L6480 and L6482 Stepper Motor Drivers

The cSPIN fully integrated, microstepping motor controller with motion engine and SPI from STMicroelectronics

Image of STMicroelectronics' L6480 and L6482 Stepper Motor DriversThe STMicroelectronics L6480 and L6482, realized in analog mixed signal technology, are advanced, fully-integrated solutions suitable for driving two-phase bipolar stepper motors with microstepping. They integrate a dual full-bridge gate driver for N-channel MOSFET power stages with embedded non-dissipative overcurrent protection. Thanks to a unique voltage-mode driving mode, which compensates for BEMF, bus voltage and motor winding variations, the microstepping of a true 1/128-step resolution is achieved in the L6480 model.

Thanks to a new current control, a 1/16 microstepping is achieved in the L6482 model 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, dead time, 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 L6480 "bullet proof", as required by the most demanding motor control applications.

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 1/128 microstepping
  • Sensorless stall detection
  • Integrated voltage regulators
  • SPI interface
  • Low quiescent standby currents
  • Programmable non-dissipative overcurrent protection
  • Overtemperature protection

L6480 and L6482 Stepper Motor Drivers

ImageManufacturer Part NumberDescriptionAvailable Quantity
L6480HTR datasheet linkIC MOTOR CONTROLLER SPI 38HTSSOPL6480HTRIC MOTOR CONTROLLER SPI 38HTSSOP3093 - Immediate
L6480HTR product page link
EVAL6480H datasheet linkBOARD DEMO L6480H MOTOR DRIVEREVAL6480HBOARD DEMO L6480H MOTOR DRIVER46 - Immediate
EVAL6480H product page link
EVAL6482H datasheet linkBOARD EVAL FOR L6482HEVAL6482HBOARD EVAL FOR L6482H35 - Immediate
EVAL6482H product page link
L6482HTR datasheet linkIC MOTOR CONTROLLER SPI 38HTSSOPL6482HTRIC MOTOR CONTROLLER SPI 38HTSSOP95 - Immediate
L6482HTR product page link
Published: 2013-04-04