All Alternatives

Alternatives to STMicroelectronics L9906TR

STMicroelectronics L9906TR and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

L9906TR compared against its qualified second sources
L9906TRSTMicroelectronicsL9907TRSTMicroelectronicsL9908TRSTMicroelectronics+2more
FFF CompatibilityHoused in the same 64-TQFP footprint; however, the electrical pin assignments are different, and it transitions to an SPI interface instead of the legacy ISO 9141 bus.Identical TQFP-64 (10x10x1 mm) mechanical package format.Performs the identical 3-phase BLDC pre-driver function with superior electrical ratings, diagnostic protections, and functional safety support.Uses a smaller 48-TQFP package with a completely different pin layout, requiring a physical PCB redesign.The physical package is smaller (48-TQFP vs 64-TQFP).Meets or exceeds all electrical pre-driver functional parameters with superior voltage capability and diagnostic resolution.
AI Summary

L9906TR by STMicroelectronics: Motor / Motion / Ignition Controllers & Drivers 3-Phase Motor Control Driver.

The L9907 is the recommended modern successor to the obsolete L9906, utilizing the same physical 64-TQFP package dimensions while modernizing the interface to SPI and upgrading thermal and overvoltage resilience. Because the pin mapping is different, a layout verification is required.

  • Direct product generation successor from the same manufacturer (STMicroelectronics)
  • Same 64-TQFP package footprint (10x10x1 mm) minimizing physical layout spacing changes
  • Greatly expanded supply voltage range of 4.2V to 54V (withstanding up to 90V transients)
  • Requires updating the microcontroller firmware to communicate over SPI instead of the older ISO 9141 (K-Line) diagnostic interface
  • Pinout assignments are not a direct match, requiring schematic modifications and board trace adjustments

The L9908 is ST's next-generation 3-phase gate driver, offering state-of-the-art diagnostics and up to 75V supply compatibility. It is housed in a smaller 48-TQFP package, making it an excellent alternative if the system is undergoing a redesign.

  • Extremely wide operating voltage range up to 75V, accommodating 12V, 24V, and 48V systems
  • Highly integrated advanced diagnostic and functional safety features designed for next-generation automotive designs
  • Active lifecycle status ensures long-term availability for newer system revisions
  • Requires full PCB redesign to migrate from 64-TQFP to the smaller 48-TQFP footprint
  • Significantly different software interface protocol over SPI compared to the obsolete driver
Lifecycle StatusObsoleteUnknownUnknown
Market AvailabilityDiscontinuedUnknownUnknown
REACHUnknownUnknownUnknown
RoHSRoHSUnknownUnknown
DescriptionMotor / Motion / Ignition Controllers & Drivers 3-Phase Motor Control DriverThe L9907 is the recommended modern successor to the obsolete L9906, utilizing the same physical 64-TQFP package dimensions while modernizinThe L9908 is ST's next-generation 3-phase gate driver, offering state-of-the-art diagnostics and up to 75V supply compatibility. It is house
ManufacturerSTMicroelectronicsSTMicroelectronicsSTMicroelectronics
TypeMotor / Motion / Ignition Controllers & DriversComponentComponent
DatasheetN/AN/AN/A
Lead TimeUnknownUnknownUnknown
Country of Origin---
Export Control Class NumberEAR99EAR99EAR99
HTSUS Code8542390090--
Moisture Sensitivity Level---

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Frequently asked questions

Yes. The STMicroelectronics L9906TR is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.

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