Product Details TC78H600FTG is a dual-channel full-bridge driver IC designed for controlling brushed DC motors and other small motor-drive applications. The device integrates DMOS output transistors with a PWM drive architecture, providing a compact motor-control solution that reduces the need for separate external power transistors and driver stages.The device incorporates two independent full-bridge motor-driver channels. Each channel can be used to control one brushed DC motor, allowing a single IC to operate two motors independently. When configured appropriately, the two bridge channels can also be used together to drive one stepper motor.TC78H600FTG supports four basic motor-control modes, including clockwise rotation, counterclockwise rotation, stop and short brake. PWM control provides additional flexibility for controlling motor speed and power delivery according to the requirements of the application. The control inputs allow the motor-drive operation to be managed directly by a microcontroller or other digital control system.The control-side supply voltage operates from 2.7V to 5.5V, making the device suitable for systems using common low-voltage microcontrollers and digital controllers. The motor supply voltage can reach up to 15V under the specified absolute maximum conditions, providing flexibility for small DC motor systems with different supply architectures.The output stage supports an average output current of up to 0.8A and a peak output current of up to 1A under the specified conditions. The integrated DMOS architecture is designed to provide efficient switching while keeping the external motor-control circuitry compact.Protection functions are integrated into TC78H600FTG to improve operating reliability. The device includes overcurrent detection, thermal shutdown and undervoltage lockout functions. A built-in cross-conduction protection circuit helps prevent unwanted simultaneous activation of the high-side and low-side output devices within a bridge.An ALERT output provides a way for the host controller to monitor certain driver fault conditions. Internal pull-down resistors on the control inputs also help establish defined input states when external control signals are not actively driven.TC78H600FTG is housed in a 24-pin WQFN package measuring approximately 4mm × 4mm. The compact surface-mount package helps reduce PCB area while integrating the control logic and motor power stage into a single IC.The device can be used in equipment requiring compact brushed DC motor control, including robotics, printers, office equipment, consumer electronics, small actuators and general-purpose industrial equipment. Its dual full-bridge structure is particularly useful when two independent motors must be controlled from a single PCB.For stepper motor applications, the two bridge channels can be combined to control one motor using appropriate excitation sequences. Toshiba documentation describes two-phase and 1-2 phase excitation operation for stepper motor control.When designing with TC78H600FTG, engineers should verify the motor supply voltage, average and peak motor current, PWM frequency, motor inductance, PCB thermal design and protection conditions against the actual motor load. The motor supply should also be designed with appropriate decoupling and transient suppression because inductive motor loads can generate voltage transients during switching.