Toshiba Corporation today announced the launch of three-phase brushless Hall sensorless driver ICs, the TB67B001FTG, TB67B008FTG and TB67B008FNG, for the cooling fans of PC servers and home appliances such as refrigerators. Mass production starts today. Quiet operation and downsizing of the motors are essential for the small cooling fans that are widely used for cooling PC servers and eco-conscious home appliances.
The new products, featuring the 150 degrees wide-angle commutation drive, contribute to lower vibration and motor noise. In addition, the WQFN24 package version downsizes required board space to about 88% that of an SSOP24 package, contributing to PCB downsizing.
Features of these drivers include: Quiet operation, Vibration and motor noise are reduced by the 150Â° wide-angle commutation drive. Downsizing, the TB67B001FTG adopts a leadless VQFN36 (5 x 5 x 0.9mm) package. The TB67B008FTG is delivered in a WQFN24 (4 x 4 x 0.75mm) package, enabling mounting in the limited space offered by small cooling fans. And the TB67B008FNGis in a typical SSOP24 package (8.3 x 7.6 x 1.6mm). Sensorless drive, The new products control the rotation of three-phase brushless motor without any need for Hall sensors. High-speed rotation, High-speed rotation, 30,000rpm, is achieved with a high-speed pwm drive and improved cooling.