Motor driving circuit of EPB system for reducing dark current

A motor driving circuit, comprising:

• a motor which includes two power input terminals and is driven by receiving a battery power and a ground power;
• an H-bridge circuit which alternatively applies the battery power and the ground power to the two power input terminals in response to four motor driving signals applied from an ECU to drive the motor;
• an activating transistor which is connected between the battery power and the H-bridge circuit and is activated in response to a fail-safe control signal to apply the battery power to the H-bridge circuit;
• two monitoring units which are connected to corresponding input terminals of the two power input terminals of the motor to distribute a voltage level which is applied to the motor and output monitoring signals;
• and
• a fail-safe control signal generating circuit which is applied with a fail-safe signal, a first control signal, and a second control signal from the ECU to generate the fail-safe control signal and apply the fail-safe control signal to a gate of the activating transistor.