TMC429

MOTION CONTROLLER FOR STEPPER MOTORS INTEGRATED CIRCUITS TMC429 DATASHEET Intelligent Triple Stepper Motor Controller with Serial Peripheral Interfaces and Step/Direction Full Compatible Successor of the TMC428 FEATURES AND BENEFITS Controls up to three stepper motors 3.3 V or 5 V operation with CMOS / TTL compatible IOs Serial 4-wire interface for µC with easy-to-use protocol Interface for SPI™ motor drivers with data rates up to 1 Mbit/s Step/Direction interface Clock frequency: up to 32 MHz (can use CPU clock) Internal position counters 24 bit wide Microstep frequency up to 1 MHz Read-out option for all motion parameters Programmable 6 bit microstep table, up to 64 entries for a quarter sine wave period Ramp generators for autonomous positioning / speed control On-the-fly change of target motion parameters Power boost automatic acceleration dependent current control Low power operation: 1.25 mA at 4 MHz (typ.) Compact Size: ultra small 16 pin SSOP package, small 24 pin SOP package, and 32 pin QFN 5x5 mm package Directly controls TMC23x, TMC24x, TMC26x, and TMC389 BLOCK DIAGRAM 3x Ref. Switches APPLICATIONS CCTV, Security Antenna Positioning Heliostat Controller Battery powered applications Office Automation ATM, Cash recycler, POS Lab Automation Liquid Handling Medical Printer and Scanner Pumps and Valves DESCRIPTION The TMC429 is a miniaturized stepper motor controller with an industry leading feature set. It controls up to three motors via SPI or Step/Direction int...