Motor Control _ Stepper Motor

E523.30 (*SoC) | Power Stepper Controller with Stall Detection and Auto Addressing (LIN/PWM Interface)

Description

This system-in-a-chip IC controls bipolar stepper actuators with current-choppered micro-stepping. The IC is controlled by a LIN2.x interface. It's LIN-address can calculated by the “auto-addressing” feature (called “SNPD” in official LIN-specification). Alternatively the IC can be controlled by a PWM-interface, with diagnosis feedback. The integrated sensor-less “stall-detection” detects mechanical end-positions and stops the motor to re-duce acoustical noise during initialization runs. The calculating heart is an 8-bit controller which is assisted by powerful circuitry. For absolute precise positioning, up to 3 Hall-sensors or potentiometers can read out. The IC can also drive up to 3 DC motors or other loads. ICs with FLASH-memory are programmable via JTAG interface or LIN in normal or high speed mode. The IC is available with standard firmware as well as with a development system for individual firmware.

Features

  • Drives a bipolar stepper motor
  • Sensorless “stall detection”
  • I - Coil current up to 2 x 800mA (prog. chopper)
  • 5.5V - 20V supply voltage (load dump 42V)
  • Sleep mode current typically 30μA
  • Embedded 8bit μC 256 Byte RAM, 8k FLASH, 8k ROM, 32 Byte E2
  • Versions: LIN/PWM Interface, optional LIN Auto-Addressing

Applications

  • Stepper or DC motor actuators
  • Grill-Shutter
  • Head-Light adjust
  • Water valve

Ordering Information

  • Samples
    Part No.FeaturesPackageOrder No.
    E523.30 LIN or PWM-interface,
    LIN auto-addressing,
    8k customer FLASH
    QFN32L6 E52330C77B

 

  • Boards
    Part No.Demo also relative forFunctionBoard typeOrder No.
    E523.30*E523.31, E523.34, E523.37LIN Stepper Evakit (Standard)Demo- / Evaluation BoardK52330-0001
    E523.30*E523.31, E523.34, E523.37LIN Stepper Evakit (Generic)Demo- / Evaluation BoardK52330-0002
    E523.30*E523.31, E523.34, E523.37LIN Stepper SW Evakit (Standard)Demo- / Evaluation BoardK52330-0003
    E523.30*E523.31, E523.34, E523.37LIN Stepper SW Evakit (Generic)Demo- / Evaluation BoardK52330-0004
    * also valid for DC Motor boards

     

Application Diagram

Power Stepper Controller with Stall Detection and Auto Addressing (LIN/PWM Interface)

Documentation

*Plug & Play Chip with defined functionality | no controller programming necessary
*SoC System-on-a-Chip | with integrated microcontroller
*SBC System-Basic-Chip | with Voltage Regulator Reset, Watchdog, physical Interface
*Driver IC Driver Chip without SBC or SoC features