TMC603 - Three phase motor driver

8 5.2 MOSFET DRIVER STAGE 10 5.2.1 Principle of operation 10 5.2.2 Break-before-make logic 11 5.2.3 PWM control via microcontroller 12 5.2.4 Slope control 13 5.2.5 Reverse capacity (QGD) protection 14 5.2.6 Considerations for QGD protection 15 5.2.7 Effects of the MOSFET bulk diode 16 5.2.8

• The TMC603 is a three phase motor driver for highly compact and energy efficient drive solutions. It contains all power and analog circuitry required for a high performance BLDC motor system. The TMC603 is designed to provide the frontend for a microcontroller doing motor commutation and control algorithms. It directly drives 6 external N-channel MOSFETs for motor currents up to 30A and up to 50V and integrates shunt less current measurement, by using the MOSFETs channel resistance for sensing.