Product category: Power Supply ICs and Controllers
News Release from: Toshiba Electronics Europe | Subject: TB6539F/N
Edited by the Electronicstalk Editorial Team on 30 April 2001
Motor controller's sinusoidal
output cuts noise
Toshiba Electronics' new PWM three-phase brushless motor controller IC operates in conjunction with an external power FET module to produce a sinusoidal motor coil current waveform
Toshiba Electronics has introduced a new PWM (pulsewidth modulation) three-phase brushless motor controller IC that is designed to operate in conjunction with an external power FET module to produce a sinusoidal motor coil current waveform, thereby minimising both electrical and acoustic noise.
This article was originally published on Electronicstalk on 30 April 2001 at 8.00am (UK)
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Utilising a dual modulation technique, the new TB6539F/N is believed to be the first PWM motor controller IC able to generate a sine wave output without the need for an additional external microcontroller.
The new device also features a built-in dead time function, which allows safe operation of the power FETs in push-pull configuration.
Available in a choice of 24-pin DIL or SOP30 packages, the TB6539F/N operates from a maximum supply voltage of 18V and has a maximum output current rating of 20mA.
Power dissipation is specified as 1.75W when mounted on a PCB, and the device has an operating temperature range of -20 to +85C.
Typical applications include air conditioning units and domestic appliances.
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