High-performance microstep motor drivers offer selectable excitation modes
October 12, 2010 // Paul Buckley
ROHM Semiconductor is expanding its line-up of high-performance, high-reliability stepper motor drivers with its new BD63843EFV, BD63847EFV and BD63860EFV families offering selectable excitation modes - full-step to sixteenth-step with 1.0 A or 2.0 A output current and full-step to eighth-step with 2.5 A output current.
The new microstep drivers enable designers to optimize motor torque, noise and vibration for a wide range of applications. Full-step mode is ideal for sets requiring large current for high torque, while eighth or sixteenth-step mode features a smooth output waveform for lower noise and vibration. The selectable current decay pattern (FAST/SLOW/MIXED decay modes) further enhances motor performance. Circuit design is simplified through a combination of features including an internal voltage regulator, control input translator and DMOS output. The built-in regulator permits operation from a single (max.) 36 V supply. Instead of parallel control lines, a single clock (CLK) input is converted by the device's internal translator into motor drive signals. Additionally, ROHM's advanced DMOS (Pch + Nch) output topology eliminates the need for external charge pump components.
The combination of advanced power semiconductor process technology and enhanced packaging has resulted in exceptional motor driver solutions incorporating undervoltage, overvoltage, overcurrent and thermal protection not typically included in motor driver ICs. Packaging benefits include bottom-side heat sinking to simplify thermal design, adjacent-pin short protection to reduce production and field failures as well as pin-compatibility among parts with different current ratings. The series also features ROHM's Ghost Supply Prevention (GSP) function that prevents aberrant operation in the off mode delivering an unmatched degree of reliability.
These stepper motor drivers are ideal to optimize the combination of function, performance, power and package size for applications such as robotics, factory automation, sewing machines, security cameras, printers, copiers, scanners, lasers and any other application requiring precision motor control.
Samples of the new microstepper motor drivers are available now.
Visit ROHM Semiconductor at www.rohmeurope.com
Oscilloscope engine plugs into portable Apple products
September 30, 2014
This month, Oscium is giving away three of its iMSO-204L dual analogue iOS oscilloscopes, worth USD400 each. Designed with ...
BMW joins forces with Baidu for automated driving
Self-tuning acoustic-ready chip increases audio focus
16nm FinFETs boost ARM's 64-bit big.LITTLE
X-ray imaging reveals path to extending battery lifetimes
Electron innovation prolongs power in mobile devices
September 30, 2014
Researchers from The University of Texas at Dallas have created technology that could be the first step toward wearable computers ...
What Is Digital Power System Management?
Qualcomm increases share of smartphone processor market
Aggregating disparate data protocols from IoT
- Solutions for Millimeter Wave Wireless Backhaul
- Enter Linduino
- A Novel Approach to Industrial Rectifier Systems
- Putting FPGAs to Work in Software Radio Systems Handbook
InterviewCEO interview: AMS' Laney on driving a sensor-driven business
Kirk Laney, CEO of Austrian mixed-signal chip and sensor company AMS, wants to leverage the opportunity that technology affords to create new markets for sensors and sensor interfaces.
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Oscium is giving away three of its iMSO-204L dual analogue iOS oscilloscopes, worth USD400 each. Designed with native Lightning compatibility, the iMSO-204L transforms the iPad, iPhone, and iPod touch into an ultra-portable, two-channel oscilloscope.
Since Apple changed its connector, Oscium has been working to bring native compatibility to its customers. The third generation...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.