Product category:
Power Supply ICs and Controllers
News Release from: Toshiba Electronics Europe | Subject: TB62201AF
Edited by the Electronicstalk Editorial
Team on 11 May 2001
High-frequency chopping cuts stepper
motor noise
New from Toshiba Electronics, the TB62201AF dual stepper motor driver IC outputs a micro-step pseudo sinewave with a chopping frequency that can be set by the user at 100kHz or higher.
New from Toshiba Electronics is the TB62201AF dual stepper motor driver IC, which outputs a micro-step pseudo sinewave with a chopping frequency that can be set by the user at 100kHz or higher At such frequency levels, the stepping waveform is much closer to a pure sine wave, and so motors driven by the device will run more quietly
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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Fabricated using Toshiba's BiCD process, the TB62201AF features a low on-resistance of 0.5Ohm and a low power consumption of just 0.86W per motor drive at a typical output of 24V and 0.6A.
Maximum output voltage and current are specified as 40V and 1.5A, respectively.
Integrated into each half of the device is a pair of 16bit shift and latch registers, a pair of 4bit D/A convertors, a charge pump circuit and a mixed decay mode facility.
Primarily aimed at high-volume applications such as fax machines and other office equipment, the TB62201AF has a high data transfer rate of 25MHz and is supplied in a 36-pin HSOP surface-mount package.
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