Toshiba announced the launch of “TB9080FG”, a three-phase brushless motor pre-driver IC.
Intended by for general
automotive applications, the “TB9080FG” replaces 120-degree rectangular wave
control with sinusoidal wave control that cuts noise from the blower fan motor
electronically.
It brings key features like:
1. Sinusoidal wave control reduces noise
Use of a third harmonic wave realizes sinusoidal wave control, contributing to quieter motor operation.
1. Sinusoidal wave control reduces noise
Use of a third harmonic wave realizes sinusoidal wave control, contributing to quieter motor operation.
2. Digital filter prevents overshoot at motor start-up
Digital filter circuits control external PWM signal, securing a slow motor start that avoids overshoot.
Digital filter circuits control external PWM signal, securing a slow motor start that avoids overshoot.
3. Built-in data table for 16 kinds of rotation numbers
A built-in data table supports use of motors with a range of pole numbers, from 4 to 12 poles.
A built-in data table supports use of motors with a range of pole numbers, from 4 to 12 poles.
4. Optimized lead angle control realizes high efficiency
Motor current is measured and the lead angle automatically controlled in 1 degree increments, contributing to motor operation efficiency. And more.
Motor current is measured and the lead angle automatically controlled in 1 degree increments, contributing to motor operation efficiency. And more.
For those who interested, Mass production
is scheduled to start in September 2013.
