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News
Toshiba Electronic Devices & Storage Corporation Adds New Three-Phase Brushless Fan Motor Controller IC Allowing Easy Switching to Multipolar Motor
2017-09-29 | ReturnToday’s motor rotors are multi-polarized, since higher motor driving efficiency and noise reduction are required for fan motors used air conditioners, air purifiers and other in home appliances. Conventionally, motor control is carried out by a microcontroller and an 8-pole rotor and a rotation-control signal that outputs 3 pulses a cycle.
The new product can control the rotation speed of a 12-pole rotor with a standard microcontroller system by using a rotation-control signal that outputs 2 pulses in one cycle. Switching from an 8-pole to 12-pole rotor achieves higher drive efficiency and reduces noise, but rotation-control for an 8-pole rotor can also adopted, which shortens the development term.
The controller is housed in a small surface-mount 32-pin QFN type package, which has a 68% smaller mounting area than the widely used 30-pin SSOP type package, contributing to space- saving in the board layout.
Main Features
>Realizes low vibration and noise with a sine-wave PWM drive
>Possible to upgrade from 8-pole rotor to 12-pole rotor motor without changing the rotation-control system. Since the rotation-control signal outputs 2 pulses in one cycle, the current rotation-control system for an 8-pole rotor can be applied with a 12-pole rotor.
>1.Small surface-mounting type package
Housed in a small, 32-pin QFN package (mounting area: 5×5mm). The mounting area is 68% smaller than for products in 30-pin SSOP type packages (mounting area: 32.8×13.5mm), contributing to space-saving in mounting and board layout.
Main Specifications
|
3-phase sine-wave PWM brushless motor controller |
|
Part number |
Current product TB6584FNG/AFNG |
New product TB67B054FTG |
Power supply voltage (Absolute maximum ratings) |
18V |
|
Power supply voltage (Operation range) |
6V to 16.5V |
|
Rotation speed output signal (FG output signal) |
3 pulses per one cycle |
2 pulses per one cycle |
Package |
SSOP30 Mounting area: 10.2×7.6mm |
QFN32 Mounting area: 5mm×5mm |
Sample status |
In mass production |
Samples ready to ship |
Source:http://www.semicon.toshiba.co.jp/eng/