Toshiba Launches Three-Phase Brushless Motor Driver IC Realizing High Efficiency with Small Package

Realizing Quiet Drive and Low Energy Consumption for Home Appliances

TOKYO — (BUSINESS WIRE) — July 30, 2013Toshiba Corporation (TOKYO: 6502) today announced that it has launched a sine-wave driver IC, “TB6585AFTG”, for the three-phase DC brushless motors used in the fan motors of home appliances that require quiet operation and low energy consumption, such as ventilation fans and electric fans. Mass production shipment starts today.
The integrated PWM1 controller circuit of driver IC generates a sine wave, realizing a quiet, high efficiency motor drive.
The “TB6585AFTG” adopts a small, leadless, heat-dissipating QFN48 package that realizes the same absolute maximum ratings for voltage and current as existing products2. The driver IC contributes to equipment downsizing and lower PCB costs by reducing the required mounting area by approximately 75%.

Toshiba's Three-Phase Brushless Motor Driver IC, "TB6585AFTG" (Photo: Business Wire)

Toshiba's Three-Phase Brushless Motor Driver IC, "TB6585AFTG" (Photo: Business Wire)


Main specifications of new product

Product name TB6585AFTG
Absolute maximum ratings
(Power supply voltage: Output current)
45V: 1.8A
Power supply voltage (Operating ranges) Power supply voltage for motor: 4.5 to 42V
Other features Sine-wave PWM drive

Low output resistance Ron (Pch + Nch) = 0.7Ω (typ.)

Built-in hall bias power supply Vrefout=4.4V (typ.), 20mA (max.)

Built-in hall amplifier (corresponding to hall device)

Lead angle control

Current control

Under voltage lockout circuit

Thermal shutdown circuit

Package   QFN48 (7.0mm×7.0mm×0.9mm)
[1]: Pulse Width Modulation. A method to control torque and rotation speed of a motor by changing the on and off time in a constant period.
[2]: Comparison with “TB6585FG” with HSOP36 package.

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