Motors powered by low-voltage batteries
Devices equipped with 3.7V lithium-ion batteries
Suitable for home appliances, 5V USB powered devices, etc.

Toshiba added the TC78H653FTG to its dual-H-bridge driver IC lineup on the 12th.
The dual H-bridge driver IC is ideal for DC brushed motors and stepping motors. Its low voltage (1.8 V) and high current (4.0 V) make it essential for battery-powered, low-voltage devices such as mobile devices, consumer electronics, and USB drives.

With the recent advancements in IoT technology and the launch of 5G commercial services, demand for remotely controllable applications via smartphones and other devices is increasing, and interest in battery-powered motor control is also heating up. This trend is stimulating demand for driver ICs capable of operating devices even at low voltages of 1.8 V.

Until now, major devices have used H-bridge driver ICs. These ICs utilize bipolar transistors to provide stable operation at low voltages. However, their high current consumption reduces the IC's battery life and increases current loss. Another drawback is their insufficient motor torque. If the motor torque is insufficient, the voltage applied to the motor will be lower.

Toshiba's dual H-bridge driver IC utilizes Toshiba's DMOS low-voltage process. The DMOS process enables longer battery life and stable low-voltage operation. Motor torque is also improved by reducing IC losses through low on-resistance.

The TC78H653FTG is suitable for motor applications powered by relatively low-voltage batteries (1.8 to 7.0 V). It also supports PWM control at 500 kHz through high-speed output switching.