Global Sources
EE Times-India
Stay in touch with EE Times India
EE Times-India > Embedded

Low-cost stepper controller provide more programmable micro-steps

Posted: 17 Dec 2007     Print Version  Bookmark and Share

Keywords:stepper motor controller  step size  MCU 

LSI Computer Systems Inc. (LSI/CSI) has introduced the LS7290, a low-cost precision stepper motor controller designed for two-phase bipolar or four-phase unipolar stepper motors with minimum burden on the host MCU.

The device can replace LSI/CSI's pricier L297 in most applications while providing more programmable micro-steps, according to the company. The LS7290 is capable of a large selection of step sizes, ranging between full and 1/32 step.

LS7290 features include a nominal clock frequency of 8MHz; a maximum stepping rate of greater than 30k per second; programmable inter-step blanking delays of 1.25µs, 2.5µs, 3.75µs, and 5µs at 8MHz; H-bridge PWM resolution of 0.39 per cent; and supply voltage of 3V to 5.5V.

Price for the LS7290 is Rs.45.38 ($1.15) for 1,000-unit quantities.

- Ismini Scouras

Comment on "Low-cost stepper controller provide ..."
*  You can enter [0] more charecters.
*Verify code:


Visit Asia Webinars to learn about the latest in technology and get practical design tips.


Go to top             Connect on Facebook      Follow us on Twitter      Follow us on Orkut

Back to Top