New dual-channel H-bridge motor driver IC with PWM control

09-11-2020 | Toshiba | Semiconductors

Toshiba Electronics Europe GmbH has expanded its portfolio of driver solutions for brushed DC and stepper motors with the launch of the TC78H660FNG. This H-bridge motor driver IC, based on the company’s latest generation DMOS process, can produce a PWM-controlled current of 2A (maximum). Running off a 2.5V to 16V input supply voltage, the device can drive two brushed DC motors or a single stepper motor.

The on-resistance of this driver at typical operating conditions is only 0.48Ohm. This is highly beneficial from a thermal management standpoint, as there is much less heat that requires to be dissipated - thereby leading to system cost and space savings.

The driver is ideal for a wide spectrum of potential applications including mobile devices running off a 3.7V Li-Ion battery and 5V USB-powered equipment, as well as 12V-rated household appliances. Supporting energy-efficient operation, it provides ultra-low current needs when in standby mode, drawing 0.1µA. An array of safety features has been included. These include under-voltage lockout, over-current detection and thermal shut down. Keeping PCB utilisation to a minimum, this IC is provided in a compact 5mm x 6.4mm TSSOP16 package.

By Natasha Shek