~ 30V). Propagation delay is doubled (400ns vs. 200ns) and pulse width distortion is increased (100ns vs. 65ns), which may impact timing-critical applications. The FOD3120V is ROHS3 compliant with 2,067 units in stock. Operating temperature range is -40°C ~ 100°C.

Both onsemi substitutes are active production parts with regulatory compliance certifications (cUL, UL for FOD3180; IEC, UL for FOD3120V) and are suitable for applications where the HCPL-3180 is unavailable.

Frequently Asked Questions (FAQ)

Q: Can FOD3180 be used as a direct replacement for HCPL-3180?

A: Yes. The FOD3180 maintains identical propagation delay and pulse width distortion specifications while providing higher isolation voltage and improved transient immunity. Both parts use 8-DIP through-hole packaging and support the same 10V ~ 20V output supply voltage range. The primary difference is the reduced operating temperature maximum (100°C vs. 125°C) and improved RoHS compliance status.

Q: What are the key differences between FOD3180 and FOD3120V?

A: The FOD3180 provides timing characteristics identical to the HCPL-3180 (200ns propagation delay, 65ns pulse width distortion), while the FOD3120V has slower timing (400ns propagation delay, 100ns pulse width distortion) but higher output current capability (3A vs. 2.5A) and superior common mode transient immunity (35kV/µs). The FOD3120V also requires a higher minimum output supply voltage (15V vs. 10V).

Q: Are all three parts compatible with the same PCB layout?

A: Yes. All three parts use identical 8-DIP (0.300", 7.62mm) through-hole packaging and can be mounted in the same footprint without layout modifications.

Q: Which substitute should be selected for high-speed switching applications?

A: The FOD3180 maintains the same propagation delay and pulse width distortion as the HCPL-3180 (200ns and 65ns respectively), making it suitable for timing-critical applications. The FOD3120V has significantly longer propagation delay (400ns) and should be evaluated for timing compatibility in high-speed circuits.

Q: What is the impact of the reduced operating temperature range in the onsemi substitutes?

A: Both FOD3180 and FOD3120V operate to a maximum of 100°C, compared to 125°C for the HCPL-3180. Applications requiring operation above 100°C must retain the HCPL-3180 or evaluate alternative solutions.

Q: Are the onsemi substitutes RoHS compliant?

A: Yes. Both FOD3180 and FOD3120V are ROHS3 compliant, whereas the HCPL-3180 is RoHS non-compliant. This may be a requirement for new designs or procurement specifications.