December 12, 2018
Toshiba Electronic Devices & Storage Corporation
Realizes motor control with two dry-cell batteries
TOKYO—Toshiba Electronic Devices & Storage Corporation (“Toshiba”) today announced the launch of "TC78H653FTG,” an addition to its line-up of dual-H-bridge driver ICs for DC brushed motors and stepping motors that delivers the low voltage (1.8V) and high current (4.0A) essential for low voltage equipment powered by dry-cell batteries, such as mobile devices, electronic products for the home and USB drives.
In recent years, as IoT advances and wireless technologies find increasingly wide use, demand for applications that can be remotely operated via smartphones and other tools is increasing, and with it interest in battery-powered motor control.
This trend is stimulating demand for driver ICs capable of driving devices even at the low voltage of 1.8V (0.9V × 2 batteries, whose capacity is reduced by discharge though 1.5V, 1.2V, etc. are initial voltages.).
Until now, the mainstream devices have been H-bridge driver ICs constructed with bipolar transistors, which can achieve stable operation at low voltage. However, problems with this include large current consumption that shortens battery life and increase current losses in ICs, and insufficient motor torque, since the voltage applied to the motor is lowered.
Toshiba’s new dual-H-bridge driver IC uses Toshiba’s specialized DMOS process for low voltage drives to achieve a longer battery life with a stable low voltage operation. Improved motor torque is also realized by reducing IC losses through low on-resistance . The new product is suitable for motor applications driven by relatively low voltage batteries (1.8V to 7.0V).
Motor applications driven by relatively low voltage batteries (1.8V to 7.0V), mobile devices (cameras, electric toothbrushes, printers) using 3.7V lithium-ion batteries, products for the home, such as electronic locks, smart meters, electronic bidet toilet, and toys using two 1.5V dry batteries, and devices using 5V USB power supply.
|Power supply voltage
|1.8V to 6.0V||1.8V to 7.0V|
(Absolute maximum rating)
|2.0A in small mode
4.0A in large mode
|Number of H-bridge channels||2ch||2ch in small mode
1ch in large mode
DC brushed motors (driving two motors is possible.)
Bipolar stepping motors
|Output on resistance
(total of high and low side)
0.22Ω(typ.)in small mode
0.11Ω(typ.)in large mode
|Detection functions||Over current detection, thermal shutdown, and under voltage lockout|
(size: 5.0 mm x 6.4 mm, pin pitch: 0.65 mm)
Built-in standby function: power consumption is 0μA (typ.)
High speed PWM specification
|Stock Check & Purchase|
 Used to control forward and reverse rotation for DC brushed motors and stepping motors. Transistors and loads have an H-shaped configuration.
 The rating in the large mode and the actual motor current are limited by operating conditions such as ambient temperature and power supply voltage
 Resistive component when current flows. The lower resistance value achieves a lower loss in motor drives and suppresses heat generation.
For more information about the new product, please visit:
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.