Single Coil Brushless DC Motor Drivers with Soft-Switching and PWM control( 2.0 to 6.5 Volts )

Version

：A.005

Page

：7

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FD178/FD178B/FD178C

There is no requirement of protection diode for power reverse fault in normal

applications. The power polarity reverse protection circuit is built-in.

The connection of the capacitor 1uF between VDD and GND and the capacitor 0.1uF

between Hall sensor HP and HN will increase the system stability when motor is

rotating.

The power dissipated by the IC varies widely with the supply voltage, the output current,

and loading. It is important to ensure the application does not exceed the allowable

power dissipation of the IC package.

The recommended motor driver power

dissipation versus temperature is depicted as follows: