The TC78B015FTG is for three-phase full-wave brushless DC

motor with 150-degree trapezoid PWM chopper system. They

control motor rotational speed by changing the PWM duty, based

on the speed control input. Hall signal is supported to one sensor

for the TC78B015FTG.

Features

• Three-phase full wave drive

• 150-degree trapezoid PWM chopper system

• Soft switching

• Hall amplifier (hall element / hall IC):

1-sensor drive

• Power supply: absolute maximum voltage: 25 V

• Output current: absolute maximum current: 3 A

• Selectable rotational speed command input signal:

Pulse duty signal input/analog voltage input/PWM signal input

• Selectable PWM frequency

• Adjustable minimum duty in PWM control

• Adjustable speed ratio in PWM control

• Selectable lead angle control function: Auto lead angle function/External lead angle control (32 steps correspond

to 0 to 58°)

• Selectable rotation direction

• Brake function terminal

• Selectable lock detection function

• Restart function

• Rotation frequency signal (FG_OUT):

1 pulse/ electrical angle 360°, 2/3 pulse/ electrical angle 360°, 1/2 pulse/ electrical angle 360°,

1/3 pulse/ electrical angle 360°

• Lock detection signal (LD_OUT)

• Power supply voltage monitoring function

• Overcurrent detection circuit (ISD)

• Thermal shutdown circuit (TSD)

• Under voltage lockout circuit (UVLO)

• Current limit circuit

• Adjustable start conditions

• Selectable control function of forced commutation frequency (1-sensor drive).