Toshiba Launches Driver IC for Small Fan Motors

  Toshiba Launches Driver IC for Small Fan Motors

Digital control type sine-wave motor driver for cooling fans of PC servers and
home appliances

Business Wire

TOKYO -- April 26, 2013

Toshiba Corporation (TOKYO:6502) has launched the industry's first^1 digital-
control-type sine-wave driver ICs for single axial fan motors, which are used
in products like refrigerators and PCs.

Toshiba Driver IC for Small Fan Motors (Photo: Business Wire)

Toshiba Driver IC for Small Fan Motors (Photo: Business Wire)

Single axial fans are often used in eco-efficient home appliances requiring
low noise and low energy consumption and for cooling PC servers. With recent
increases in the capacities of PC servers, as many as 6 to 8 cooling fans are
sometimes required in a single unit. In these applications, the motors must
offer low power consumption and low-noise operation and be small.

Toshiba's new "TC78B002FTG" controls the current of the motor with a sine
wave, using a newly designed digital control circuit to do so. This ensures
that the motor rotates more smoothly than a conventional motor with a
square-wave drive, resulting in a 30% increase^2 in motor efficiency and a
noise reduction of about 2dB to 3dB^2, compared to conventional products. In
addition, as it is possible to control the amplitude, the phase and the
modulation of the output wave-form externally, the motor can be configured to
be compatible with various applications.

While using CMOS for the control circuit of the IC and DMOS for the power
output circuit, Toshiba has still housed the circuits in a single package by
applying the latest mixed process technology. By using a 16-pin leadless QFN
type package, the mounting area is reduced by 70% compared to existing Toshiba

1: As a single axial fan motor driver as of April 26, 2013. Toshiba data.
2: Toshiba data.
3: Compared to SSOP16 package product.

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Customer Inquiries:
Mixed Signal Controller Group
Tel: +81-44-548-2821

Information in this document, including product prices and specifications,
content of services and contact information, is current on the date of the
announcement but is subject to change without prior notice.

About Toshiba

Toshiba was founded in 1875, and today operates a global network of more than
550 consolidated companies, with 202,000 employees worldwide and annual sales
surpassing 6.1 trillion yen (US$74 billion). Visit Toshiba's web site at

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Media Inquiries:
Toshiba Corporation
Semiconductor & Storage Products Company
Koji Takahata, +81-3-3457-4963
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