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

Toshiba Electronics Europe GmbH expands its portfolio of driver solutions for brushed DC and stepper motors with the introduction of the TC78H660FNG. This H-bridge motor driver IC, which is based on the company’s latest generation diffused metal-oxide semiconductor process, can deliver a pulse width modulation (PWM)-controlled current of 2 A (maximum). Running off a 2.5 V to 16 V input supply voltage, it can drive two brushed DC motors or a single stepper motor.

The on-resistance of this driver at typical operating conditions is just 0.48Ω. This is highly advantageous from aSource: Toshiba Electronics Europe GmbH thermal management perspective, as there is considerably less heat that needs to be dissipated, leading to system cost and space savings.

The TC78H660FNG driver is suitable for a broad spectrum of potential applications such as mobile devices running off a 3.7 V lithium-ion battery and 5 V USB-powered equipment, as well as 12 V rated household appliances. Supporting energy efficient operation, it has ultra-low current requirements when in standby mode, drawing 0.1 µA. An array of safety features have been incorporated including under-voltage lockout, over-current detection and thermal shut down. Keeping PCB utilization to a minimum, this IC is supplied in a compact 5.0 mm x 6.4 mm TSSOP16 package.