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Alternatives to onsemi FAN7387

onsemi FAN7387 and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

FAN7387 compared against its qualified second sources
FAN7387onsemiNCL30059BDR2GonsemiNCP1392DDR2Gonsemi+2more
FFF CompatibilityThe pinout configuration is completely different (VCC, Rt, and BO on pins 1-3 vs RCT, VDD, and DT/SD on the original), requiring a board redesign.Both devices are housed in a standard SOIC-8 (8-SOP) package with identical package outlines and land patterns.It provides excellent self-oscillating high-voltage half-bridge driving performance with bulk voltage support up to 600V.The pinout configuration is completely different, with swapped power, ground, and oscillator connections, necessitating a layout redesign.Both parts share the standard SOIC-8 (8-SOP) footprint and physical package dimensions.Functions as a self-oscillating half-bridge driver supporting up to 600V bulk voltage, perfectly replacing the electrical functionality.
AI Summary

FAN7387 by onsemi: onsemi SELF-OSCILLATED DRIVER.

This is the official manufacturer-recommended alternative from onsemi, offering modern performance and robust protection features. Although it is physically incompatible in pinout and requires a PCB routing change, it serves as an excellent functional upgrade with higher drive capability.

  • Direct manufacturer-recommended substitute by onsemi.
  • Excellent thermal performance and reliability in active production.
  • Higher peak drive current capability (1A sink, 0.5A source vs 0.65A/0.35A for FAN7387).
  • Pinout is incompatible, requiring a PCB layout redesign.
  • Oscillator frequency configuration is set via a single resistor (Rt) rather than an RC network (RCT), requiring different external passive components.

This is an active onsemi half-bridge driver featuring an inbuilt oscillator and a fixed 0.6 microsecond dead-time. While it requires a board redesign due to the different pinout, it provides robust high-voltage drive performance with enhanced current capability.

  • Fully active and widely available from multiple distributors.
  • Higher peak output drive current (1A sink / 0.5A source) compared to the original.
  • Features an integrated 100 ms PFC delay timer and brown-out protection.
  • Requires PCB layout modifications due to pinout differences.
  • Fixed dead-time of 0.6 microseconds compared to the adjustable dead-time on the FAN7387.
Lifecycle StatusActiveActiveUnknown
Market AvailabilityNon-stockIn stockUnknown
REACHUnknownREACHUnknown
RoHSUnknownRoHSUnknown
Descriptiononsemi SELF-OSCILLATED DRIVERLED Driver IC 2 Output DC DC Controller Half-Bridge Dimming 8-SOICThis is an active onsemi half-bridge driver featuring an inbuilt oscillator and a fixed 0.6 microsecond dead-time. While it requires a board
Manufactureronsemionsemionsemi
TypeonsemiPower Management (PMIC)Component
DatasheetN/AOpenN/A
Lead TimeUnknown24 weeksUnknown
Country of Origin---
Export Control Class NumberEAR99EAR99EAR99
HTSUS Code8542310075--
Moisture Sensitivity Level---

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Frequently asked questions

Yes. The onsemi FAN7387 is active and in production. The parts listed here are qualified equivalents if you need a second source or better availability.

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