TMC457-BC

MOTION C O N T R O L L E R F O R S T E P P E R A N D P I E Z O M O T O R S I N T E G R A T E D C I R C U ITS TM C 4 57 Step per and Piezo Mo tor C ontroll er (S-sh ape Ramps) with Enc oder Int erface, e asyPID™ Feedbac k Control and Inte grated S equencer M A IN CH A R AC T ER IS T IC S INFO The TMC457 is a high-end single axis micro stepping motion controller for 2-phase bipolar stepper motors, piezo motors (Piezo LEGS®). Via step / direction interface 3-phase stepper motors can also be controlled (requires additional TMC332). It adds to any microcontroller or processor with SPI interface. It is intended for applications, where a precise and fast, jerk-free motion profile is desired. The TMC457 supports linear and S-shaped velocity ramps. It’s chopSync™ feature allows high speed movement avoiding resonances. An encoder can be added for extremely quick and precise positioning using the internal hardware PID regulator easyPID™ and for increased reliability / fault detection. For maximum flexibility all motion control parameters (target position, target velocity, acceleration, deceleration and bow) can be changed on-the-fly at any time during motion. +1.5V +3.3V • S-shaped and linear ramps with on-the-fly alteration of all parameters • programmable high resolution sequencer with (12bit, 8192 entry) micro step LUT table • integrated sequencer • incr. encoder interface with flexible up- and down scaling to match drive resolution • fast and stable easyPID™ PID controller • 32 bit registers “from mHz to MHz” • reference switch processing • virtual stop sw. (programmable soft limits) • position pulse output to trigger ext. events • synchronization of multiple axis via step/direction input • integrated chopSync™ for high velocities • analog high resolution motor driver control via external dual -low cost- 12 bit DAC • energy saving by automatic load angle dependent current control one capacitor per supply pin 100n +1.5V GND 100n +3.3V RES RES I TMC457 CLK ELECTRICAL DATA INTERFACE • 3.3V IO/ 1.5V core • SPI interface to microcontroller • step / direction output (with progr. timing) • stallGuard™ interface for TMC246/TMC249 family stepper motor drivers CLK I ENABLE I Interface Section Motion profile generation S-Ramp generator Sequencer O NSCS STEP_OUT I Host CPU SPI Interface SCK I SDI I SPI bus interface Register Block target v SDO O Trapezoid Ramp generator Pulse generator Output Pulse generator STEP/ DIR O DIR_OUT O XSTEP_OUT O HIRES_OUT Step/Dir Output O STDBY_OUT NINT O Interrupt control control & status Position Counter Microstep RAM 8192*12 O POSCOMP O Position compare 2 phase stepper & piezo sequencer O PHA PHB O O O Optional Step/ Dir Input STEP_IN I DIR_IN I STEP DIR Prescaler easyPID PID controller O I O NCS_DAC SCK_DAC SDO_DAC_A SDO_DAC_B PZO_EN Classic stepper driver Analog control of Stepper / Piezo via DAC (LTC2622) TMC246 / TMC249 stepper driver PACKAGE • FBGA144 package 13 x 13 mm² • RoHS compliant PID Stop / Reference Switches Optional Incremental Encoder STOPL I TMC24x SPI interface O O I STOPR I Stop input processing & virtual stop switches I NCS_DRV SCK_DRV SDO_DRV SDI_DRV NANA_SPI Encoder quadrature decoder Encoder Scaler & Counter ChopSync O ChopClk ENC_A ENC_B ENC_N synchronized chopper clock 10 mm I I I OR DE R C O DE D E S C RI P T I ON TMC457-BC Related product: TMC457-Eval 1-axis motion controller with encoder feedback, FBGA144 package Evaluation board for TMC457 www.trinamic.com – for detailed information and datasheets 93