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Alternatives to STMicroelectronics L6470PDTR

STMicroelectronics L6470PDTR and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

Equivalent and substitute parts for STMicroelectronics L6470PDTR

L6470PDTR compared against its qualified second sources
L6470PDTRSTMicroelectronicsL6472PDTRSTMicroelectronicsL6470HTRSTMicroelectronics+1more
FFF CompatibilityThe pin assignment and thermal pad connection of L6472PDTR are an exact 1:1 match to L6470PDTR in the PowerSO-36 package.Both components use the identical PowerSO-36 package, allowing immediate physical interchangeability.While key electrical parameters match, L6472 uses current-mode control with up to 1/16 microstepping, whereas L6470 uses voltage-mode control with up to 1/128 microstepping.Housed in a 28-pin HTSSOP package, which is completely incompatible with the 36-pin PowerSO footprint.The HTSSOP-28 package has significantly smaller dimensions and a different lead pitch, requiring a PCB redesign.It uses the exact same silicon die as the L6470PDTR, offering identical electrical and functional performance.
AI Summary

L6470PDTR by STMicroelectronics: Bipolar Motor Driver DMOS SPI PowerSO-36 Slug Up.

The L6472PDTR is a direct physical and pin-compatible drop-in alternative from the same STSPIN family. It features the same 45V and 3A power ratings but implements a current-control architecture with 1/16 microstepping instead of the L6470's 1/128 voltage-mode engine. This requires minor firmware adjustments depending on your registry settings but zero hardware layout alterations.

  • Direct pin-to-pin drop-in replacement on the PCB board
  • Same PowerSO-36 package with identical thermal slug-up design
  • Identical power stage ratings (up to 45V load voltage and 3A output current)
  • Lower microstepping resolution: 1/16 step vs 1/128 step in L6470
  • Uses predictive current control instead of voltage-mode control (dSPIN)

The L6470HTR is the same silicon die housed in a smaller 28-pin HTSSOP package. It offers 100% functional, software, and electrical compatibility, making it an excellent alternative if you are able to perform a minor PCB layout redesign. This variant is ideal for space-constrained designs where the bulkier PowerSO-36 package is not strictly necessary.

  • Identical internal silicon die and features as the queried part
  • 100% firmware and register-level code compatibility
  • Supports full 1/128 microstepping and dSPIN voltage-mode motion engine
  • Requires a complete PCB board layout redesign to accommodate the HTSSOP-28 footprint
  • Lower power dissipation capability compared to the larger PowerSO-36 package
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Frequently asked questions

Yes. The STMicroelectronics L6470PDTR 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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