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Fully integrated microstepping motor controller with motion engine and SPI
  • active Active

The L6482 device, realized in analog mixed signal technology, is an advanced fully integrated solution suitable for driving two-phase bipolar stepper motors with microstepping.

It integrates a dual full bridge gate driver for N-channel MOSFET power stages with embedded non dissipative overcurrent protection. Thanks to a new current control, a 1/16 microstepping is achieved through an adaptive decay mode which outperforms traditional implementations. The digital control core can generate user defined motion profiles with acceleration, deceleration, speed or target position easily programmed through a dedicated register set. All application commands and data registers, including those used to set analog values (i.e. current protection trip point, deadtime, PWM frequency, etc.) are sent through a standard 5-Mbit/s SPI. A very rich set of protections (thermal, low bus voltage, overcurrent and motor stall) makes the L6482 device “bullet proof”, as required by the most demanding motor control applications.

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Errata Sheet
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Key Features

  • Operating voltage: 7.5 V - 85 V
  • Dual full bridge gate driver for N-channel MOSFETs
  • Fully programmable gate driving
  • Embedded Miller clamp function
  • Programmable speed profile
  • Up to 1/16 microstepping
  • Advanced current control with auto-adaptive decay mode
  • Integrated voltage regulators
  • SPI interface
  • Low quiescent standby currents
  • Programmable non dissipative overcurrent protection
  • Overtemperature protection

Circuit Diagram

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DS9306: Microstepping motor controller with motion engine and SPI
6.0 1,283 KB

Application Notes

Description Version Size
AN4158: Peak current control with automatic decay adjustment and predictive current control: basics and setup
2.1 983 KB
AN4290: L647x, L648x and powerSTEP01 family communication protocol
2.1 487 KB
AN4354: L648x devices: gate drivers setup
2.0 269 KB
AN4355: L648x devices: high power stepper motor controllers
2.0 470 KB

User Manual

Description Version Size
UM1685: EVAL6480H and EVAL6482H: high power microstepping motor drivers
2.0 1,464 KB
UM1756: EVAL6480H-DISC and EVAL6482H-DISC: high power stepper motor driver based on the L6480H/L6482H and STM32™
2.0 11,715 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STSW-SPIN002 Evaluation software with graphical user interface for motor driver ICs (STSPIN)
EVAL6482H High power microstepping motor driver with the L6482H
STEVAL-PCC009V2 IBU Motor Control & IPS universal interface
STSW-SPIN005 Firmware library for L6480, L6482 stepper motor drivers
EVAL6482H-DISC L6482 Discovery: development tool to explore L6482 motor controller

Publications and Collaterals


Description Version Size
Smart solution for high end stepper motor driver
1.0 264 KB

Sample & Buy

Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
L6482HActiveHTSSOP38Tube-40150_-3Distributor reported inventory date: 2016-02-13
Distributor NameRegionStockMin. order
L6482HTRActiveHTSSOP38Tape And Reel-40150_-3No availability reported, please contact our Sales officeEcopack2PDF

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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