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Alternatives to STMicroelectronics L9906TR

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

Equivalent and substitute parts for STMicroelectronics L9906TR

L9906TR compared against its qualified second sources
L9906TRSTMicroelectronicsL9907TRSTMicroelectronicsL9908TRSTMicroelectronics
FFF CompatibilityThe pinout layout and pin assignments are completely different from the legacy L9906, requiring a full PCB schematic and routing redesign.Both parts share the same physical TQFP-64 package style with identical 10x10x1 mm physical dimensions and landing footprints.Performs the same fundamental task of driving 6 N-channel MOSFETs for 3-phase BLDC motors while delivering modernized control, enhanced current sensing, and better protection profiles.Housed in a different pin-count package (TQFP-48 vs TQFP-64) with completely different pin assignments.The TQFP-48 package is physically smaller (7x7 mm) compared to the original TQFP-64 (10x10 mm).Highly capable 3-phase gate driver offering superior diagnostic, protection, and configuration options.
AI Summary

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

The L9907TR is the direct modern successor to the obsolete L9906, keeping the same physical package size while upgrading the operating voltage range up to 54V and modernizing control to SPI. Because the pin mapping is different, a layout redesign and MCU firmware update are required.

  • Direct modern successor from the same manufacturer (STMicroelectronics).
  • Shares the exact same TQFP-64 package size (10x10x1 mm).
  • Significantly improved operating supply voltage range of 4.2V to 54V (withstanding up to 90V transients).
  • Requires replacing the legacy ISO 9141 (K-Line) interface with modern SPI communications in the MCU firmware.

The L9908TR is STMicroelectronics' next-generation 3-phase driver, offering cutting-edge safety features and up to 75V compatibility. It is housed in a more compact TQFP-48 package, making it an excellent replacement if a full board redesign is planned.

  • Latest generation 3-phase gate driver with highly advanced diagnostics and safety features.
  • Supports higher operating supply voltages up to 75V for improved robustness.
  • Much smaller physical footprint (7x7 mm TQFP-48 vs 10x10 mm TQFP-64).
  • Requires a complete PCB redesign to accommodate the smaller 48-pin package and modernized digital interface.
Lifecycle StatusObsoleteActiveActive
Market AvailabilityDiscontinuedNon-stockIn stock
REACHUnknownREACHREACH
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