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Mingjiada Supplies Stepper Motor Driver Chips TMC5072/TMC5072-LA Dual Silent Stepper Motor cDriver 5 to 20V, up to 1.1A with SPI Interface, 256 µSteps, SixPoint Ramp Controller, SpreadCycle and Stealthchop

Chip Profile:

The TMC5072 cDriver™ is an integrated motor driver and motion controller solution for CCTV cameras, pumps and other automation equipment applications. The device integrates two SixPoint™ ramp controllers, microstepping indexers, StallGuard2™ sensorless stall detection technology, and StealthChop™, a completely noiseless current control mode, to drive two bipolar stepper motors. The output driver block consists of low RDSon N-channel power MOSFETs configured as full H-bridges to drive the motor windings.Each output of the TMC5072 is capable of driving currents up to 1.5 A (with appropriate heat sinks).The TMC5072 is designed to be supplied from a supply voltage of 5 to 28 V. To satisfy the requirement for high reliability, the encoder interface provides feedback on the system status. The device provides SPI interfaces for configuration and diagnostics as well as step and direction interfaces.

Chip Features:

Two 2-phase stepper motors

Drive capability up to 2x 1.1A coil current (2x 1.5A peak current)

One motor can be connected in parallel at 2.2A (3A peak)

Motion controller with SixPoint™ ramp

Voltage range 4.75 to 26V DC

SPI and single-wire UART with special bus loop option

Dual encoder interface and 2x Ref.-Switch inputs per axis

Maximum resolution up to 256 microsteps/full steps

StealthChop™ for extremely quiet operation and smooth motion

SpreadCycle™ highly dynamic motor control chopper

DCStep™ load-dependent speed control

StallGuard2™ Highly Accurate Sensorless Motor Load Detection

CoolStep™ current control for up to 75% energy savings

Passive braking and idle mode

Comprehensive protection and diagnostics

Compact 7x7mm2 QFN48 package

Applications:

CCTV, security

Office automation

Antenna positioning

Heliostat controller

Battery powered applications

ATMs, cash dispensers, POS

Laboratory automation

Liquid handling

Medical

Printers and scanners

Pumps and Valves

Company home page: www.hkmjd.com