Electronicdesign Com Article Components Driver Ics Cut Stepper Motor Component Count
Electronicdesign Com Article Components Driver Ics Cut Stepper Motor Component Count
Electronicdesign Com Article Components Driver Ics Cut Stepper Motor Component Count
Electronicdesign Com Article Components Driver Ics Cut Stepper Motor Component Count
Electronicdesign Com Article Components Driver Ics Cut Stepper Motor Component Count

Driver ICs Cut Stepper Motor Component Count

Feb. 19, 2010
Driver ICs Cut Stepper Motor Component Count

AMIS-30532 and AMIS-30542 micro-stepping stepper motor drivers

Pheonix, Arizona: ON Semiconductor has developed two new highly integrated driver ICs that the company says will drive high-current motors with reduced component count and board space in stepper-motor-based applications. The AMIS-30532 and AMIS-30542 micro-stepping stepper motor drivers have high-current capabilities with integrated H-bridges.

Each device integrates smart motor control capability with voltage regulation, on-board current sensing, and a number of protection and diagnostic functions. This level of integration eliminates the need for external switches and sense resistors.

Designed for use with two-phase stepper motors and a host microcontroller, the AMIS-30542 mixed-signal motor driver ICs deliver maximum current outputs of 2.2 A continuous and 5.0 A peak.

The ICs feature two embedded H-bridges and connect to a host microcontroller via a serial peripheral interface (SPI) and dedicated I/O pins. Each chip provides speed and load-angle output, which allows for the accurate control of motor torque and speed as well as the creation of stall detection algorithms. Seven step modes can be configured, from full step to 32 micro-steps.

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